Sensory organs - Ear

What are the 2 components of the external ear?

External ear: has a ___ core; supported by muscles and can be turned to trap ___ ___

What are the 3 components of the middle ear?

Tympanic cavity muscles

What are the 2 main components of the internal ear?

Tympanic cavity: auditory tube
- connects the ___ ___ with the nasopharynx
- __ ___ epithelium
- contain ___ cells

Is perilymph associated with the bony labyrinth or the membranous labyrinth?

Is endolymph associated with the bony labyrinth or the membranous labyrinth?

What are the 2 main components of the bony labyrinth?

What are the 4 main components of the membranous labyrinth?

What are the 3 main functions of the internal ear?

What are the 3 semicircular canals of the bony labyrinth?

Connects the cochlear to the semicircular canals

Spiral tunnel around the central axis of spongy bone called modiolus

What are the parts of the cochlear?

___ fills the space between the periosteum and membranous labyrinth

___ ___ produces endolymph

what are the 4 walls/membranes of the cochlear duct?

What are the 3 main cells of the cochlear duct?

Besides creating endolymph, what is the other function of the stria vascularis?

What are the 3 epithelial cell types found within the stria vascularis

this organ is also called the Organ of Corti

what are the 3 major components of the spiral organ?

the sensory hair cells are arranged in 2 rows: the cylindrical ___ ___ cells and the pear shaped ___ ___ cells

gelatinous structure whose lower part of the membrane rests on the tip of the tallest stereocilia of the outer hair cells

bipolar neurons that project into inner hair cells

the vestibular apparatus contains the ___ ___ which are housed in the semicircular canals and the ____ and ___ which are housed in 2 depressions of the vestibule

the enlarged portion of the semicircular ducts is the ___

the vestibular apparatus contains what 3 organs of equilibrium?

sensory hair cells of the crista ampullaris project into the gelatinous ___

cupula has embedded Ca++ crystals called ___

in utricle and saccule, the ___ is the midline