In response to action potential arriving from the transverse tubules
A. the sarcoplasmic reticulum accepts ion
B. the sarcoplasmic reticulum releases calcium ions.
C. the sarcoplasmic reticulum releases potassium ions.
D. None of the above
B. the sarcoplasmic reticulum releases calcium ions.
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What is the function of elastic fibers in the skin?
A. Strength B. Extensibility C. Elasticity D. Cushioning
Which is more efficient in propelling intestinal contents along the digestive tract: peristalsis or segmentation? Why?
A) segmentation; because it involves pushing the bolus forward B) segmentation; because it involves mixing and churning C) peristalsis; because it involves pushing the bolus forward D) peristalsis; because it involves mixing and churning E) both segmentation and peristalsis are equally effective at propelling intestinal contents along the digestive tract
An increased firing of the parasympathetic nervous system causes increased cardiac output
Indicate whether the statement is true or false
Which of the following structures contains the other four items listed?
A. Presynaptic terminal B. Neuromuscular junction C. Receptors on postsynaptic membrane D. Postsynaptic membrane E. Synaptic cleft