The following questions refer to the accompanying diagram of arteriole vasoconstriction and vasodilation. The diagram shows three state of arteriole tone. The top image labeled "A," shows normal tone. The other two panels labeled "B" and "C" show different state of arteriole tone. Match the statements below with the correct arteriole using A, B, and C.
-Increased resistance
Definitions:
Afferent
Relating to or denoting nerve fibers that carry sensory information toward the central nervous system.
Efferent
Referring to nerve fibers that carry signals away from the central nervous system to the peripheral effectors, such as muscles or glands.
Midbrain
A portion of the central nervous system associated with vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation.
Gray Matter
The darker-colored regions of the brain and spinal cord consisting mainly of neuronal cell bodies and branching dendrites.
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