Degeneration of the neurons in which of the following structures leads to the muscle tremors associated with Parkinson disease?
A. Cerebral crus
B. Inferior colliculi
C. Pons
D. Tegmentum
E. Substantia nigra
Answer: E
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The peroneal or trochlear process is on the
A. lateral calcaneus. B. medial calcaneus. C. posterior calcaneus. D. superior calcaneus.
More than one ________ combines to increase complexity and promote the level of organization to the organ level.
Fill in the blank(s) with the appropriate word(s).
Gas exchange at the respiratory membrane is efficient because
A. the difference in partial pressures is substantial. B. the distances involved in exchange are small. C. the total surface area of the membrane is large. D. blood flow and air flow are coordinated (blood flow is highest around alveoli with highest Po2). E. All of these are correct.
A tennis player complains of severe pain in the shoulder when serving or returning an overhead volley. Which of the rotator cuff muscles is probably damaged?
A. Infraspinatus B. Deltoid C. Teres major D. Supraspinatus E. Subscapularis