Lab 03

Question 1

medullary olives

Answer 1

motor learning and function - cerebellum

aid in auditory perception

Question 2

medullary pyramids

Answer 2

white matter tract carrying axons from brain to spinal cord

Question 3

pyramidal decussation

Answer 3

where white matter tracts cross over each other

Question 4

pons

Answer 4

taste and sensation to face

hearing and balance

Question 5

fasciculus cuneatus

Answer 5

carries touch, pressure, proprioception sensation from upper limbs

Question 6

fasciculus gracilis

Answer 6

carries touch, pressure, proprioception from lower limbs

Question 7

superior colliculi

Answer 7

visual integration

Question 8

inferior colliculi

Answer 8

auditory integration

Question 9

superior cerebellar peduncles

Answer 9

output info to cortex

Question 10

middle cerebellar peduncles

Answer 10

connects pons to cerebellum

Question 11

inferior cerebellar peduncles

Answer 11

input and output to cerebellum

Question 12

cerebral peduncles

Answer 12

white matter tract relaying information between brain and spinal cord

Question 13

periaqueductal gray

Answer 13

pain modulation

Question 14

red nucleus

Answer 14

motor coordination

beginning of the rubrospinal tract

Question 15

substantia nigra

Answer 15

produces dopamine

implicated in parkinson’s

Question 16

ponto-cerebellar arteries

Answer 16

white matter tract carrying information from pons to cerebellum

Question 17

corticospinal tract (spinocerebellar tract)

Answer 17

white matter tract carrying information from spine and cerebellum

Question 18

anterior lobe of cerebellum

Answer 18

mediates unconscious proprioception

connects cerebellum to spinal cord

Question 19

flocculonodular notch

Answer 19

balance and muscle tone

connects vestibular nuclei to spinal cord

Question 20

posterior lobe of cerebellum

Answer 20

fine motor control
inhibits involuntary movements
connects brainstem and cerebral cortex to cerebellum

Question 21

tonsils

Answer 21

round shaped lobule under cerebellum

implicate in type 1 chiari malformation

Question 22

vermis

Answer 22

body posture and locomotion

Question 23

damage to anterior lobe

Answer 23

loss of motor coordination; seem drunk

Question 24

damage to flocculonodular lobe

Answer 24

loss of axial muscle coordination
deficits in visual tracking
oculomotor control

Question 25

damage to posterior lobe

Answer 25

intention termors

dysmetria

Question 26

type 1 chiari malformation

Answer 26

cerebellar tonsils are elongated, get pushed through foramen magnum and obstruct CSF flow