Describe the endocrine regulation of bone growth.
What will be an ideal response?
Bone growth is regulated by many hormones, including growth hormone, insulin-like growth factor, sex steroids,
and hormones that regulate calcium metabolism.
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What is the action of the gluteus maximus?
A. It provides propulsion by extending the knee during walking. B. It acts in climbing the stairs by extending the thigh. C. It adducts the thigh to stabilize the trunk over the hip. D. It medially rotates the thigh for hip stability while walking. E. It pulls the trunk forward over the pelvis.
Adipose tissue
A. is composed of relatively small cells. B. does not contain lipids. C. contains large amounts of extracellular matrix. D. functions as an insulator and a site of energy storage. E. exists in three forms: yellow, red, and brown.
Polar bears have black skin. This characteristic helps them deal with cold stress by
a. increasing the amount of air trapped next to the skin. b. increasing the absorption of radiant energy from the sun. c. increasing the insulation provided by subcutaneous fat. d. reducing heat loss by restricting blood flow to the skin.
There are ________ prevertebral ganglia.
A. 5 B. 3 C. 2 D. 12 E. 4