Special Senses: Hearing/Equilibrium Flashcards
What are small grains of calcium carbonate found in the maculae called?
Otoliths
What is a gelatinous mass that is part of the maculae called?
Otolithic Membrane
does vision play a role in equilibrium?
Yes
Found on the walls of the Saccule and the utricle, what consists of hair cells embeded in an otolithic membrane and otoliths?
The Maculae
It is thought that high pitched sounds peaked on the basilar membrane close to the what?
Oval Window
It is thought that low pitched sounds peaked on the basilar membrane close to the what?
Round Window
Other than the equilibrium apparatus of the ear, what other parts of the body play a role in equilibrium?
Vision/ Proprioceptors
What consists of a tuft of hair cells covered with a gelatinous cap?
Crista Ampullaris
the crista ampullaris of the semicircular canals are responsible for the perception of what type of equilibrium, Dynamic or static?
Mechanism of Dynamic Equilibrium
The enlarged region at the base of each semicircular canal is called?
The Ampulla
The gelatinous cup of the crista ampullaris is called?
Cupula
The involuntary rolling of the eyes in any direction or the trailing of the eyes slowly in one direction followed by rapid movement in the opposite direction is callled?
Nystagmus
The lab test for equilibrium that spun a subject quickly and halted them abruptly to see Nystagmus is called?
Barany Test
The lab test that checked equilibrium with eyes opened and closed by drawing lines on the blackboard as the subject swayed is called?
Romberg Test
The maculae of the saccule and utricle are responsible for the perception of what type of equilibrium, dynamic or static?
Mechanism of Static Equilibrium
