The most common bone disease is ________
A) osteomalacia
B) osteosarcoma
C) rickets
D) osteomyelitis
E) osteoporosis
E
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Which of the following cells secretes pepsinogen?
a) A b) B c) C d) D e) E
The prevention of change, by ignoring minor variations and maintaining a normal range rather than a fixed value, is characteristic of
A) positive feedback. B) stimulus reinforcement. C) negative feedback. D) effector control. E) both positive and negative feedback loops.
Which statement about secretin is correct?
a. The most potent stimulus for its secretion is the presence of fat in the duodenum. b. It stimulates pancreatic enzyme secretion. c. It stimulates the secretion of bicarbonate. d. It stimulates the pancreatic acinar cells. e. None of the above
Explain the relationship between load and speed of muscle contraction
A) The greater the load on a muscle, the longer it takes for the muscle to shorten, and the less it shortens. B) The greater the load on a muscle, the longer it takes for the muscle to shorten, and the more it shortens. C) The greater the load on a muscle, the less time it takes for the muscle to shorten, and the less it shortens. D) The greater the load on a muscle, the less time it takes for the muscle to shorten, and the more it shortens. E) There is no relationship between load and speed of muscle contraction.