Special Senses Flashcards
What is the receptor that acts as a light sensitive pigment to rods/cones
rhodopsin
A bipolar hemaniopia would be caused by what type of lesion? (unable to see either temporal field
optic chiasm
L homonymous hemaniopia would be caused by a lesion in the optic tract on which side of the brain?
right side
List 4 types of conductive hearing loss
- TM perforations 2. fluid in middle ear (otitis media or serous otitis) 3. cerumen 4. otosclerosis
What are some types of sensory hearing loss
- damage to hair cells of the Organ of Corti (loud noises or meds) 2. tumors or acoustic neuroma 3. damage to central auditory pathways
what is sound waves transferred to in the ear on its way to the CNS
electrical energy
what is the middle ear’s structures/functions
tympanic membrane and bony ossicles convert sound waves to fluid in inner ear past the oval window
what is the vestibular system and where is it located
the INNER ear, filled with fluid- maintains equilibrium and balance
which part of the ear is filled with perilymph and endolymph
cochlea
which part of the ear is known for “hair cells” which also tranduces pressure wave of sound to electrical energy
organ of corti
this portion of the ear is able to detect angular/rotational acceleration/deceleration of the head…. may be affected by labrynthitis, vestibulitis, or nystagmus
semicircular canals
Anosmia is
loss of smell
what causes anosmia
damage to cribiform plate
TASTE has 3 types of cells: what is the sensory receptor cell and how is it different than olfactory system
site of transduction is specialized epithelial cells vs. neurons
List the 4 types of papillae
filiform, circumvallate, foliate, fungiform
