Anatomy/Physiology Flashcards
Where are the ceruminous glands and sebaceous glands located?
External auditory canal (EAC)
What is responsible for the gating or “attenuation of sound”?
stapedius and tensor tympani muslces that are attached to the ossicles contract
what is responsible for balance
vestibule
What helps with eqm and detects angular acceleration?
semicircular canals
What converts mechanical sound waves into neural impulses?
the organ of Corti in the cochlea
What conducts sound through tiny fluid filled channels into cochlea?
oval window
what communicates with middle ear and permits propagation of fluid waves through perilymph?
round window
Detects linear acceleration
vestibule
Sx of Unilateral peripheral vestibular dysfunction
Severe vertigo
Horizontal Nystagmus
Sx of Bilateral peripheral vestibular dysfunction
Oscillopsia (visual blurring with head movement) and Imbalance or gait ataxia
Trigeminal nerve functions
sensing facial touch, pain and temperature, as well as controlling muscles used for chewing
Main nerves for taste fibers (Gustatory Pathway)
facial (VII), glossopharyngeal (IX), and vagus (X)
What glands secrete salivary amylase?
parotids
When do the frontal and sphenoid sinuses develop?
frontal during 2nd yr and sphenoid during 3rd yr
What innervates the larynx?
Recurrent laryngeal nerves (branch of vagus)
