Quiz 3

Question 1

Ascending Tracts

Destination

Motor or Sensory

Which sensations involved

Answer 1

Ascending (Sensory)

Tract starts in Spinal Cord to Brain

Sensory Information

Question 2

Spino-

Root word?

Answer 2

Starts in the spinal cord end in the brain

Question 3

-spinal

Suffix means?

Answer 3

Starts from the brain ends in the spinal cord

Question 4

Descending Tracts

Destination

Motor or Sensory

Which sensations involved

Answer 4

Descending

Motor delivers info from the brain to the PNS

Question 5

3 Major Sensory tracts (Somatosensory Tracts)

Answer 5

Posterior Column
Gracile Fasciculus
Cuneate Fasciculus

Question 6

Posterior Column

Answer 6

Carry localized info from receptors in the skin and musculoskeletal system:
Propriocpetion, fine touch, pressure, and vibration

Question 7

Gracile Fasciculs

Answer 7

Transmits info to the cerebrum coming from areas inferior to T6

Question 8

Cuneate Fasciculus

Answer 8

Transmit info to the cerebrum coming from areas superior to T6

Question 9

How many neurons involved in transmission of info from PNS to cerebrum

Answer 9

1-2-3 order neurons

Question 10

Spinothalamic Tracts

Answer 10

Carry sensation for pain, temerature, crude sensation of touch and pressure

Consist of Lateral spinothalamic tracts ( pain/temp)

Anterior spinothlamaic tracts (crude touch, pressure)

Question 11

Spinocerebral Tracts

Answer 11

Origin is spinal cord and destination cerebellum

Consist of Posterior Spinocerebellar Tract and Anterior Spinocerebellar Tract both involved with proprioception

Question 12

Corticospinal Tract (motor)

Answer 12

Corticospinal inclues corticbulbar, lateral corticospinal, and anterior corticospinal tracts

Most important descending motor tract controlling voluntary fine motor movements of upper and lower limbs.

Origin: Cortex destination Spinal Cord

Question 13

Upper Neurons

Answer 13

Axons of upper n