Unit 5 - ENT Flashcards
(202 cards)
What are the external structures of the ear
Auricle and external auditory canal
What are the external functions of the ear
Protective and helps gather/channel sound
What are the middle ear structures
Ossicles (malleolus, incus, stapes) and the tympanic membrane
What are the functions of the middle ear
Ossicles transmit sound from tympanic membrane to inner ear and the tympanic membrane separates middle from external ear
What are the structures of the inner ear
Vestibule, semicircular canals, and chochlea
What are the functions of the inner ear
Cochlea transmits sound to CN VIII and semicircular canals involved in vestibular function
Sound is also transmitted by ____ directly to the inner ear
By bone
What has the function of odor identifying, passage for inspire/expire air, humidifying and warmth, resonance of laryngeal sounds
Nose, nasopharynx and sinuses
What is the structure of the external nose
Bone/cartilage and nares
What is the kiesselbach plexus
Convergence of small fragile arteries and veins within the nose, nasopharynx, and sinus
What are the only sinuses accessible for physical examination
Only the maxillary and frontal sinuses
What is the nasal floor is formed by what
The hard and soft palate
What is the nasal roof formed by
The frontal and sphenoid bone
Where are do the adenoids lie
On the posterior wall of the nasopharynx
What has the function of emission of air for vocalization and expiration, passage for material, initiation of digestion, and identify taste
Mouth and oropharynx
The oral cavity is divided into the ____ and the _____
Mouth and the vestibule
The ____ houses the tongue teeth, gums and anterior opening of the oropharynx
The mouth
The _________ of the hard palate and the fibrous soft palate form the roof of the mouth
The bony arch
Loose mobile tissue covering the mandibular bone forms the ______
Floor of the mouth
The tongue is anchored to the floor of the mouth by what
The frenulum
The roots of the teeth are anchored to the ________ of the maxilla and mandible
Alveolar ridges
The oropharynx is continuous but inferior to what
The nasopharynx
What separates the oropharynx from the mouth
Separated from the mouth by bilateral anterior and posterior tonsillar pillars
The tonsils lie in the cavity between waht
The anterior and posterior tonsilar pillars