Quiz 7: Ascending Brain Stem

Question 1

White matter tracts

Answer 1

Conduct signals to CNS, within, and away

Ascending can be leminiscus or tracts

Question 2

Ascending fiber tracts

Answer 2

Also leminiscus

Allow sensory info from PNS to be shared with CNS

Question 3

Spinal cord tracts in brain stem

Answer 3

Medial leminiscus

Spinal leminiscus

Spinotectal tract

Question 4

Medial leminiscus

Answer 4

Propioception, dorsal column tract from spinal cord

Synapse in gracilis and cuneatus neurons of medulla at inferior olivary nucleus level

Through pons and midbrain

To thalamus and cortex

Question 5

Medial traveling spinal portions

Answer 5

Sacral

Lumbar

Question 6

Lateral traveling spinal portions

Answer 6

Thoracic

Cervical

Question 7

Spinal leminiscus

Answer 7

Lateral and ventral, pain and temp

Synapse neurons of medulla near inferior olivary nucleus of medulla

Through pons and midbrain

To thalamus and cortex

Question 8

Spinotectal tract

Answer 8

General sensory info

Synapses in medulla neurons near inferior olivary nucleus of medulla

Through pons

To midbrain

Question 9

Spinocerebellar tracts

Answer 9

Ventral and dorsal; cutaneous and proprioceptive

Synapses in neurons of upper medulla

To inferior peduncle of cerebellum