Brainstem Flashcards

1
Q

3 parts of the brainstem

A

Mid brain
Pons
Medulla oblongata

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2
Q

Brainstem orientation

A

Most inferior part of the brain.

Inferiorly blends into the spinal cord.

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3
Q

Brainstem is also known as the

A

Survival centre

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4
Q

Brainstem regulates and monitors

A

Consciousness
Automatic function
Conveys information and signals.

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5
Q

Reticular formation is

A

Set of neurons that is located throughout the Brainstem structures.

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6
Q

Habituation

A

Ability to ignore repetitive, meaningless stumbling while remaining sensitive to others.

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7
Q

Damage to the reticular formation would result in

A

Irreversible coma

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8
Q

Mid brain cranial nerves

A

Oculomotor

Trochlear

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9
Q

Pons cranial nerves

A

Trigeminal
Abducens
Facial
Vestibulocochlear

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10
Q

Medulla cranial nerves

A

Glossopharyngeal
Vagus
Spinal accessory
Hypoglossal

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11
Q

Function of midbrain

A
Vision
Hearing
Motor control
Sleep wake cycle
Temperature regulation
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12
Q

Pons function

A
Relay station.
Sensations of from face and head
Respiration - rate, pattern, intensity,
Hearing
Eye movement
Taste
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13
Q

Medulla function

A

Centre for survival
Cardiovascular
Respiratory
Reflexes

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14
Q

Mid brain contains

A

Cerebral aqueduct

Flow of CFS from around the brain down around spinal cord.

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15
Q

Lesions to midbrain results in

A

Ptosis
Diplopia
Dilated Pupil

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16
Q

Ptosis is

A

Drooping eyelids

17
Q

Diplopia is

A

Double Vision

18
Q

Oculomotor function

A

Eye movement
Raise eye lids
Adjust eye lens

19
Q

Trigeminal function..

A

3 parts
Facial sensation.
Chewing.

20
Q

Facial function…

A

Facial expression
Taste
Salivation

21
Q

Vestibulocochlear function…

A

Hearing

Equilibrium/ balance

22
Q

Trigeminal lesion

A

Absent corneal reflex
Numbness to face
Deviation of jaw
Weak mastication muscles

23
Q

Facial lesions

A

Loss of facial expression. Stone face
Mouth drooping
Inability to close eyes
Taste disorders

24
Q

Vestibulocochlear lesion

A

Hearing loss
Vertigo
Nystagmus (uncontrollable eye movements)
Motion sickness

25
Medulla is the regulation
Heart rate | Inhalation and exhalation
26
Glossopharyngeal function...
Taste Swallowing Salivation
27
Vagus function...
Regulates viscera Speech Swelling Taste
28
Hypoglossal function
Moves tongue
29
Glossopharyngeal and vagus lesion
Loss of gag reflex Loss of taste sensation Dysphasia
30
Hypoglossal lesion
Atrophy tongue | Tongue deviated to side of lesion
31
Eye function cranial nerves
Oculomotor Trochlea Abducens
32
Balance and hearing cranial nerve
Vestibulocochlear
33
Swallow and speech cranial nerve
Glossopharyngeal Vagus Hypoglossal
34
Brainstem lesions tend to show what kind of symptoms
General locations | Left or right side
35
If a person has loss of taste, which cranial nerves would be expected to be damaged
Glossopharyngeal | Vagus
36
If there cranial nerves from 3 to 12 were damaged. | Or pons was damaged.
Locked in Syndrome Paralysis of all voluntary muscles, except eye. They are conscious and awake. Cognitive function is not affected.