Air flow through the smaller bronchioles can be adjusted by varying the contractile activity of the smooth muscle within their walls
Indicate whether the statement is true or false
T
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A thrombus (blood clot) in the first branch of the arch of the aorta would affect the flow of blood to the ________
A) left upper arm B) myocardium of the heart C) left side of the head and neck D) right side of the head and neck and right upper arm
The neuromuscular junction
a. is the junction between a motor neuron and a skeletal muscle fiber. b. transmits an action potential between the nerve cell and muscle cell on a one-to-one basis. c. may produce either an EPSP or an IPSP on the motor end plate. d. both (a) and (b) above. e. all of these answers.
Hemophilia is ________.
A. results in excessive blood clots B. more prevalent in women C. an X-linked trait D. All of the choices are correct.
Gap junctions are characteristic of which of the following?
A. Neuromuscular junctions B. Multiunit smooth muscle C. Single-unit smooth muscle D. Skeletal muscle E. Tendon-bone connections