BIOL 235 Chapter 15 Quiz with correct solutions | Latest 2023/2024

BIOL 235 Chapter 15 Quiz with correct solutions | Latest 2023/2024 Somatic Nervous System -- Portion of the PNS consisting of somatic sensory (afferent) neuros and somatic motor neurons (efferent). Interoceptors -- Sensory receptor located in blood vessels and viscera that provides information about the bodies internal environment ex) Chemorecpetors, mechanoreceptors Autonomic Motor Neurons -- Regulate visceral activities by either increasing (existing) or decreasing (inhibiting) ongoing activities in the effector tissues. ex) Change in the diameter of pupils, dilation/constriction of blood vessels. Autonomic Motor pathway -- 2 motor neurons in series. 1st has cell body in CNS, myelinated axon extends from the CNS to autonomic ganglion. 2nd cell body is in the same autonomic ganglion to the effector, unmyelinated axon extends directly from ganglion to the effector. Autonomic Ganglion -- A cluster of cell bodies of sympathetic or parasympathetic neurons located outside the CNS. Sympathetic Division -- Fight or Flight response It is a response to physical activity, emotional stress. These activities result in an increase alertness and metabolic activities in order to prepare the body for an emergency. Parasympathetic Division -- Rest and Digest response