Which of the following statements is true?
A. Parasympathetic stimulation causes bronchodilation
B. Decreased pCO2 stimulates the pneumotaxic area to cause inspiration
C. Sympathetic stimulation causes bronchodilation
D. Increased temperature increases oxygen’s affinity for hemoglobin
Answer: C. Sympathetic stimulation causes bronchodilation
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How do sex hormones affect bone growth?
A) Testosterone stimulates osteoclast activity. B) They cause ossification to be faster than cartilage replacement. C) They stimulate the cleavage of hydroxyapetite. D) They cause osteoporosis. E) Estrogen causes slower epiphyseal closure.
During precortical processing of sensory input, some features of stimuli are accentuated and others are suppressed through ____
a. precortical filtering b. desensitization c. cortical damping d. medial inhibition e. lateral inhibition
Which portion of the small intestine is most distal from the pylorus of the stomach?
A. Hepatopancreatic ampulla B. Jejunum C. Duodenum D. Ileum E. Common bile duct
What may happen if the ductus arteriosus fails to close shortly after birth?
A. Blood may flow from the right atrium to the left atrium. B. The walls of the heart may become thin and flaccid. C. Blood may flow from the aortic arch to the lungs. D. The coronary arteries may have abnormally increased blood flow. E. Valvular stenosis may interrupt blood flow.