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Anatomy > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

Cranial Nerve 1

A

Olfactory

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2
Q

Cranial Nerve 1 - Foramen

A

Cribriform Plate (Ethmoid Bone)

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3
Q

Cranial Nerve 1 - Function

A

Sensory Information about Olfaction is sent to the Olfactory complex of the Temporal lobe (Piriform Cortex).

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4
Q

Cranial Nerve 2

A

Optic

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5
Q

Cranial Nerve 2 Foramen

A

Optic Canal

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6
Q

Cranial Nerve 2 Function

A

the retina sends Sensory fibers to the thalamus—1/2 cross-optic chiasm. They are relayed to the lateral geniculate nucleus. Then to calcarine fissure.

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7
Q

Cranial Nerve 3

A

Oculomotor

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8
Q

Cranial Nerve 3- foramen

A

Superior Orbital Fissure

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9
Q

Cranial Nerve 3 - Function

A

The oculomotor nucleus in the midbrain sends fibers to 5/7 extraocular muscles except Lateral Rectus and Superior Oblique

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10
Q

Cranial Nerve 3- Parasympathetic

A

Edinger Westphal nucleus sends tracts traveling through the III cranial nerve where it reaches the ciliary ganglion. From there it acts upon the ciliary body and construction of the pupil.

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11
Q

Cranial Nerve 4

A

Trochlear

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12
Q

Cranial Nerve 4 Foramen

A

Superior Orbital Fissure

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13
Q

Cranial Nerve 4 Function

A

The Trochlear Nucleus in the midbrain sends motor fibers to the superior oblique muscles.

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14
Q

Cranial Nerve 5

A

Trigeminal

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15
Q

Cranial Nerve 5 Function

A

V1-Opthalamic - Sensory information to Upper face
V2-Maxillary - Sensory Information to Middle Face/Nose and Upper Teeth
V3- Mandibular - Sensory Information to Lower face and lower teeth and anterior 2/3 of tongue.
Motor Information to the muscles of mastication

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16
Q

Cranial Nerve 5 Foramen

A

V1-Opthalamic - Superior Orbital Fissure
V2-Maxillary- Foramen Rotundum
V3- Mandibular- Foramen Ovale

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17
Q

Cranial Nerve 6

A

Abducens

18
Q

Cranial Nerve 6 Function

A

Motor neurons travel from abducens nucleus in pons to the lateral rectus muscle of the extraocular muscles

19
Q

Cranial Nerve 6 Foramen

A

Superior Orbital Fissure

20
Q

Cranial Nerve 7

A

Facial

21
Q

Cranial Nerve 7 Function

A

Sensory information is obtained for taste from the anterior 2/3 of the tongue, motor information is sent to the muscles of facial expression.

22
Q

Cranial Nerve 7 Foramen

A

Internal Acoustic Meatus

23
Q

Cranial Nerve 7 parasympatetic

A

Starting in the Superior Salivatory nucleus singlas travel through the 7th cranial nerve to reach the pterygopalatine ganglion or the submandibular ganglion. Fibers then either go to the lacrimal/nasal glands or the submandibular/sublingual glands.

24
Q

Cranial Nerve 8

A

Vestobucochlear

25
Q

Cranial Nerve 8 Function

A

Sensory information from the cochlea and semicircular canals is sent to pons. Then are sent to the Medial Geniculate Nucleus which relays information to the superior temporal gyrus.

26
Q

Cranial Nerve 8 Foramen

A

Internal Acoustic Meatus

27
Q

Cranial Nerve 9

A

Glossopharyngeal

28
Q

Cranial Nerve 9 Function

A

Sensory information from general taste and sensory information in the posterior 1/3 of the tongue. Motor information is sent to muscles of the pharynx

29
Q

Cranial Nerve 9 Foramen

A

Jugular Foramen

30
Q

Cranial Nerve 9 Parasympathetic

A

Starting at the inferior salivatory nucleus in the medulla they target the otic ganglion from there they go on to target the parotid gland

31
Q

Cranial Nerve 10

A

Vagus

32
Q

Cranial Nerve 10 Function

A

Both sensory information in the head, neck,thorax, and pelvis, as the motor fibers target the larynx and pharynx

33
Q

Cranial Nerve 10 Foramen

A

Jugular Foramen

34
Q

Cranial Nerve 10 Parasympathetic

A

Starting in the Dorsal Motor Nuclei fibers travel down the vagus nerve to innervate structures like bronchi, heart, stomach, intestines

35
Q

Cranial Nerve 11

A

Spinal Accessory

36
Q

Cranial Nerve 11 Function

A

Motor information travels from the cervical spinal cord to the muscles sternocleidomastoid and Trapezius.

37
Q

Cranial Nerve 11Foramen

A

Jugular Foramen

38
Q

Cranial Nerve 12

A

Hypoglossal

39
Q

Cranial Nerve 12 Function

A

Motor information travels from hypoglossal nucleus in pons to the muscles of the tongue

40
Q

Cranial Nerve 12 Foramen

A

Hypoglossal canal

Anatomy (17 decks)

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