Endorphins and enkephalins
a. are endogenous morphine-like substances
b. are important in the body's natural analgesic system
c. stimulate the release of substance P by binding with opiate receptors
d. exhibit both a and b characteristics
e. exhibit both a and c characteristics
D
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The folds of the surface of the cerebellum
A) are called folia and are less prominent than the cerebral folds. B) form a network of blood vessels over the brain. C) consist of axons and dendrites of neurons. D) are bathed in spinal fluid. E) are called sulci.
Name and briefly define the four routes by which heat is transferred between an animal and its environment
What will be an ideal response?
During excitation-contraction coupling,
a. the action potential travels down the T tubules b. Ca2+ is released from the sarcoplasmic reticulum c. Ca2+ is taken up by the sarcoplasmic reticulum d. both a and b occur e. both a and c occur