Which one of the following represents the proper sequence of hemostasis?
A) platelet plug formation, coagulation, vascular spasm
B) vascular spasm, coagulation, platelet plug formation
C) coagulation, vascular spasm, platelet plug formation
D) vascular spasm, platelet plug formation, coagulation
E) coagulation, platelet plug formation, vascular spasm
D
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Of the CO2 returning from the tissues in venous blood, more is dissolved in plasma as CO2 than is bound to hemoglobin.
Answer the following statement true (T) or false (F)
The parathyroid hormone:
a. has the opposite effect of calcitonin b. is made in the thyroid gland c. causes a decrease in blood concentration of calcium d. all of the above
Which of the following is not true of the enteric nervous system?
A. It has its own reflex arcs. B. Some of the fibers arise in the brainstem. C. Neurons are embedded in the wall of the digestive tract. D. It regulates motility of the esophagus, stomach, and intestines. E. It innervates smooth muscles and glands.
When a fracture begins to heal, one type of bone cell moves into the fracture site and tears down the damaged bone tissue. Which of the following does this?
A. Osteoclasts B. Osteons C. Matrix cells D. Osteocytes E. Osteoblasts