The four major tissues type are ______,______,______ and ______.

The four major tissues type are ______,______,______ and ______.

a. Bone, blood, ligament, tendon
b. Anaphase, prophase, metaphase, telophase
c. Epithelial, muscular, nervous, connective
d. Epithelial, lipid, carbohydrate, nucleic acid







Answer: C

A gene segment of DNA contains the blueprint for building one ______.

A gene segment of DNA contains the blueprint for building one ______.

a. Lipid
b. Acid
c. Protein
d. Carbohydrate






Answer: C

The main reason cells go through mitosis is to ______ and ______.

The main reason cells go through mitosis is to ______ and ______.

a. Repair, expire
b. Grow, repair
c. Grow, lyse
d. Repair, photosynthesis







Answer: C

Cells in a ___ solution will burst (lyse) as water rushes into the cell in an attempt to reach osmotic balance.

Cells in a ___ solution will burst (lyse) as water rushes into the cell in an attempt to reach osmotic balance.

a. Isotonic
b. Hypertonic
c. Hypotonic
d. None of the above




Answer: C

Movement of solutes through cells from a higher to a lower concentration is called ______.

Movement of solutes through cells from a higher to a lower concentration is called ______.

a. Osmosis
b. Homeostasis
c. Active transport
d. Diffusion






Answer: A

The job of the Golgi apparatus is to package ______ for export from the cell.

The job of the Golgi apparatus is to package ______ for export from the cell.

a. Nucleic acid
b. Lipids
c. Proteins
d. Water molecules

Answer: C

Microvilli and cell junctions are specializations of which major cell region?

Microvilli and cell junctions are specializations of which major cell region?

a. Nucleus
b. Cytoplasm
c. Golgi apparatus
d. Plasma membrane







Answer: D

Specialized cellular structures called ______ carry out necessary tasks to support life.

Specialized cellular structures called ______ carry out necessary tasks to support life.

a. Organ systems
b. Tissues
c. Organelles
d. Organs






Answer: C

The essential nutrients ______ comprises over 60% of any living organism's cells.

The essential nutrients ______ comprises over 60% of any living organism's cells.

a. Water
b. Calcium
c. Nitrogen
d. Helium






Answer: A

Cells build the majority of their components from ______.

Cells build the majority of their components from ______.

a. Lipids
b. Carbohydrates
c. Nucleic acids
d. proteins





Answer: D

Which of the following is NOT true about carbohydrates?

Which of the following is NOT true about carbohydrates?

a. Disaccharides are a type of carbohydrates
b. Glucose is a polysaccharide stores by the liver
c. Carbohydrates are the primary energy molecules for most living things
d. Glucose is an example of a carbohydrate





Answer: B

Which of the following is NOT true about matter?

Which of the following is NOT true about matter?

a. Liquids have neither a definite shape nor a definite volume
b. Solids have a definite share and volume
c. Gases have neither a definite shape nor a definite volume
d. Matter exists in solid, liquid and gaseous states






Answer: A

Glycogen - Glucose is an example of which pattern of chemical reactions?

Glycogen - Glucose is an example of which pattern of chemical reactions?

a. Dehydration reaction
b. Synthesis reaction
c. Exchange reaction
d. Hydrolysis reaction






Answer: D

What bonds are formed when electrons are shared equally?

What bonds are formed when electrons are shared equally?

a. Ionic bonds
b. Nonpolar covalent bonds
c. Polar covalent bonds
d. Hydrogen bonds






Answer: B

The function of ATP is to ______.

The function of ATP is to ______.

a. Allow cells to use energy directly from simple sugars
b. Code for mRNA
c. Provide a form of chemical energy that is usable by all body cells
d. Form DNA





Answer: C

The atomic number identifies the element and refers to the number of ______.

The atomic number identifies the element and refers to the number of ______.

a. Molecules
b. Atoms
c. Neutrons and protons in the nucleus
d. protons





Answer: D

What diagnostic test involves collecting a sample of CSF?

What diagnostic test involves collecting a sample of CSF?

a. Electroencephalogram
b. Cognitive testing
c. Lumbar puncture






Answer: C

Which is the innermost layer of the meninges?

Which is the innermost layer of the meninges?

a. pia mater
b. dura mater
c. arachnoid mater





Answer: A

Which is the outermost layer of the meninges?

Which is the outermost layer of the meninges?

a. pia mater
b. dura mater
c. arachnoid mater




Answer: B

Which layer of the epidermis is responsible for producing new cells?

Which layer of the epidermis is responsible for producing new cells?

a. Stratum corneum
b. Stratum basale
c. Stratum lucidum
d. Stratum spinosum






Answer: B

Which of the following statements about the epidermis is NOT TRUE?

Which of the following statements about the epidermis is NOT TRUE?

a. The epidermis does not contain any blood vessels
b. The epidermis does not contain any nerve cells
c. The outer layer of the epidermis is composed of dead cells that are constantly sloughing






Answer: C

Straight hair is a result of hair shafts that are ___________.

Straight hair is a result of hair shafts that are ___________.

a. Square
b. Round
c. Flat
d. Triangular






Answer: B

Which hair color develops due to the complete absence of melanin production?

Which hair color develops due to the complete absence of melanin production?

a. Black
b. Red
c. White
d. Grey






Answer: C

These glands produce an oily substance that keeps the skin and hair from over drying. The oily substance also has anti-bacterial properties

These glands produce an oily substance that keeps the skin and hair from over drying. The oily substance also has anti-bacterial properties

a. Sudoriferous glands
b. Sebaceous glands
c. Sweat glands






Answer: B

New hair cells divide and grow in the hair

New hair cells divide and grow in the hair

a. Shaft
b. Root
c. Follicle
d. Sebaceous glands






Answer: C

The fibrous protein that makes up your hair, fingernails, and toe nails is called:

The fibrous protein that makes up your hair, fingernails, and toe nails is called:

a. Melanin
b. Keratin
c. Collagen
d. Elastin






Answer: B

The innermost layer of the skin is called the:

The innermost layer of the skin is called the:

a. Dermis
b. Epidermis
c. Hypodermis (subcutaneous fascia)






Answer: C

The ______sweat glands are found in the groin, armpits, and anal region. They become active around puberty.

The ______sweat glands are found in the groin, armpits, and anal region. They become active around puberty.

a. Eccrine
b. Apocrine
c. Endocrine
d. Alopecia






Answer: D

Which skin layer that contains hair follicles, sweat glands, sebaceous glands and nerve endings?

Which skin layer that contains hair follicles, sweat glands, sebaceous glands and nerve endings?

a. Dermis
b. Epidermis
c. Hypodermis (subcutaneous fascia)






Answer: A

The pigment responsible for skin color is:

The pigment responsible for skin color is:

a. Melanin
b. Keratin
c. Collagen
d. Elastin





Answer: A

The outermost layer of the skin is called the:

The outermost layer of the skin is called the:

a. Dermis
b. Epidermis
c. Hypodermis (subcutaneous fascia)






Answer: B

Muscle _________is partial contraction and resistance to stretching shown even when a muscle is at rest.

Muscle _________is partial contraction and resistance to stretching shown even when a muscle is at rest.

a. Tone
b. Ataxia
c. Atrophy




Answer: A

When a muscle begins to waste away because of disuse, this is called:

When a muscle begins to waste away because of disuse, this is called:

a. Atrophy
b. Dystrophy
c. Hypertrophy






Answer: A

When a muscle increases in diameter, this increased growth and development is called:

When a muscle increases in diameter, this increased growth and development is called:

a. Atrophy
b. Dystrophy
c. Hypertrophy






Answer: C

Which type of muscle does not have striations?

Which type of muscle does not have striations?

a. skeletal
b. smooth
c. cardiac






Answer: B

Which type of muscle is found attached to the bones?

Which type of muscle is found attached to the bones?

a. skeletal
b. smooth
c. cardiac






Answer: A

Which type of muscle is found in the blood vessels and airways?

Which type of muscle is found in the blood vessels and airways?

a. skeletal
b. smooth
c. cardiac







Answer: B

Which type of muscle is found in the heart?

Which type of muscle is found in the heart?

a. skeletal
b. smooth
c. cardiac







Answer: C

Which type of muscle is under voluntary control?

Which type of muscle is under voluntary control?

a. skeletal
b. smooth
c. cardiac




Answer: A

The hip is an example of _________ joint.

The hip is an example of _________ joint.

a. ball and socket
b. hinge
c. pivot
d. saddle





Answer: A

Which type of joint is filled with fluid?

Which type of joint is filled with fluid?

a. cartilaginous joint
b. synovial joint
c. fibrous joint
d. endohydrous joint





Answer: B

Which kind of bone cell tears down bone in order to release calcium and phosphate into the blood?

Which kind of bone cell tears down bone in order to release calcium and phosphate into the blood?

a. osteoprogenitor cells
b. osteoclasts
c. osteoblasts
d. osteocytes





Answer: B

The outer covering of a bone is called:

The outer covering of a bone is called:

a. endosteum
b. osteon
c. periosteum
d. trabeculae






Answer: C

These bones are oddly shaped (like jigsaw puzzle pieces.)

These bones are oddly shaped (like jigsaw puzzle pieces.)

a. long bones
b. short bones
c. irregular bones
d. flat bones






Answer: C

What is the primary reproductive organ for both genders?

What is the primary reproductive organ for both genders?

A. Ampulla
B. Epididymis
C. Gonads
D. Fimbriae

Answer: C

What are the three layers of the uterine walls?

What are the three layers of the uterine walls?

A. Myometrium
B. Peritoneum
C. Perimetrium
D. Endometrium

Answer: A, C 7 D.

Which of these parts makes up the Pharynx?

Which of these parts makes up the Pharynx?

A. Asopharynx
B. Nasopharynx
C. Oropharynx
D. Laryngopharynx
B. Nasopharynx

Answer: C & D

Which of these is NOT a major organ of the Digestive system?

Which of these is NOT a major organ of the Digestive system?

A. Nasal Cavity
B. Adrenal Glands
C. Teeth and Gums
D. Thyroid Gland

Answer: B & D.

Which of the following are functions of the Digestive system?

Which of the following are functions of the Digestive system?

A. Breaks down food and prepares for defecation
B. Absorbs nutrients
C. Absorption and inactivation of toxins, hormones, immunoglobulins, and drugs
D. Filters out harmful substances

Answer: A, B & D.

What is sickness?

What is sickness?

A. Not real
B. All mental
C. Avoidable
D. Real

Answer: D

How many sets of proteins are in the Complement System?

How many sets of proteins are in the Complement System?

A. 13
B. 8
C. 16
D. 24






Answer: C

How many sets of proteins are in the Complement System?

How many sets of proteins are in the Complement System?

A. 13
B. 8
C. 16
D. 24






Answer: C

What are the Lymphatic organs?

What are the Lymphatic organs?

A. Spleen
B. Liver
C. Lymph Nodes
D. Thymus
A. Spleen

Answer: C & D.

The Complement System is activated in two ways, how?

The Complement System is activated in two ways, how?

A. Armored Pathway
B. Classical Pathway
C. Congruent Pathway
D. Alternative Pathway

Answer: B & D.

Which of these is NOT one of the five antibodies?

Which of these is NOT one of the five antibodies?

A. IgG
B. IgA
C. IgE
D. IgF
E. IgM

Answer: D

What are alveoli sacs filled with?

What are alveoli sacs filled with?

A. Water
B. Air
C. Gas

D. Waste

Answer: B

What system(s) if the Pharynx a part of?

What system(s) if the Pharynx a part of?

A. Cardiovascular System
B. Respiratory System
C. Lymphatic System
D. Digestive System

Answer: B & D.

What are structures of the Nasal Cavity?

What are structures of the Nasal Cavity?

A. Epiglottis
B. Sinuses
C. Palate
D. Nares

Answer: B & C.

Ossicles do what with sound waves?

Ossicles do what with sound waves?

A. Receive them
B. Transmit them
C. Amplify them
D. Mute them

Answer: B & C.

The internal ear plays a role in BOTH hearing and equilibrium. - TRUE or FALSE

The internal ear plays a role in BOTH hearing and equilibrium.
- TRUE or FALSE

Answer: TRUE

Which structures work together to lubricate the eyes?

Which structures work together to lubricate the eyes?

A. Tarsal glands
B. Ciliary glands
C. Rods and Cones
D. Conjunctiva

Answer: A, B & D.

Which of the following is true to a reflex arc?

Which of the following is true to a reflex arc?

A. Starts with a sensory receptor being stimulated
B. Information is sent to the brain using an efferent nerve
C. Information is sent to the spinal cord using an afferent nerve
D. Spinal cord processes the information
E. Efferent nerve stimulates an effector

Answer: A, C , D & E.

Which of the following are a part of the brainstem ?

Which of the following are a part of the brainstem ?

A. Pons
B. Epithalamus
C. Hypothalamus
D. Medulla oblongata
E. None of the above

Answer: A & D.

Which neuroglia is/are the cells that form the blood brain barrier?

Which neuroglia is/are the cells that form the blood brain barrier?

A. Astrocytes
B. Microglia
C. Ependymal cells
D. Oligodendrocytes
E. Schwann cells

Answer: A

Which neuroglia is/are phagocytes that clear away dead cells?

Which neuroglia is/are phagocytes that clear away dead cells?

A. Astrocytes
B. Microglia
C. Ependymal cells
D. Oligodendrocytes

E. Schwann cells

Answer: B

Which neuroglia is/are responsible for myelination?

Which neuroglia is/are responsible for myelination?

A. Astrocytes
B. Microglia
C. Ependymal cells
D. Oligodendrocytes
E. Schwann cells

Answer: D & E.

Which of the following are structures of the peripheral nervous system?

Which of the following are structures of the peripheral nervous system?

A. Brain
B. Spinal cord
C. Meninges
D. Cranial nerves
E. Spinal nerves

Answer: D & E.

Which of the following are structures of the central nervous system?

Which of the following are structures of the central nervous system?

A. Brain
B. Spinal cord
C. Meninges
D. Cranial nerves
E. Spinal nerves

Answer: A, B & C.

A bleeding wound will eventually form a clot. The top portion of this clot is exposed to air and hardens, forming a _____.

A bleeding wound will eventually form a clot. The top portion of this clot is exposed to air and hardens, forming a _____.

Answer: scab.

The hypodermis contains _______ cells, called lipocytes.

The hypodermis contains _______ cells, called lipocytes.

Answer: fat.

The _______ muscle attach to the hair. When these muscles contract, the hair stands erect.

The _______ muscle attach to the hair. When these muscles contract, the hair stands erect.

Answer: arrector pili.

Red hair is due to altered melanin that contains _______.

Red hair is due to altered melanin that contains _______.

Answer: iron.

The white portion half moon at the base of each nail is called the _______.

The white portion half moon at the base of each nail is called the _______.

Answer: lunula.

The sebaceous glands secrete an oil called _______.

The sebaceous glands secrete an oil called _______.

Answer: sebum.

The cells in the skin that produce pigment are called _______.

The cells in the skin that produce pigment are called _______.

Answer: melanocytes.

The fluid surrounding the brain and spinal cord is called _______.

The fluid surrounding the brain and spinal cord is called _______.

Answer: cerebrospinal fluid.

_______ are the protective membranes that surround the brain and spinal cord.

_______ are the protective membranes that surround the brain and spinal cord.

Answer: meninges.

_______ are cells that carry out all of the control functions for the nervous systems.

_______ are cells that carry out all of the control functions for the nervous systems.

Answer: neurons.

_______ are specialized cells that do all the support activities for the nervous systems.

_______ are specialized cells that do all the support activities for the nervous systems.

Answer: neuroglia cells.

_______ attach bones to each other (attach bone to bone).

_______ attach bones to each other (attach bone to bone).

Answer: ligaments.

_______ are the fibrous tissues that attach muscle to bones.

_______ are the fibrous tissues that attach muscle to bones.

Answer: tendons.

The flexible tissue that acts as a cushion between bones is called _______.

The flexible tissue that acts as a cushion between bones is called _______.

Answer: cartilage.

The thin band of cartilage where bone growth occurs is called the _______.

The thin band of cartilage where bone growth occurs is called the _______.

Answer: growth plate.

The process of bone formation is called _______.

The process of bone formation is called _______.

Answer: ossification.

The _______ is the long, narrow portion of a long bone.

The _______ is the long, narrow portion of a long bone.

Answer: diaphysis.

What are the 7 Levels of Organization ?

What are the 7 Levels of Organization ?

1. Chemical
2. Organelle
3. Cellular
4. Tissue
5. Organs
6. System
7. Organism

What are the 10 Characteristics of Life ?

10 Characteristics of Life are :

1. Responsiveness
2. Conductivity
3. Growth
4. Respiration
5. Digestion
6. Absorption
7. Secretion
8. Excretion
9. Circulation
10. Reproduction

Spinal cord gray matter lateral horns are only found in the ____ region

Spinal cord gray matter lateral horns are only found in the ____ region

a. sacral
b. thoracic
c. cervical
d. lumbar

Answer: B

The blood brain barrier is absent in the

The blood brain barrier is absent in the 

a. thalamus
b. cerebellar arbor vitae
c. hypothalamus
d. cerebral cortex

Answer: C

Which of the following is a disorder where secreting neurons results in a loss of movement and

Which of the following is a disorder where secreting neurons results in a loss of movement and

a. Alzheimer's
b. Huntington's
c. Parkinson's
d.Broca's

Answer: C

What secondary brain vesicle develops into the thalamus?

What secondary brain vesicle develops into the thalamus? 

a. rhombencephalon
b. diencephalon
c. prosencephalon
d. mesencephalon

Answer: C

Cerebral spinal fluid is formed by the

Cerebral spinal fluid is formed by the

a. dural sinus
b. tentorium cerebelli
c. choroid plexus
d. longitudinal fissure

Answer: C

Projection fibers that spread out as they enter the cerebral cortex are called

Projection fibers that spread out as they enter the cerebral cortex are called 

a. corpus callosum
b. filum terminate
c. corona radiata
d. corpus striatum

Answer: C

Which of the following describes spinal cord denticulate ligaments?

Which of the following describes spinal cord denticulate ligaments?

a. bulging area of nerve bundles serving upper/lower limbs
b. collection of nerve roots extending from an intervertebral foramen
c. sawtoothed pia mater secured to dura mater on an adjacent vertebrae

Answer: C

Surface ridges of the cerebral cortex are called

Surface ridges of the cerebral cortex are called

a. sulci
b. fissures
c. gyri
d. furrows

Answer: C

The ____ is the corticospinal tract crossover point that reacts in contralateral limb control

The ____ is the corticospinal tract crossover point that reacts in contralateral limb control

a. nucleus gracilis
b. decussation of pyramids
c. red nucleus
d. substantia nigra

Answer: B

Commissural fibers serve to connect:

Commissural fibers serve to connect:

a. anterior and posterior cerebellar hemispheres
b. same areas of the left and right cerebral hemispheres
c. cerebral cortex with spinal cord
d. different areas of same cerebral hemisphere

Answer: B

What brain lobe cannot be seen from the surface?

What brain lobe cannot be seen from the surface?

a. occipital
b. parietal
c. insula
d. temporal

Answer: C

What is the white matter gray pattern of cerebellum starting from central canal and moving outwards?

What is the white matter gray pattern of cerebellum starting from central canal and moving outwards?

a. gray white
b. gray white gray
c. white gray
d. white gray white

Answer: B

A patient's inability to voluntarily lift their arm would suggest damage to spinal cord

A patient's inability to voluntarily lift their arm would suggest damage to spinal cord 

a. dorsal root
b. sensory neuron
c. ventral root
d. afferent pathway

Answer: C

The cerebral aqueduct is located in between the

The cerebral aqueduct is located in between the 

a. septum pellucidum
b. lateral and medial apertures
c. third and fourth ventricles
d. lateral ventricles

Answer: C

Which of the following represents a typical somatic reflex pathway?

Which of the following represents a typical somatic reflex pathway?

a. receptor > sensory neuron > motor neuron > integration center > effector
b. receptor > integration center > sensory neuron > effector > motor neuron > effector
c. receptor > sensory neuron > integration center > motor neuron > effector
d. receptor > motor neuron > effector >integration center > sensory neuron

Answer: C

Which of the following is an encapsulated sensory receptor

Which of the following is an encapsulated sensory receptor

a. Meissners corpuscle
b. golgi tendon organ
c. Merkels disc
d. muscle spindles

Answer: A

Which of the following is a component of the PNS

Which of the following is a component of the PNS

a. dorsal root
b. filum terminale
c. vestibulospinal tract
d. ventral horn

Answer: A

The brain stem consist of

The brain stem consist of

a. cerebellum, midbrain, medulla
b. midbrain, pons, medulla
c. pons, cerebellum, midbrain
d. midbrain, cerebellum, cerebrum

Answer: B

The brain lateral sulcus separates

The brain lateral sulcus separates

a. temporal from parietal/frontal
b. parietal and occipital
c. frontal and parietal
d. insula and temporal

Answer: A

Which of the following is a function of the cerebellum?

Which of the following is a function of the cerebellum?

a. stores skeletal muscle contraction patterns
b. controls body thermoregulation
c. relays afferent impulse to cerebral cortex
d. major role in cortical arousal

Answer: A

The meningeal dura mater layer is located directly inferior to

The meningeal dura mater layer is located directly inferior to

a. arachnoid mater
b. pia mater
c. periosteal dura mater
d. skull

Answer: C

The brain ____ lobe is responsible for auditory processing and long term memory

The brain ____ lobe is responsible for auditory processing and long term memory 

a. temporal
b. frontal
c. insula
d. occipital





Answer: A

What spinal nerve is the only one to leave its vertebrae inferiorly?

What spinal nerve is the only one to leave its vertebrae inferiorly?

Answer: C8

What target organ is innervated by sympathetic nervous but trunk by parasympathetic nervous

What target organ is innervated by sympathetic nervous but trunk by parasympathetic nervous 

a. adrenal gland
b. pancreas
c. bladder

Answer: A

What cell lines a regeneration tube after peripheral nerve myelination?

What cell lines a regeneration tube after peripheral nerve myelination?

a. fibrocyte
b. macrophages
c. schwann cells
d. oligodendrocytes

Answer: C

The patellar reflex is classified as a ____ reflex

The patellar reflex is classified as a ____ reflex

Answer: stretch

Motor ___ nerve fibers carry impulses away from central nervous system.

Motor ___ nerve fibers carry impulses away from central nervous system. 

a. efferent
b. projection
c. afferent

Answer: A

Which ANS division functions to conserve energy drinks?

Which ANS division functions to conserve energy drinks?

Answer: parasympathetic

Parasympathetic fibers leave the spinal cord in the ____ and exhibit ___ preganglionic fibers

Parasympathetic fibers leave the spinal cord in the ____ and exhibit ___ preganglionic fibers

a. thoracolumbar/short
b. crainiolumbar/long



Answer: B

What effect does the neurotransmitter have when it binds to a skeletal muscle nicotine receptor?

What effect does the neurotransmitter have when it binds to a skeletal muscle nicotine receptor?

a. neither stimulatory nor inhibitory
b. stimulatory
c. inhibitory
d. either stimulatory inhibitory

Answer: B

The main integration center for autonomic nervous center activity is

The main integration center for autonomic nervous center activity is

a. cerebral cortex
b. hypothalamus
c. thalamus
d. cerebellum





Answer: B

Which of the following indicates cranial nerves I, II, VII, and X listed in order?

Which of the following indicates cranial nerves I, II, VII, and X listed in order?

Answer: olfactory, optic, facial, vagus

What tough outer connective tissue sheath surrounds the entire nerve?

What tough outer connective tissue sheath surrounds the entire nerve?

Answer: epineurium

A spinal nerve dorsal root contains ____ fibers

A spinal nerve dorsal root contains ____ fibers

a. visceral afferent
b. somatic motor
c. visceral efferent
d. visceral motor

Answer: A

A painful stimulus would be detected by?

A painful stimulus would be detected by?

a. nociceptors
b. osmoreceptors
c. proprioceptors

Answer: A

All autonomic nervous system preganglionic axons release?

All autonomic nervous system preganglionic axons release?

a. dopamine
b. norepinephrine
c. acetylcholine
d. adrenaline

Answer: C

What effect would full cutting of a spinal nerves ventral root in the body serve?

What effect would full cutting of a spinal nerves ventral root in the body serve?

a. a complete loss of sensation
b. a complete loss of voluntary movement
c. neither a loss of sensation nor voluntary movement
d. a complete loss of both sensation and voluntary movements

Answer: B

Which of the following is an effector (target organ) that is not directly controlled by autonomic nervous system?

Which of the following is an effector (target organ) that is not directly controlled by autonomic nervous system?

a. smooth muscle
b. cardiac muscle
c. skeletal muscle
d. arrector pili muscle

Answer: C

Which of the following is not a true statement about the autonomic nervous system?

Which of the following is not a true statement about the autonomic nervous system?

a. branch of peripheral nervous system motor division
b. self-regulating
c. effectors are mostly under voluntary control
d. controls the actions of many visceral organs

Answer: C