Anatomy Head And Neck 01

Front 1

olfactory nerve innervates what striated muscle(s)?

Back 1

none

Front 2

optic nerve innervates what striated muscle(s)?

Back 2

none

Front 3

oculomotor nerve innervates what striated muscle(s)?

Back 3

levator palpebrae superioris, superior rectus, medial rectus, inferior rectus, inferior oblique

Front 4

trochlear nerve innervates what striated muscle(s)?

Back 4

superior oblique

Front 5

trigeminal nerve innervates what striated muscle(s)?

Back 5

temporalis, masseter, medial pterygoid, lateral pterygoid, anterior belly of digastric, mylohyoid, tensor tympani, tensor veli palatini

Front 6

abducens nerve innervates what striated muscle(s)?

Back 6

lateral rectus

Front 7

facial nerve innervates what striated muscle(s)?

Back 7

frontalis, orbicularis oculi, zygomaticus major, buccinator, orbicularis oris, posterior belly of digastric, stylohyoid, stapedius

Front 8

vestibulocochlear nerve innervates what striated muscle(s)?

Back 8

none

Front 9

glossopharyngeal nerve innervates what striated muscle(s)?

Back 9

stylopharyngeus

Front 10

vagus nerve innervates what striated muscle(s)?

Back 10

styloglossus, hyoglossus, genioglossus, intrinsic glossal

Front 11

subdural vs epidural hematoma:

Back 11

subdural- torn cerebral veins, due to anteroposterior blow to the head
epidural- torn meningeal artery
due to blow to side of the head
subdural- between dura and arachnoid.
epidural- between dura and bone

Front 12

laceration of external carotid artery. how do you control bleeding?

Back 12

press backward on skin of neck immediately lateral to cricoid cartilage

may interupt blood supply to brain via ipsilateral internal carotid artery

Front 13

where is aqueous humor produced?

where does it go from here?

Back 13

posterior chamber of the eye

backward to permeate vitrous gel, and forward into anterior chamber

Front 14

what structure is at risk to be damaged if forceps are placed posterior to a neonate's ear during delivery?

this structure would not be at risk if forceps were placed behind the ear of an adult. describe differences between a newborn's skull and an adult's skull that explains this.

Back 14

facial n.

the tympanic bone of a newborn is only a ring. In an adult it is an elongate tube. The mastoid process in a newborn is undeveloped. As a result, stylomastoid foramen of newborn is at lateral surface of skullbase.

Front 15

you see a patient whose left recurrent laryngeal nerve was severed during surgery on the aortic arch. What will be the position of the vocal cords?

describe the effect this will have on the patient's short term and long term abilities to:
speak
cough
breathe

Back 15

left cord will be paramedian
right cord will move as appropriate for activity

speak: st hoarse, lt little or none

cough: st ok, lt ok

breathe: st dyspnea on exertion
lt. dyspnea on exertion

Front 16

infants who have endured prolonged endotracheal intubation run a significant risk of developing scarring of the lining of the air passageway. At what site does this usually occur and why?

Back 16

at level of cricoid cartilage, because this is only site of airway where entire wall is rigid

Front 17

a patient is in severe emotional distress because every time anything brushes against the front of his cheek he experiences pain from this region, his lower eyelid, his upper lip, the skin just behind his eye, his palate and his nasal cavity. What is the name of this condition and irritation of what structure accounts for it?

Back 17

trigeminal neuralgia (or tic doloreaux)

V2, maxillary n.

Front 18

what muscle is weak?
a) can't elevate adducted left eye
b)can't elevate abducted left eye
c)left eye has esotropia at rest and cannot be abducted
d) left eyebrow stays down when patient looks up, no wrinkles in skin of left forehead

Back 18

a)left inferior oblique
b)left superior rectus
c)left lateral rectus
d)left frontalis

Front 19

why is it more difficutl to anesthetize the upper dentition than it is to anesthetize the lower dentition?

Back 19

can anesthetize lower dentition by injecting anesthetic at one site-where inferior alveolar n. enters mandible. Three different nn. in three different locations, innervate upper teeth.

Front 20

describe the anatomical location of the parotid duct and submandibular duct openings into the oral cavity

Back 20

a) parotid duct opens opposite the upper 2nd molar
b) submandibular duct opens at anterior end of sublingual fold

Front 21

without knowing the history of patient J.J., you notice that the side of his head both above and below his left zygomatic arch appears sunken. Atrophy of what muscles can account for this appearance?

if you ask him to open his mouth, what will happen?

Back 21

temporalis, masseter

chin will deviate toward left

Front 22

occupies the oval window of the labyrinthine wall of the middle ear

Back 22

stapes

Front 23

passes in the labyrinthine wall of middle ear immediately superior to the oval window

Back 23

facial nerve

Front 24

opens into the nasopharynx posterior to inferior nasal meatus

Back 24

auditory (eustachian) tube

Front 25

lies on sphenoid bone anterior to the stalk of the pituitary gland

Back 25

optic chiasm

Front 26

crosses the lateral surface of the internal carotid artery in the posterior part of the cavernous sinus

Back 26

abducens n.

Front 27

connects the facial vein to the cavernous sinus

Back 27

superior opthalmic vein

Front 28

lies in a canal within the bone that forms the roof of the maxillary air sinus

Back 28

infraorbital n,a. or v

Front 29

the spinal nerve that is tested when you asses sensation from the earlobe

Back 29

C2

Front 30

lies within a canal in the bone that forms the posterior wall of the middle ear

Back 30

facial n.

Front 31

lie in the root of the tentorium cerebelli

Back 31

transverse sinus, superior petrosal sinus

Front 32

abducts the vocal folds

Back 32

posterior crico-arytenoid m.

Front 33

provides sensation to the laryngeal vestibule

Back 33

internal laryngeal n.

Front 34

opens into the inferior nasal meatus under cover of the anterior part of the inferior concha

Back 34

nasolacrimal duct

Front 35

contains postganglionic parasympathetic cell bodies that send axons to the lacrimal gland

Back 35

pterygopalatine ganglion

Front 36

what are the components of Horner's syndrome?

identify one structure that if damaged may produce a complete Horner's syndrom

Back 36

miosis (pupillary constriction)
mild ptosis (of upper eyelid)
absence of thermally or emotionally induced vasodilation in head
absence of thermally induced sweating on face.

cervical sympathetic trunk