SC White Matter and Tracts

Question 1

What are tracts?

Answer 1

BUNDLE OF AXONS IN CNS

Question 2

__________ __________ consists of myelinated and unmyelinated axons of sensory neurons, interneurons, and motor neurons.

Answer 2

WHITE MATTER

Question 3

Ascending tracts are ______________.

Answer 3

SENSORY

AFFERENT

Question 4

Descending tracts are _____________.

Answer 4

MOTOR

EFFERENT

Question 5

Most sensory tracts begin with what prefix?

Followed by part of brain where tract leads.

Answer 5

SPINO

Question 6

Motor tracts end with what suffix?

Answer 6

SPINAL

Question 7

Name the aka for fasiculus gracilis?

Answer 7

TRACT OF GOLL

Question 8

Name the aka for fasiculus cuneatus?

Answer 8

TRACT OF BURDACH

Question 9

Fasiculus gracilis picks up info from where?

Answer 9

LOWER LIMBS/TRUNK

T7 and BELOW

Question 10

Fasiculus cuneatus picks up info from where?

Answer 10

UPPER LIMB

T6 and above

Question 11

A _________ __________ is ONE motor neuron and all of the muscle fibers that it innervates.

Answer 11

MOTOR UNIT

Question 12

What is a motor pool?

Answer 12

ALL UNITS WITHIN 1MM