Name the arteries which supply the auricle.
posterior auricular a. & superficialtemporal a. -> both from external carotid a.
Name the nerve which innervates the lower cranial surface of the auricle.
posterior branch of the great auricular n of C2 & C3
Lymph from the superior half of the cranial surface of the auricle drains into the: (2) a. superficial parotid lymph nodes. b. mastoid lymph nodes. c. superficial cervical lymph nodes. d. deep cervical lymph nodes.
b. mastoid lymph nodes d. deep cervical lymph nodes
Name the gland which produces earwax.
Ceramucus and sebaceous glands
What is the size in diameter of the tympanic membrane?
The tympanic membrane is the partition between the _____ and ____
external acoustic meatus and tympanic cavity
Name the shallow central peak of the tympanic membrane
The tympanic membrane faces to anterior, inferior and laterally. True/False
The superior to the lateral process of the malleus attachment on the tympanic membrane is called______.
flaccid part (or pars flaccid)
The external surface of the tympanic membrane is innervated by the a. auricular nerve. c. chorda tympanic. b. tympanic nerve. d. craticotympanic nerve.
auricular nerve (auriculotemporal)
The internal surface of the tympanic membrane is innervated by the a. auricular nerve. c. chorda tympanic. b. tympanic nerve. d. craticotympanic nerve.
B. tympanic nerve of glossopharyngeal
Name the features on the medial wall of the tympanic cavity features.
features the promontory of the labyrinthine wall, formed by the initial (basal) part of the cochlea, the oval and round windows. (?)
The space superior to the tympanic membrane in the tympanic cavity is called _____.
epitympanic or superior tympanic recess
All of the following are the contents of the middle ear, EXCEPT a. malleus. b. incus. c. stapes d. modiolus
Which of the following indicates the floor of the tympanic cavity? a. tegmental wall b. jugular wall c. carotid wall d. mastoid wall
B. Jugular wall (tegmental roof) (carotid anterior) (Mastoid posterior) (Labyrinthine medial) (Membranous lateral)
Name the arteries which supply the pharyngotympanic tube.
Ascending pharyngeal arteries of external carotid artery middle meningeal artery and artery of the pterygoid canal from maxillary
The auditory ossicles transmit the sound wave from ____ to ____ leading to the vestibule of the labyrinth
across the tympanic cavity from the tympanic membrane to the oval window (fenestra vestibule)
The ossicles are covered with regular osteogenic periosteum. True/False
False (lack an osteogenic periosteum) because if they had a periosteum they could grow.
Name the part of the malleus that attaches to the flaccid part of the tympanic membrane.
Neck of malleus
Which of the following describes the umbo correctly? a. Tip of the handle of the malleus b. Neck of the malleus c. Tip of the handle of the incus d. Neck of the stapes
tip of the handle of the malleus
The lenticular process (of incus) articulates with ____________.
head of stapes
The tensor tympanic inserts into ___________.
handle of malleus
The head of the malleus lies in the ______________________
The base of the stapes is considerably smaller than the tympanic membrane, as a result the vibratory force of the stapes is increased approximately _____ times over that of the tympanic membrane.
The auditory ossicles increase the force of the vibrations transmitted from the tympanic membrane.True/False
True (but decrease the amplitude)
The tensor tympani arises from ____, and inserts to ____________.
superior surface of pharyngotympanic tube, greater wing of sphenoid, and the petrous part of the temporal bone handle of the malleus
The tensor tympani is innervated by the ___.
nerve to the medial pterygoid muscle
Name the wall where the pyramidal eminence is for the stapedius muscle emergence
posterior wall of tympanic cavity (mastoid wall)
The otic capsule of the internal ear contains , , and .
Cochlea, vestibule, semicircular canals
The cochlea is the shell-shaped part of the bony labyrinth that contains for the hearing.
Name the bony core of the cochlear
The spiral canal of the cochlea begins at the ______ and makes ___ turns around the bony core
The bony core of the cochlea is called
The large basal turn of the cochlea produces the _______ on the labyrinthine wall
The large basal turn of the cochlea produces , which is part of the labyrinthine wall of the tympanic cavity
Name the communicating feature between the basal turn of the cochlea and the subarachnoid space superior to the jugular foramen
Name the structure, which covers the round window at the basal turn of the cochlear
secondary tympanic membrane
The vestibule of the bony labyrinth is a small oval chamber that contains the and
utricle and sacule
Name the feature, which communicates the vestibule to the posterior cranial fossa
aqueduct of the vestibule
Name the feature, which transmits the endolymphatic duct
How many openings from the semicircular canals to the vestibule?
The membranous labyrinth composed of and
vestibular and cochlear
The vestibular labyrinth contains two small communicating sacs which are known as and
utricle and sacule
Name the spiral thickening of the periosteal lining of the cochlear canal, which secures the cochlear duct to the spiral canal of the cochlea.
Name the feature where the semicircular ducts open through openings
Name the feature where the endolymphatic duct arises
from the bone of the posterior cranial fossa
Name the feature which connects the saccule to the cochlear duct, as a uniting duct
The primary sensory neurons of the cochlear ampulae are in ganglia, which are in the internal acoustic meatus.
The cochlear duct is a spiral tube, which is firmly suspended across the cochlear canal between the on the external wall of the cochlear canal and the ________________ of the modiolus respectively
spiral ligament, osseous spiral lamina
Name the feature of the semilunar communication at the apex of the cochlea between two perilymph-filled spiral canals
Waves of hydraulic pressure created in the perilymph of the vestibule by the vibration of the base of the stapes ascend to the apex of the cochlea through the
Waves of hydraulic pressure pass through the apex of the cochlear and then descend back to the basal turn of the cochlea through
Name the receptor organ of auditory stimuli
organ of corti
The receptor organ of auditory stimuli is situated on the .
basalar membrane and floor of the duct and outer edge of sooeus spiral lamina
The receptor organ of auditory stimuli is overlaid by
gelatenous tectorial membrane
Untreated auricular hematoma might result in the _____ or ____.
cauliflower ear, boxers ear
How do you pull the helix to observe the adult’s tympanic membrane for the otoscopic examination?
posteriorsuperiorly (up, out, back)
An earache and a bulging red tympanic membrane may indicate a sign of
Infection of the mastoid antrum and mastoid cells from a middle ear infection might cause inflammation of the mastoid process known as
Paralysis of the stapedius is associated with excessive acuteness of hearing called or
hyperacusis or hyperacusia
Hyperacusis results from uninhibited movements of the
Motion sickness results from discordance between and stimulation
vestibular and visual
Name the nerve which innervates the upper cranial surface of the auricle.
Lesser Occipital Nerve of C2 and C3