Intro to Neuro DOCX

Question 1

What is gray matter?

Answer 1

Consists of nerve cell bodies & neuroglia.

Has cerebral cortex and Nuclei.

Question 2

Cerebral Cortex is

Answer 2

Brain bark, is multiple layers of nerve cell bodies & neuroglia that form a sheeh

Question 3

Nuclei

Answer 3

A nucleus is a collection of nerve cell bodies & neuroglia w/in the CNS

Question 4

What is white matte?

Answer 4

Consist mainly of myelinated nerve cell axons & neuroglia.
Also has tracts, peduncles & commisures.

Question 5

Tracts in the NS are

Answer 5

Bundle of axons
Fasiculus - bundle
Lemniscus - ribbon
Brachium - arm

Question 6

Peduncle is

Answer 6

Foot like process

Question 7

Commisures are

Answer 7

Decussating/crossing axons
Anterior
Posterior 
Olfactory
Corpus callosum

Question 8

Cutaneous n.

Answer 8

skin receives sensory & autonomic inn.

Question 9

Nerve fiber

Answer 9

refers to a dendrite or axon of a neuron

Question 10

Pathways of NS

Answer 10

2 or 3 neurons relay particular information of modalities or motor fx

Question 11

Sensory p/w

Answer 11

relays sensory input

Question 12

Motor p/w

Answer 12

Brain to muscle motor info

Question 13

What is a decussation?

Answer 13

Oblique crossing of axons from one side to other side of CNS.

Question 14

Commisural fibers are

Answer 14

Axons that arise from one side of brain or spinal cord and cross to other side.

Question 15

Association fibers are

Answer 15

Axons that connect the different parts of the same hemisphere.