What vessel(s) deliver oxygenated blood to the left atrium?
A) aorta B) pulmonary trunk
C) pulmonary arteries D) pulmonary veins
Answer: D
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DNA molecules are in the nucleus
A. complexed with protein, forming chromatin fibers. B. complexed with protein, forming nucleoli. C. complexed with protein on the nuclear envelope. D. as free molecules.
Edith suffers from severe heartburn. She goes to her physician and is diagnosed with a hiatal hernia. This condition affects her
A. small intestine. B. stomach wall. C. abdominal wall. D. diaphragm.
A decrease in metabolism without a similar, compensatory decrease in alveolar ventilation will have what effect on the systemic pH?
A. No change to pH is expected in this circumstance. B. It is impossible to predict the effect on pH without first understanding why metabolism decreased. C. pH will increase. D. pH will decrease.
A heavyset middle-aged insurance salesman, who doesn't exercise often, accepts his friend's invitation to a pickup basketball game. When attempting a jump shot, he falls to the ground in pain, grasping at the calf of his leg. There is an enormous bulge in his leg immediately below the popliteal fossa, and he is unable to plantar flex that foot. Most likely he has injured his __________ and the bulge is __________.
A. quadriceps tendon; his rectus femoris B. calcaneal tendon; his triceps surae C. patellar ligament; his fibularis longus D. tibia; a previously undetected bone tumor E. hamstrings; a large hematoma (blood clot)