medical speciality that studies the anatomy and physiology of the ears, nose, and throat.
bony projection of the temporal bone that lies just behind the external ear and contains tiny cavities filled with air.
first bone of the middle ear. attached to the tympanic membrane on one end and the incus on the other. Also known as the hammer.
second bone of the middle ear. attached to the malleus on one end and the stapes on the other. also known as the anvil.
the third bone of the middle ear. attached to the incus on one end and the oval window on the other. also known as the stirrup.
allows air pressure in the middle ear to equalize with the air pressure outside the body.
first structure of the inner ear. tubular structure filled with fluid that contacts the oval window and the round window. The end of the vestibule become the semicircular canals and the cochlea.
3 seperate but intertwined canals that are oriented in different planes. (horizontally, vertically, and obliquely) Help the body keep its balance.
structure in the inner ear associated with the sense of hearing. relays information to the brain via the cochlear branch of the auditory nerve.
vestibulocochlear nerve (aka auditory nerve)
cranial nerve VIII that conducts nerve impulses from the semicircular canals (balance) and cochlea (hearing) to the brain.
vertical wall of bone and cartilage that divides the nose into right and left nostrils.
the hollow area inside the nose that is formed by the ethmoid bone and by the maxillary bones.
three bony projections found on the lateral walls of each nasal cavity, the middle, superior, and inferior
largest pair of sinuses which are found on iether side of the nose in the maxillary bone (upper jaw)
in the sphenoid bone posterior to the nasal cavity and next to the pituitary bone of the brain.
hollow area inside the mouth that contains the tongue, hard palate, soft palate, uvula, teeth, and salivary glands.
roof of the mouth that divides the oral cavity from the nasal cavity and is made up of 3 different bones; maxilla, palatine, and the vomer.
moveable joint where the ligaments attach each end of the mandible to the temporal bone of the cranium.
uppermost portion of the throat where the posterior nares unite. openings at the ends of the eustachian tubes are in the nasopharynx.
folds of connective tissue that produce your voice, stretch across the opening of the larynx
lid like structure that covers the top of the larynx during swallowing to keep food from entering the lungs.
condition in which cerumen (ear wax) epithelial cells, and hair form a mass that occludes the external auditory canal.
bacterial or viral infection of the semicircular canals of the inner ear, causing severe vertigo.
edema of the semicirculare canals with destruction of the cochlea, causing hearing loss, tinnitus, and vertigo.
dysequilibrium with headache, dizziness, nausea, and vomiting caused by riding in a car, boat or airplane.
condition in which there is abnormal formation of bone in the inner ear, particularly between the stapes and the oval window.
sounds, (buzzing, ringing, hissing, roaring) that are heard constantly or intermittently in one or both ears, even in a quiet enviroment.
upper respiratory infection
URI-- bacterial or viral infection of the nose that can spread to the throat and ears. also known as the common cold.
lateral displacement of the nasal septum, significantly narrowingone of the nasal airways.
cleft lip palate
cleft lip and palate is a congenital deformity in which the maxilla fails to join before birth.
recurring, painful clusters of blisters, erupting on the lips or nose, caused by infection with herpes simplex virs type 1.
horseness or complete loss of the voice, difficult swallowing, and cough due to swelling and inflammation of the larynx. caused by a bacterial or viral infection.
temporomadnibular joint syndrome
TMI-- dysfunction of the temporomandibular joint with clicking, pain, muscle spasm, and difficulty opening the jaw.
accute or chronic bacterial infection of the pharynx and palatine tonsils with sore throat, difficulty swallowing, mouth breathing, and snoring.
endoscopic sinus surgery
surgical procedure that uses an endoscope to examine the nose, sinuses, or throat.
surgical procedure to implant a small, battery powered implant beneath the skin behind the ear.
surgical procedure that uses a myringotome to make an incision in the tympanic membrane to drain fluid from the middle ear.
ventilating tube inserted through the incision to form a permanent opening into the middle ear.