In bone, the calcium phosphate forms crystals of
A) osteoid matrix.
B) calcium carbonate.
C) hydroxyapatite.
D) calcitriol.
E) proteolytic enzymes.
C
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The absorptive state occurs
A. about 12 hours after a meal, when you are sleeping. B. from when you are eating until about 4 hours after the meal.
Compared to water, whole blood is
A) cohesive. B) about five times more viscous. C) sticky. D) resistant to flow. E) All of the answers are correct.
Which of the following types of membrane is found in closed cavities in the body?
a. Cutaneous membranes. b. Serous membranes. c. Mucous membranes. d. Connective tissue membranes.
Which of the following is an example of adaptation of sensory receptors?
A. Being aware of our body parts at all times B. Continual monitoring touch signals C. Ignoring the presence of clothes