Identify the hormone that stimulates the release of calcium ions from bone matrix. Explain its mechanism of action
A) parathyroid hormone; increases osteoblast break down of bone matrix
B) parathyroid hormone; increases osteoclast break down of bone matrix
C) calcitonin; increases osteoblast break down of bone matrix
D) calcitonin; increases osteoclast break down of bone matrix
E) cholecalciferol; increases osteoblast break down of bone matrix
Answer: B
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Exudate is
A. blood that escapes capillaries, passes beyond the skin and leaves the body. B. increased perfusion of capillary beds within the region of an injury. C. lymph that flows away from the heart and toward the site of an injury. D. fluid that leaves capillaries to "wash" the interstitial space of an injured tissue. E. clotting proteins that wall off microbes and prevent them from spreading through the bloodstream.
Lymph returns to the blood by way of the:
a. aorta b. thoracic duct c. superior vena cava d. inferior vena cava
Type of digestive system characterized by a single simple stomach
a. ruminant c. monogastric b. nonruminant d. avian
What do the following statements have in common: dehydration, hypoxia, bleeding, and increased erythrocyte production?
A) They are all causes of polycythemia. B) They are all causes of anemia. C) They are all associated with normal hematocrit levels. D) They are not associated with hematocrit levels in the human body.