Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
Sense angular acceleration
|
3 semi-circular canals
|
|
|
Includes the saccule and utricle, which sense linear acceleration.
|
Maculae
|
|
|
Hair cells serve as the ----- used to provide information on head motion and head orientation with respect to gravity.
|
cellular sensory element
|
|
|
Function of the otolithic organs (utricle and saccule)
|
static tilt with respect to gravity and linear accleration
|
|
|
Hair cells project into ------ Otoconia reside on surface of --------
|
gelatinous layer
|
|
|
Vertically oriented in the sagittal plane. Hair cells oriented with knocillium (sensitivity) away from striola
|
Saccule
|
|
|
Horizontal with a 30 degree off-horizontal bend toward the anterior end. Hair cells oriented with kinocillium (sensitivity) facing striola
|
Utricle
|
|
|
Function of semicircular canals
|
angular acceleration and principle input to the VOR
|
|
|
Crista of the semicircular canals is located in the
|
Ampulla
|
|
|
In the semicircular canals, the hair cells are oriented in the same direction as defined by
|
kinocillium
|
|
|
hair cells in the scc project into the ---- a gelatinous surface structure
|
cupula which attaches to the opposite wall
|
|
|
endolymph flow toward the ampulla is
|
excitatory (ampullopedal)
|
|
|
Endolymph flow away from the ampulla is
|
inhibitory (ampullofugual)
|
|
|
Endolymph flow is opposite to
|
direction of angular acceleration (head motion)
|
