Anatomy Revision Flashcards
where is the opening of the internal acoustic meatus
posterior cranial fossa
what is the adenoid closley related to
the eustachian tube
what duct is most likely to be damaged in a le fort 1 fracture
nasolacrimal duct
what is the aditus
the passageway to the mastoid antrum
what is the mastoid antrum
air space in the petrous part of the temporal bone
where does the sphenoid sinus drain to
the sphenoethmoidal recess
what fossa are the brains frontal lobes in
anterior fossa
what skull bone is shaped like a butterfly
sphenoid
what bone is the otic cavity in
temporal
where in otic cavity is the stapes
epitympanic recess
what controls the movement of the stapes
skeletal muscle- stapedius
nerve- CN VII (facial)
is the stapes in contact with the perilymph
yes via the oval window
what is the sensory innervation of the stapes
CN IX glossopharyngeal
where does lymph from the stapes drain to
throacic duct
what nerve has sensory ganglion in the geniculate ganglion in the petrous part of temporal bone
facial nerve
what nerve courses over the internal aspect of the tympanic membrane
chorda tympani
what nerve is the sensory supply to the skin over the inferior part of the external auditory meatus
vagus
what nerve is the sensory supply to the mucosa of the nasal cavity
maxillary CN V2
what nerve pathology is associated with subsequent falls
vestibular nerve
what 4 things are in the jugular foramen
CN XI (accessory) CN X (vagus) CN IX (glossopharyngeal) internal jugular vein
what is the sensory innervation of the ear lobe
spinal nerve 2 and 3
what prevents the anterior dislocation of the tmj
zygomatic process
what bones is the hypoglossal canal a feature of
occipital bone
what canal transmits taste fibres from anterior 2/3rds of the tongue
facial canal
what part of the temporal bone articulates at the pterion
the squamous part
where are the internal and external acoustic meatus’
in the petrous part of the temporal bone
where does the antrum of the maxillary sinus drain to
the middle meatus
where does the nasolacrimal duct drain to
inferior meatus
what innervates the eustachian tube
glossopharyngeal nerve
is the facial nerve a peripheral nerve
yes
what are the different axons of the facial nerve
special sensory
sensory
motor
parasympathetic
what connects to the brain stem at the junction between the pons and the medulla oblogate
cranial nerve CN VII and VIII
what branch of facial nerve supplies taste to anterior 2/3rds of tongue
chorda tympani
what is the crista galli
upper part of the perpendicular plate of the ethmoid bone
forms part of roof of nasal cavity
what part of ethmoid bone is covered by respiratory mucosa
middle concha
what is the aditus
passageway to mastoid antrum (air space in petrous temporal bone)
what is the nerve supply to: stylopharyngeal, mucosa of the oropharynx + opening to eustachian tube + middle ear and medial side of tympanic membrane
CN IX
glossopharyngeal
what is pierced by the parotid duct
buccinator
what muscle of the palate is derived from the 1st pharyngeal arch
tensor veli palatini
what muscle opens the jaw
lateral pterygoid
what is the motor innervation of the tongue muscles
all hypoglossal expect palatoglossal (vagus)
name this muscle: located within peritrachial layer of deep cervical fascia below C3 attaches between two hyaline cartilages not involved in whispering
arytenoid muscles
what is the surface landmark for a circoid puncture
arch of cricoid
what is the sensory nerve of the tonsilar sinus
CN IX
what level is the thyroid cartilage
C5
what level is the first palpable vertebrae
C7
at what level does the trachea split
between T5-7
what foramen does the internal carotid artery go
carotid canal
what are the regional lymph nodes for the tip of the tongue
submental
what is the sensory supply to the epiglottis mucosae
superior laryngeal
what palate muscle contracts during nasal speech
palatopharyngeus
can you palpate the carotid bifurcation
yes
can you palpate the submandbular glands
yes
what type of cartilage is the epiglottis
elastic
what supply taste sensation to ant 2/3rds of the tongw
taste= chorda Tympani from facial
what supplies general sensory to the ant 2/3rds of the tongue
V3
what is the innervation of the laryngeal muscles
all recurrent laryngeal except the cricothyroid muscle
what is the only abductor of the vocal cords
posterior cricoarytenoid
what will the voice sound like in reinkes oedema
rough
what will the voice sound like in left adductor palsy
very breathy (large gap in glottis)
what will the voice sound like in left abductor palsy
normal but stridor on inspiration
what does a stroboscopy do
slows down vocal fold mucosa movements
