Brainstem/Somatosensory

Question 1

What is the Superior Colliculus responsible for?

What is the Inferior Colliculus responsible for?

Answer 1

Head and neck, visual reflexes

Head and Neck, auditory reflexes

Question 2

What is the mamillary body used for and Sustantia Nigara?

Answer 2

MB: memory formation, part of the limbic system

Substantia Nigara is for basal ganglia

Question 3

Where is the Red nucleus found and what is it for?

Answer 3

medulla and movement, flexors of the upper arm

Question 4

What is the medial and lateral Geniculate for?

Answer 4

Relay station for auditory (medial) and vision (lateral)

Question 5

What area of the brain goes bad due to chronic alcoholism and memory formation degeneration?

Answer 5

Mammillary Bodies

Question 6

What crosses cerebellum and helps coordinate movement?

Answer 6

Inferior Olivary Nucleus

Question 7

Pyramid in the medulla, has what kind of axons that are ipsilateral to motor cortex?

Answer 7

Corticospinal

Question 8

Pyramidal Decussation is the crossing over of the corticospinal tract to what?

Answer 8

contralateral side

Question 9

_______________ – For brain arousal, ocular reflexes, autonomic function

Answer 9

Reticular Formation

Question 10

Inferior Cerebellar Peduncle does what?

Answer 10

main input path from muscle receptors and joints for Unconscious Proprioception

Question 11

___________important in maintaining balance and vestibulo-ocular reflexes

Answer 11

Medial and Inferior Vestibular Nuclei

Question 12

All the fibers in the cerebellum are ______

Answer 12

ipsilateral

Question 13

What tract uses conscious proprioception which is served by receptors in joints and skin?
What tract uses unconscious proprioception which is served primarily by muscles and goes directly to what?

Answer 13

DCML to Somatosensory Cortex

Cerebellum

Question 14

Fascicultus Gracilis is what area for the sensory system?

Fascicultus Cutaneous is what area, upper limb?

Answer 14

Lower Limbs

Upper Limb, must be cervical

Question 15

What does the fasciculus gracilis and fasciculus cutaneous make up what?

Answer 15

Dorsal Funiculus

Question 16

Lesions in the parietal lobe, result in astereognosis, what does that mean?

Answer 16

inability to identify an object by touch alone

Question 17

What is agraphesthesia?

Answer 17

A lesion in the superior parietal lobe, inability to identify numbers/letters written on the skin

Question 18

What is the cingulate gyrus important for?

Answer 18

– important in memory, pain and emotion

Question 19

______________connects cingulate gyrus to hippocampus – important in memory and pain

Answer 19

Cingulum

Question 20

What is the loss of sense of Pain and Temperature at level of lesion?

Answer 20

Syringomyelia