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SPHY102 Anatomy and Physiology > Week 1 Cranial Nerves > Flashcards

Week 1 Cranial Nerves Flashcards

1
Q

Name the cranial nerves I-XII

Hint: Only One Of The Two Athletes Felt Very Good Victorious and Healthy

A

i) olfactory
ii) ocular
iii) oculomotor
iv) trochlear
v) trigeminal
vi) abducens
vii) facial
viii) vesibulocochlear
ix) glossopharyngeal
x) vagus
xi) accessory
xii) hypoglossal

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2
Q

Which cranial nerves exit from brain?

A

i and ii

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3
Q

Which cranial nerves exit from brain stem?

A

iii to xii

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4
Q

Which cranial nerves are relevant to SP?

A

5 (v) trigeminal

7 (vii) facial

8 (viii) vestibulocochlear

9 (ix) glassopharyngeal

10 (x) vagus

12 (xii) hypoglossal

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5
Q

What is the olfactory nerve for? Is it sensory, motor or both?

A

Smell (sensory)

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6
Q

What is the optic nerve for? Is it sensory, motor or both?

A

sight (sensory)

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7
Q

What is the occulomotor for? Is it sensory, motor or both?

A

moving eyelids, eyeballs, adjusting pupils (motor)

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8
Q

What is the trochlear nerve for? Is it sensory, motor or both?

A

Eye movement (motor)

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9
Q

What is the trigeminal nerve for? Is it sensory, motor or both?

A

Sensation to face (touch, pressure, pain)

Moving facial muscles and allows for chewing (Mastication).

BOTH S & M

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10
Q

What is the abducens for? Is it sensory, motor or both?

A

Moving the eyeballs (motor) - abducts the eye

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11
Q

What is the facial nerve for? Is it sensory, motor or both?

A

For taste anterior ⅔ tongue (sensory) and to form facial expressions (motor)

BOTH S & M

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12
Q

What is the Vestibulocochlear nerve for? Is it sensory, motor or both?

A

Balance (semi circular canal) and Auditory/Hearing (cochlea)

SENSORY

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13
Q

What is the glassopharyngeal nerve for?

A

Swallowing by triggering stylopharyngeus that lifts the pharynx (Motor),

saliva production, taste (posterior third of tongue) (Sensory)

BOTH M & S

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14
Q

What is the vagus nerve for? Is it sensory, motor or both?

A

Controls peripheral nervous system

Motor

Supplies pharynx and velar muscles (for swallowing)

larynx (for voice/sound)

Sensory

(touch, pressure, pain) from the larynx and pharyngeal region as well as from the ear drum and external ear.

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15
Q

What is the accessory muscle for? Is it sensory, motor or both?

A

Movement of head and shoulders, allows for swallowing. (motor)

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16
Q

What is the hypoglossal nerve for? Is it sensory, motor or both?

A

Moving tonge and allows you to form speech and swallowing. (Motor)

17
Q

What are the three branches of the trigeminal nerve?

A
  1. Ophthalmic (CN V1) - sensory (touch, pressure, pain)
  2. Maxillary (CN V2) - sensory (touch, pressure, pain)
  3. Mandibular (CN V3) - mixed (touch, pressure, pain + muscles of mastication)
18
Q

mnemonic for cranial nerves

A

Only One Of The Two Athletes Felt Very Good Victorious And Healthy

19
Q

mnemonic for cranial nerves

A

Only One Of The Two Athletes Felt Very Good Victorious And Healthy

20
Q

mnemonic for sensory, motor or both?

A

Some Say Marry Money But My brother Says Big Brains Matter More

21
Q

What a re the branches of the facial nerve?

A
22
Q

Define GENERAL or SPECIAL as they relate to peripheral nerves

A
  • GENERAL (G): Relates to structures that are NOT considered SPECIAL (eg. General movement, general senses, pain, temperature, touch, pressure, vibration, proprioception)
  • SPECIAL (S): Relates to structures that ARE considered SPECIAL (vision, hearing, taste, balance)
23
Q

Define SOMATIC or VISCERAL as they relate to peripheral nerves

A
  • SOMATIC (S): Relates to structures that are classified as coming from the SOMITE: skin, skeletal muscle, bone
  • VISCERAL (V): Relates to structures that are classified as ORGANS: organs such as kidney, liver, stomach as well as glands, smooth muscle
24
Q

Define EFFERENT or AFFERENT as they relate to peripheral nerves

A
  • EFFERENT (E): A neuron that sends action potentials AWAY from the CNS – involved in controlling effector end organs (somatic or visceral)= motor neurons
  • AFFERENT(A): A neuron that sends action potentials TOWARDS the CNS – involved in SENSING structures (somatic or visceral) = sensory neurons

SPHY102 Anatomy and Physiology (18 decks)

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