What is the role of serotonin in the digestive tract?
A. decreased nausea
B. stimulates motility
C. hormone release
D. inhibits motility
B
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Define joint ill
What will be an ideal response?
Which of the following would NOT lead to an increase in the strength and compression resistance of a connective tissue?
A) Increase the number of collagen fibers in the matrix. B) Decrease the number of collagen fibers in the matrix. C) Increase the concentration of proteoglycans in the ground substance. D) Align the fibers in the matrix in direction of most stress or force. E) All of these would increase the strength and compression resistance of a connective tissue.
Vestibular neurons transmit nerve impulses along the vestibulocochlear nerve to all of the following sites except
A. the cerebrum. B. the cerebellum. C. the brainstem. D. the thalamus. E. All of these sites are destinations for neural information from the vestibular neurons.
An eccentric contraction is described as
A. action potential frequency is high enough that no relaxation of muscle fibers occurs. B. a muscle produces constant tension during contraction. C. a muscle produces an increasing tension during contraction. D. a muscle produces increasing tension as it shortens. E. a muscle produces tension, but the length of the muscle is increasing.