neuro 4 - brainstem and cranial nerves

Question 1

3 major divisions of the brainstem

Answer 1

midbrain
pons
medulla blongata

Question 2

midbrain

Answer 2

vision, hearing, motor control, sleep and wakefullness, alertness, temperature regulation

Question 3

pons

Answer 3

respiration, control of involuntary actions, sesnory roles (hearning, equilibrium, taste), motor roles (eye movement, facial expressions, chewing, swallowing, secretion of saliva and tears

Question 4

medulla oblongata

Answer 4

control of ventilation, cardiovascular and vasomotor control, reflex centres of vomiting, coughing, sneezing and swallowing

Question 5

cranial nerves attatch to the

Answer 5

brainstem

except olfactory and optic

Question 6

which cranial nerves dont attach to the brainstem

Answer 6

1. olfactory and 2. optic - attatch directly to the frebrain

Question 7

oolfactory and optic cranial nerves attach to the

Answer 7

forebrain

Question 8

cranial nerves that attch to the brainstem

Answer 8

3. oculomotor
4. trochlear
5. trigeminal
6. abducens
7. facial
8. vestibulocochlear
9. glossopharyngeal
10. vagus
11. accessory
12. hypoglossal

Question 9

sesnory fibres terminating at afferent nuclei of the brainstem

Answer 9

trigeminal sensory nucleus
cochlear and vestibular nuclei
nucleus solitarius

Question 10

motor fibres terminating at efferent nuclei

Answer 10

occulomotor nuleus
trochlear
abducens

Question 11

how to identify the midbrain

Answer 11

cerebral aqueduct
colliculus dorsally
inferior peduncle fossa anteriorly

Question 12

how to identify the pons

Answer 12

cut edge of cerebellar penducles laterally

smooth contour anteriorly

Question 13

how to identify the rostral medulla

Answer 13

floor of 4th ventricle dorsally
olive laterally
pyrimid and anterior median fissure anteriorly
presence of CNs

Question 14

how to identify the cuadal medulla

Answer 14

looks similar to a spinal cord
central canal in the middle
pyramid anteriorly and anterior median fissue
circular profile