If a cell doubled in diameter, it would have twice as much cytoplasm to maintain.
Indicate whether the statement is true or false
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Question 2) 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) patellar ligament; his fibularis longus
C) calcaneal tendon; his triceps surae
D) tibia; a previously undetected bone tumor
E) hamstrings; a large hematoma (blood clot)
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Question 3) Normally, the systemic arterial blood has a Po2 of ________ mm Hg, a Pco2 of ________ mm Hg, and a pH of ________.
A) 7.4; 40; 95 B) 40; 7.4; 95 C) 95; 40; 7.4 D) 95; 7.4; 40 E) 40; 95; 7.4
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Question 4) Why are pregnant Rh- women given an injection of Rh immune globulin?
A) Antibodies in the injection bind fetal RBC antigens so they cannot stimulate her immune system to produce anti-A antibodies.
B) Antibodies in the injection bind fetal RBC antigens so they cannot stimulate her immune system to produce anti-O antibodies.
C) Antibodies in the injection bind fetal RBC antigens so they cannot stimulate her immune system to produce anti-B antibodies.
D) Antibodies in the injection bind fetal RBC antigens so they cannot stimulate her immune system to produce anti-D antibodies.
E) Antibodies in the injection bind fetal RBC antigens so they cannot stimulate her immune system to produce anti-A and anti-B antibodies.
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Question 5) A male sustains a crushing injury to his foot. After weeks of care, he begins to notice that he cannot bend the little toe on his right foot. Which of he following would be a logical diagnosis?
A) Atrophy of the adductor hallucis
B) Atrophy of the flexor hallucis brevis
C) Atrophy of the fibularis brevis
D) Atrophy of the flexor digiti minimi
E) Atrophy of the soleus
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Question 6) Aerobic respiration is more efficient than anaerobic fermentation, but the latter is oxygen-independent.
Indicate whether the statement is true or false
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Question 7) Why do pregnant women often have heartburn?
A) As the uterus enlarges it pushes upward on the stomach, causing gastric reflux.
B) Elevated levels of estrogens cause morning sickness.
C) The mother's body is purging itself of toxins to protect the fetus.
D) There is reduced intestinal motility.
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Question 8) Loss of equilibrium and motor coordination would most likely be related to a lesion in which structure?
A) Pituitary gland
B) Medulla oblongata
C) Cerebellum
D) Limbic system
E) Pons
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Question 9) Each hemoglobin molecule can transport up to ________ oxygen molecules.
A) 2 B) 6 C) 5 D) 3 E) 4
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Question 10) A clinician induces contraction of the gastrocnemius and soleus and notices that the foot does not plantar flex as expected. Which of the following would be a logical diagnosis?
A) Shinsplints
B) Peroneal nerve injury
C) Ruptured calcaneal tendon
D) Lateral plantar nerve injury
E) Anterior compartment syndrome
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