Tears

A. are very acidic and kill microbes.
B. contain lysozyme to trap dust.
C. wash foreign objects away from the eye.
D. contain little water.
E. are produced only when a person cries.


Answer: C

Anatomy & Physiology

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A) divide the nasal cavity into a right and a left side. B) provide an opening into the pharynx. C) provide a increase in surface area for the sense of smell. D) create turbulence in the air to trap particulate matter in mucus. E) provide an opening to paranasal sinuses.

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When sodium channels open during an action potential, the opening is caused by

A) binding of sodium ions. B) presence of positive charge. C) presence of calcium. D) binding of potassium ions.

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The white matter of the brain derives its color from myelin.

Answer the following statement true (T) or false (F)

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The small intestine is suspended from the abdominal wall by the ________.

A. falciform ligament B. mesentery C. lesser omentum D. greater omentum E. esophageal hiatus

Anatomy & Physiology