Neurological System

Question 1

What are the two types of Neural Tissue?

Answer 1

neurons and neurological cells

Question 2

What are the two divisions of the Nervous System?

Answer 2

Central and Peripheral

Question 3

What does the CNS consist of?

Answer 3

brain and spinal cord

Question 4

What do the PNS consist of?

Answer 4

cranial nerves and spinal nerves

Question 5

What are the functions of the Nervous System?

Answer 5

Sensory (PNS), Integrative (CNS), and Motor (PNS)

Question 6

What is the Sensory Function?

Answer 6

sensory receptors gather information and send it to the CNS

Question 7

What is the Integrative Function?

Answer 7

the information is gathered to create sensations, memories, thoughts, and decisions

Question 8

What is the Motor Function?

Answer 8

decisions are acted upon and impulses are carried to effectors (muscles or glands)

Question 9

Somatic functions

Answer 9

carries info to skeletal muslce

Question 10

Autonomic functions

Answer 10

carries info to smooth muscle, cardiac muscle, and glands

Question 11

Cell Body?

Answer 11

includes cytoplasm and a nucleus, from which the nerve fibers extend

Question 12

Dendrites?

Answer 12

process of a neuron that receives input from other neurons (the branches)

Question 13

Axon?

Answer 13

a slender, cylindrical process that conducts impulses away a neuron cell body; the long strip between the two ends

Question 14

Chromatophillic Substance (Nissl bodies)?

Answer 14

packets of rough endoplasmic reticulum; the little dots in the cell body

Question 15

Neurofibrils

Answer 15

network of threads that support axons; in the middle of the myelin

Question 16

Axonal hillock

Answer 16

slight elevation of the cell body from which the axon arises

Question 17

Axon terminal

Answer 17

the specialized end of an axon

Question 18

Synaptic Knob

Answer 18

enlargement at the end of an axon that secretes neurotransmitter

Question 19

Synaptic cleft (synapse)

Answer 19

narrow space between neurons

Question 20

Nodes of Ranvier

Answer 20

narrow gaps in the myelin sheath between Schwann Cells

Question 21

Myelin

Answer 21

• the cylinder things along the axon

- made of Schwann cells

Question 22

White Matter

Answer 22

contains myelinated axons, in the middle of myelin

Question 23

Gray Matter

Answer 23

contains unmyelated axons, in cell bodies and dendrites

Question 24

Unipolar

Answer 24

one process (axon)

Question 25

Bipolar

Answer 25

two processes (dendrite and axon)

Question 26

Multipolar

Answer 26

many processes (2+ dendrites, 1 axon)