Which statement correctly describes the function of the pulmonary artery?
A) The pulmonary artery carries blood to be oxygenated in the lungs.
B) The pulmonary artery returns oxygenated blood to the heart.
C) The pulmonary artery carries deoxygenated blood back to the heart.
D) The pulmonary artery brings oxygen and nutrients to the lung tissue.
Answer: A
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How would an elevated level of thyroid hormone in the body affect skeletal muscles?
A) It would stimulate atrophy. B) It would stimulate hypertrophy. C) It would stimulate energy use and heat production. D) It would decrease heat production by muscle tissue. E) It would cause an increase in muscle mass.
This figure illustrates the microscopic anatomy of spongy bone. What bone feature does number 4 indicate?
A. Osteocyte in lacuna B. Trabeculae C. Osteon D. Canaliculus E. Perforating canal
The chemical and mechanical processes of food breakdown are called ________.
A) digestion B) absorption C) ingestion D) secretion
At any given moment, the systematic circulation contains about __________ percent of the total blood volume.
a. 10 b. 51 c. 71 d. 84