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Principles > Peripheral anatomy; Cranial nerves > Flashcards

Peripheral anatomy; Cranial nerves Flashcards

1
Q

Primary Motor Cranial nerves

A

III; oculomotor
IV; trochlear
VI; abducent
XI; accessory
XII; hypoglossal

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2
Q

Trochlear nerve innervates _____

A

The superior oblique muscle

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3
Q

Abducent nerve innervates _____ and causes______

A

Lateral rectus muscle and pulls view to lateral fields

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4
Q

Accessory nerve innervates____

A

Sternocleidomastoid and trapezius muscle

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5
Q

Hypoglossal nerve innervates ____

A

Tonue and floor of mouth

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6
Q

Pure sensory cranial nerves

A

I: Olfactory
II: Optic
VIII: Vestibulocochlear

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7
Q

Specialized signal transduction

A

signal transduction is taking one phenomenon, looking for it and changing to electrical impulse that can move across the neuro pathways in the body.

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8
Q

Olfactory nerve innervates____

A

have first order olfactor fibers in the nasal cavity -> cribriform plate, ethmoid bone -> olfactory bulb (2nd order) -> processsed close to frontal cortex.

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9
Q

What nerve innervation can be closly associated with memories

A

1; olfactory

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10
Q

Optic nerve innervates______

A

Rods and cones detect light and create electrical impulses that connect to the retinas and take information to the middle of the brain where it crosses over at the optical chiasm and the occipital lobe/visual cortex does the processing

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11
Q

Vestibulocochlear nerve innervation____

A

As sound vibrates the tympanic membrane -> bone movement -> measured by chocleus -> turned to auditory signal-> processed in the temporal lobe

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12
Q

Tympanic bones

A

malleus, incus, tapes

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13
Q

Vestibular organ loops lie in what directions?

A

sagital
coronal
horizontal

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14
Q

MIxed nerves (sensory and motor)

A

V: trigeminal nerve
VII: facial nerve
IX; glossopharyngeal nerve
X: Vagus nerve

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15
Q

Trigeminal nerve takes care of _____

A

sensory for the front of the head (s) and chewing (m)

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16
Q

Trigeminal nerve divisions

A

V1; ophthalmic
V2; Maxillary
V3; Mandibular

17
Q

V1: Ophthalmic Division branches

A

Supraorbital Nerve- primary sensory
Supratrochlear Nerve- top of the nose

18
Q

Maxillary Division V2 branch innervation/ branching

A

Infraorpital division via the infraorbital foramen

Palatine nerves- sensory to top of mouth

nasopharynx

19
Q

V3: Mandibular Division

A

Interior alveolar nerve- inside jaw/ floor of the mouth (sensory) -. mental foramena-> mental nerve

Lingual nerve; Anter 2/3 of the tongue

20
Q

Opening for the inferior alveolar nerve

A

mental foramena and turns into the mental nerve

21
Q

Head sensory nerves

A

Supraorbital - V1
infratrochlear- V1
infraorbital- V2
Mental n- V3

22
Q

Chewing muscles and nerve that innervates it

A

Motor to Masseter and Temporalis Muscles via V3.

23
Q

Facial nerve branches- motor

A

Two chicken bit my zebra

Temporal
Cervical
buccal
Marginal Mandibular branch
Zygomatic

posterior auricular and

24
Q

Sensory functions/ innervations of the the facial nerve

A

sublinguial gland
submandibular gland
lacrimal gland

tongue sensory

25
Q

Glossopharyngeal nerve innervation (7)

A

-Posterior 1/3 of the tongue
-Oropharynx soft palate
-Chemoreceptors; carotid body
-Baroreceptors; Carotid sinus
-glandular parotid gland
-sensory; inner/middle ear and auditory canal (pressure/pain)
-tonsils

26
Q

Vagus nerve efferent Function (6)

A

Laryngeal muscles
Pharyngeal constrictors
PSNS to heart
PSNS to GI
PSNS to lungs/airways
PSNS

27
Q

Vagus nerve afferent function (5)

A

Laryngopharynx
Larynx
Epiglottis
Trachea
Aortic arch: BP & acid/base
Part of inferior cranium and ear

28
Q

Vagus nerve laryngeal branches

A

Pharyngeal constrictor branch
superior laryngeal branch
recurrent laryngeal nerve
inferior laryngeal nerve

29
Q

Superior laryngeal nerve branches and functions

A

internal laryngeal nerve; sensory for inside the larynx

External laryngeal nerve; motor for cricothyroid muscle

30
Q

R and L recurrent Laryngeal nerve locations

A

R= subclavian
L= Vagus nerve

31
Q

inferior laryngeal nerve functions

A

motor pathways for speech
sensory for trachea and mainstem bronchi

32
Q

Layers of the nerve

A

nerve sheath
Exterior epineurium
internal epineurium
Fasciles
Perineurium
Endoneurium

33
Q

Bundles of axons in the same direction

A

Fascicle

34
Q

What consists of the endoneurium

A

Axons, bv, some connective tissue

35
Q

Brachial plexus ultrasound starting point

A

supravlavicular fossa

Principles (34 decks)

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