16 JULY 2019

Question 1

the reticular formation regulates in what four areas?

Answer 1

the cerebellum
dorsal horn
lateral horn
ventral horn

Question 2

fx of RT in cerebellum:

Answer 2

level of arousal

sleep / wake cycles

Question 3

fx of RT in dorsal horn:

Answer 3

influence the synapse of the pain pathway

closes the pain gate

Question 4

fx of RT in lateral horn:

Answer 4

autonomic control
influences peripheral ANS
visceral control fx

Question 5

fx of RT in ventral horn:

Answer 5

cell bodies of LMN

depolarizes so lowers threshold for fight or flight can activate more quickly

Question 6

dx in the sp. cord would make touch:

Answer 6

ipslateral

Question 7

dx in the sp. cord would make pain:

Answer 7

opposite side

Question 8

dx in the sp. cord would make motor

Answer 8

ipslateral

Question 9

tectum is the

Answer 9

a roof over the 4th ventricle

has four bumps

Question 10

what are on the tectum:

Answer 10

4 bumps:

sup and inf colliculus

Question 11

superior colliculus does what

Answer 11

turns head in response to visual in peripheral

Question 12

inferior colliculus does what

Answer 12

turns head in response to sound in peripheral

Question 13

head in response to visual

Answer 13

sup colliculus

Question 14

head in response to sound

Answer 14

inf colliculus

Question 15

tegmentum:

Answer 15

ascending pathway including reticular formation 
holds the: 
- spinothalamic tract 
- medial lminscus 
- spinocerebellar tract

Question 16

three tracts inside the tegmentum are?

Answer 16

spino thalamic
medial leminscus
spinocerebellar tract

Question 17

where are fasciculus found?

Answer 17

the medulla

Question 18

where are the cerebellar peduncles found?

Answer 18

the pons

Question 19

what structure does the medulla have?

Answer 19

fasciculus

Question 20

what structure does the pons have?

Answer 20

cerebellar peduncles

Question 21

overall the cerebellum does three things:

Answer 21

coordinates movements
plan movement
shift attention

Question 22

when there is dx to a vertical tract dx will be :

because it crosses in the :

Answer 22

contralateral

cauda medulla (corticospinal in decussation of meddual)

Question 23

segmental tracts that are dx aka CN are

Answer 23

ipslateral

Question 24

the two other places that have ipslateral dx are

Answer 24

the cerebellum and automatic control

Question 25

what are the four Ds of brainstem dysfx:

Answer 25

dysphagia
dsyarthria
diplopia
dymetria

Question 26

CN involved in dsyphagia:

Answer 26

X, IX, V, VII, XII

Question 27

CN involved in dsarthria:

Answer 27

V. VII, XII

Question 28

CN involved in diplopia:

Answer 28

III, VI, IV

Question 29

CN involved in dymetria

Answer 29

no CNs but pontocerebellar fx