What event(s) occur to start puberty?
A. Glutamate stimulation of the hypothalamus is increased.
B. GABA release in hypothalamus is reduced.
C. Secretion of GnRH to the anterior pituitary increases.
D. All of the choices are correct.
Answer: D
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A fall or an improperly delivered gluteal injection could result in ________
A) sciatica B) neurofibromatosis C) postpoliomyelitis muscular atrophy D) phantom limb pain
According to the most current model of the plasma membrane,
A. cholesterol forms the innermost layer of the membrane. B. the membrane is a rigid unchanging structure. C. proteins are free to move about within a double layer of phospholipids. D. phospholipids and cholesterol form a single lipid bilayer. E. the membrane is impermeable to all other molecules.
Identify the statement that best differentiates gray matter and white matter
A. Gray matter consists of bundles of axons and white matter consists of groups of cell bodies and dendrites. B. Gray matter consists of all parts of neurons and white matter is mostly glial cells. C. Gray matter consists of cell bodies and dendrites whereas white matter consists mostly of myelinated axons
Which statement is true?
a. the autonomic nervous system has no effect on the heart b. the AV node can generate electrical impulses just as quickly as the SA node c. If the pacemaker of the heart fails, then heart will stop beating d. if the pacemaker of the heart stops, the AV node will take over