VPHY 3100 Ch 9

VPHY 3100 Ch 9
The ____ nervous system includes both the CNS and the PNS - ANSWERSAutonomic


There are 12 pairs of (cranial/spinal) nerves in the PNS - ANSWERScranial


There are 31 pairs of (cranial/spinal) nerves in the PNS - ANSWERSspinal


(Cranial/Spinal) nerves exit the brain in the PNS - ANSWERSCranial


(Cranial/Spinal) nerves exit the spinal cord in the PNS - ANSWERSSpinal


The ____ is the region of the brain that is considered to be the command central of the ANS -
ANSWERShypothalamus


The (autonomic/somatic) nervous system regulates cardiac muscle, smooth muscle, and glands -
ANSWERSautonomic


The (autonomic/somatic) nervous system controls involuntary visceral organs & blood vessels -
ANSWERSautonomic


The central control for the (autonomic/somatic) nervous system is the frontal cortex and subcortical
structures - ANSWERSsomatic


The central control for the (autonomic/somatic) nervous system is the hypothalamus, brain stem, and spinal
cord - ANSWERSautonomic


Name the 3 parts of the body that are the control center for the ANS - ANSWERS1. Hypothalamus
2. Brain stem
3. Spinal cord

, Name the 2 parts of the body that are the control center for the somatic nervous system - ANSWERS1. Frontal
cortex
2. Subcortical structures


The (autonomic/somatic) nervous system is responsible for monitoring our internal organs -
ANSWERSautonomic


(Afferent/Efferent) neurons of the ANS and SNS reach their target cells differently - ANSWERSEfferent


For ANS motor neurons, the impulses must pass through an autonomic ganglion, which causes the ANS motor
neurons to have _____ innervation of target tissues - ANSWERSpair-wise


For ANS motor neurons, the passing of impulses through the autonomic ganglion creates a _____ fiber that
runs into the autonomic ganglion and a _____ fiber that runs out of the autonomic ganglion -
ANSWERSpreganglionic; postganglionic


(Autonomic/Somatic) motor neurons are transmitted by pre and postganglionic neurons -
ANSWERSAutonomic


(Autonomic/Somatic) motor neurons are transmitted by the ventral root ganglion - ANSWERSSomatic


Somatic motor neurons are transmitted to their target regions via the _______ - ANSWERSventral root
ganglion


Impulses from the (autonomic/somatic) motor neurons travel to smooth muscle cells - ANSWERSsomatic


Impulses from the (autonomic/somatic) motor neurons travel to organ tissues (viscera) - ANSWERSautonomic


For ANS motor neurons, the neurons always have (excitatory/inhibitory) connections by the neurotransmitter
_____ - ANSWERSexcitatory; acetylcholine (ACh)