CNS TERMS

Question 1

Autonomic nervous system (ANS)

Answer 1

Sensory input from the viscera and blood vessels, and motor output to involuntary effectors (cardiac muscle,smooth muscle,glands)

Question 2

Axon

Answer 2

Single long process of a neuron that conducts nerve impulses way from the cell body.

Question 3

Cortex

Answer 3

thin, superficial layer of gray matter that covers the cerebrum and cerebellum.

Question 4

Dendrites

Answer 4

Highly branched processes of a neuron that carry impulses to the cell body (main receiving or input region)

Question 5

Enteric plexus

Answer 5

Network of neurons in the wall of the gastrointestinal (GI) tract.

Question 6

Fasciculus (fascili:pl)

Answer 6

Axon bundles of nerve.

Question 7

Ganglion (ganglia:pl)

Answer 7

Cluster of cell bodies and the synaptic region for neurons located in the PNS.

Question 8

Gray matter

Answer 8

Contains cell bodies, dendrites, axon terminals of neurons, unmyelinated axons, and nueroglia.

Question 9

Interneurons (associated neurons)

Answer 9

Multipolar neurons located within the CNS that integrate incoming sensory information to elicit a motor response

Question 10

Motor (efferent) neurons

Answer 10

Multipolar neurons, convey impulses from the CNS out through the PNS to effectors (“involuntary” muscle or glands)

Question 11

Nerve

Answer 11

Bundle of axons in the PNS

Question 12

Nucleus

Answer 12

Cluster of cell bodies and the synaptic region for neurons located in the CNS

Question 13

Neuroglia

Answer 13

Cells that support, nourish, and protect neurons.

Question 14

Neurons

Answer 14

Nervous tissues cells that fe specialized for nerves impulse conduction.

Question 15

Parasympathetic Division:

Answer 15

Division of the ANS that performs our housekeeping activities and conserves energy (“rest and digest”)

Question 16

Perception

Answer 16

Our awareness of sensory input (stimuli)

Question 17

Sensory (afferent) neurons

Answer 17

Unipolar (pseudo-unipolar ) neurons , convey stimuli impulses to the CNS for integration.

Question 18

Sensory receptor

Answer 18

Monitor and transduce changes in our internal and external environment.

Question 19

Spinal cord

Answer 19

Frau matter forms an H-shaped inner core surrounded by white matter.

Question 20

Soma

Answer 20

Cell body of neurons that contain he typical organelles plus chromatiphilic (NISSL) bodies

Question 21

Somatic nervous system (SNS)

Answer 21

Sensory input from the head, body walls, limbs, and special sense organs and motor output to “voluntary” skeletal muscles.

Question 22

Sympathetic division

Answer 22

Division of the ANS that is activated under stressful situations (“fight or flight”)

Question 23

Tract

Answer 23

Bundle of axons in the CNS

Question 24

White matter

Answer 24

Aggregates of myelinated axons