When ice skating at Rockefeller Center, a young skater got thoroughly chilled. Which of his body's reaction to the cold gave him "goose pimples?"
A) Contraction of erector muscles in his skin
B) His skin hairs pulling his skin muscles together
C) Dehydration of his skin surface by cold
D) Faster subcutaneous blood flow
A
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The ligament that encloses the ________ attaches to the tibial tuberosity
A) head of the femur B) greater trochanter C) medial malleolus D) lesser trochanter E) patella
The fixed point around which a lever rotates is the
A. fulcrum. B. condyle. C. resistance node. D. effort arm. E. multiaxis.
The largest pure endocrine gland in the body is the ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements concerning blood vessel walls is true?
A. The tunica intima is the innermost layer of a blood vessel wall. B. The tunica media is found in all blood vessels except veins. C. The tunica adventitia is composed of smooth muscle and endothelium. D. Capillaries have both a tunica intima and a tunica media. E. Vessel diameter is controlled primarily by the tunica intima.