The sebaceous glands of the skin secrete sebum, which:
A. keeps the skin soft and prevents cracking.
B. kills microorganisms on the skin surface.
C. allows the body to cool itself through sweating.
D. contracts the muscles that pull hair into an erect position.
Answer: A. keeps the skin soft and prevents cracking.
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Typically, cervical disc herniation:
A) results from forcible hyperextension. B) affects the spinal nerve exiting at the level of the affected disc (C5 nerve affected with C4/C5 disc herniation). C) is associated with vertebral body fracture. D) is associated with osteoarthritis of the facet joints. E) is associated with rupture of the ligamentum flavum.
Answer the following questions true (T) or false (F)
1. All cranial nerves are considered mixed nerves. 2. The first pair of cranial nerves is the optic nerve (I). 3. The trigeminal nerve (V) has three nerve branches: optic nerve, maxillary nerve, and oculomotor nerve.
Twenty-year-old Leslie learned she is hyperopic after having her eyes examined. What best describes her eye condition?
A) Her eyeball shape is normal. B) Her eyeballs are too short. C) Her eyes are experiencing age-related decline. D) Her eyeballs are too long.
Which of the following enzymes digests protein?
A. bile B. pepsin C. isomaltose D. sucrase E. lipase