Which of the following statements concerning hair is false?
A) The medulla is the soft core of the hair.
B) The cortex of the hair is composed of hard keratin.
C) Terminal hairs are heavy and more darkly pigmented than other types of hair.
D) Club hair is hair that has ceased growing.
E) Scalp hairs grow constantly throughout life.
E
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Milk production from mammary glands is an example of what type of secretion?
A) merocrine B) holocrine C) apocrine D) serous E) endocrine
Select the correct statement about oxygen transport in blood:
A) During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O2. B) During conditions of acidosis, hemoglobin is able to carry oxygen more efficiently. C) Increased BPG levels in the red blood cells enhance oxygen-carrying capacity. D) A 50% oxygen saturation level of blood returning to the lungs might indicate an activity level higher than normal.
A synovial membrane
A) secretes serous fluid. B) is very thick with many layers of cells. C) secretes synovial fluid. D) secretes mucus.
Taste buds are monitored by cranial nerves
A) IX, X, and XI. B) VII, VIII, and IX. C) VII, IX, and X. D) V, VII, and IX. E) IX, XI, and XII.