The _______ muscle attach to the hair. When these muscles contract, the hair stands erect.
Answer: arrector pili.
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Anatomy
- Where is foramen lacerum? What goes through it?
- What is the position of the superior orbital fissure?
- What goes through foramen ovale?
- What goes through foramen rotundum?
- Where does each maxillary sinus drain?
- Where does the sphenoid sinus drain?
- What important structure lies laterally on either side of the sphenoidal sinus?
- What important structures lie above the sphenoidal sinus? (2)
- What is the pattern of drainage of the ethmoidal air cells?
- Where does each frontal sinus open?
- What are the two main functions of the aqueous humour?
- What is the average aqueous humour production rate?
- What is the average volume of the AC
- What is the average central AC depth?
- What are zonules made of?
- Where do the zonules arise from?
- How are superficial lens fibres (elongated lens cells) different from deeper fibres?
- Where is the maximal mitotic activity of the lens epithelium?
- How do the lens epithelial cells change going from centre to equator?
- Where is the lens epithelium found?
- What type of epithelium is the lens epithelium?
- What is the lens capsule made of?
- What are the three parts of the lens?
- What are 1) the average lens diameter and 2) the lens axial length in the adult?
- Testosterone, progesterone and estrogen are all derived from
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