Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Biology > cranial Nerves (Lecture 19) > Flashcards

cranial Nerves (Lecture 19) Flashcards

1
Q

Cranial Nerves

A
  • anterior to posterior
  • may have one or more of the three functions:
    • sensory=special ( coming from specialized sensory organs ex) eye or nose) or general (pain, touch, temp)
    • somatic= skeletal muscles
    • parasymphatic= regulation of glands, smooth muscles, cardiac muscle. Voluntary semantic/ muscle under voluntary control. Autonomous/ rest and digest

Proprioception= positional information of body parts. Important for balance.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Cranial Nerves

A
  • olfactory (I) smell
  • optic (II) eyes
  • oculomotor (III) muscles of the eye
  • Trochlear (IV)
  • Trigeminal (V) 3 branches
  • abducens (VI)
  • facial (VII)
  • vestibulocochlear (VIII) auditory
  • glossopharyngeal (IX) tongue
  • vagus (X) wanderer, goes to places of the body no other Nerves go
  • accessory (XI) spinal
  • hypoglossal (XII)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Mnemonic aids

A

Oh Oh Ooh To Touch And Feel Very Green vegetables AH!

Olfactory, optic, oculomotor, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, accessory, hypoglossal

Some say marry money but my brother says big business matters more.
S= sensory only
M= motor only
B= both

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

CN I

A

Olfactory= sensory / smell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

CN II

A

Optic= sensory/ sight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

CN III

A

Oculomotor=
motor: moves eye back and forth and up and down. 4 out of 6 Nerves innervated by the oculomotor.
Parasympathetic: constriction of pupil, shape of lens. # 3 constricts pupil and changes shape of lens. Looking at something in the distance changes shape of lens.

Iris: color anterior side and pupil = smooth muscle inside of eye.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

CN IV

A

Trochlear= motor/ 1 eye muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

CN V

A

Trigeminal=
Sensory: face, nasal cavity, cheeks, lips, oral cavity, skin of mandible

 Motor: muscles of mastication, Anterior belly of digastric and mylohyoid
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

CN VI

A

Abducens= motor/ 1 eye muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

CN VII

A

Facial:
Sensory: taste/ anterior 2/3 of tongue
Motor/somatic: facial muscles, posterior belly of the digastric ( hyoid to mastoid). Stimulates almost all facial muscles
• parasympathetic: 2 of 3 salivary glands, lacrimal glands ( tear gland)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

CN VIII

A

Vestibulocochlear: sensory/ balance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

CN IX

A

Glossopharyngeal:
Sensory: taste, posterior 1/3 of tongue, tonsils, middle ear
Motor: 1 muscle of pharynx ( swallowing)
• parasympathetic: parotid salivary gland, glands of tongue

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

CN X

A

Vagus:
Sensory: taste, back of mouth, pharynx, larynx, thoracic and abdominal organ.
Motor: muscles of larynx (voice box), most muscles of pharynx
• parasympathetic: thoracic and abdominal organs= digestive tract, stomach churning, something moving through intestines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

CN XI

A

Accessory: motor= sternocleidomastoid, trapezius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

CN XII

A

Hypoglossal: motor/ tongue muscles

Paralysis of muscles with a resultant impairment of speech and deviation of tongue to one side of the mouth could indicate damage to the hypoglossal nerve.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Points to remember

A
  • cranial Nerves are part of the PNS
  • carry sensory or motor information or a combination and function in parasympathetic nervous system
  • cranial Nerves I, II, VIII sensory only
  • cranial Nerves III, IV, VI, XI, XII motor only
  • cranial Nerves III, IV, VI, XI, XII are motor ( although also function for proprioception
17
Q

Functions in secretions of digestive fluids

A

CN X

18
Q

Functions in hearing and equilibrium

A

CN VIII

19
Q

Functions in facial expressions and secretion of saliva and tears

A

CN VII

20
Q

Functions in sense of smell

A

CN I

21
Q

Functions in sight

A

CN II

22
Q

Functions in chewing and carries sensory data from face to scalp

A

CN V

23
Q

Functions in controlling eye movements in socket

A

CN III, IV, VI

24
Q

Functions in movement of tongue during speech and swallowing

A

CN X, XII

25
Q

Functions to control elevation and depression of scapula and extension of head and rotation of head

A

CN II

26
Q

Damage to the _________ nerve could result in defects of eye movements

A

Abducens

27
Q

All of the following except the ________ nerve begin or end in the orbit

A

Accessory

28
Q

The _________ nerve transmits the breeze across your cheek

A

Trigeminal

29
Q

Cranial Nerves involved in sense of taste

A

VII, IX, X

30
Q

The sensory function known as _________

Conveys information on the position of body parts

A

Proprioception

31
Q

Other name for vestibulocochlear nerve

A

Auditory

32
Q

Nerve responsible for construction of pupil in bright light

A

Oculomotor

Biology (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions