Which of the following would not lead to polycythemia?
A. Dehydration
B. Cancer of the erythropoietic line of the red bone marrow
C. Excessive aerobic exercise
D. Emphysema
E. Iron deficiency
Answer: E
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Concentric contractions occur when
A. the muscle produces increasing tension as it shortens. B. the tension and length of the muscle remain constant during a contraction. C. the muscle produces tension while the length of the muscle increases. D. tension in a muscle is maintained while the muscle increases in length. E. isometric contractions occur.
Blood vessels and nerves travel in a marking of each rib known as its costal ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following movements could occur at the hip joint?
A) All of the above B) Flexion and extension C) Rotation D) Abduction and adduction
Neurons synapsing on the hair cells of the maculae and the crista ampullaris have cell bodies in the ________.
A. medial geniculate nucleus B. vestibular ganglion C. superior olivary nucleus D. cochlear ganglion E. superior colliculus