Vestibular Flashcards
1
Q
What is the macula?
A
sensory organ of the utricle and saccule
2
Q
In what planes do the utricle and saccule sense gravitational force?
A
Utricle - upright (macule in horizontal plane)
Saccule - when lying down (macule in verticle plane)
3
Q
What are the three semicircular canals?
A
anterior, posterior, lateral
4
Q
What is the main function of the MLF?
A
control of eye movements
5
Q
How many vestibular nuclei are there? What are their functions?
A
Superior and Medial: eye reflexes
Lateral (Deiter’s): posture
Inferior: integrates vestibular and cerebellar
6
Q
Removal of the anterior lobe of the cerebellum results in what motor finding?
A
Spasticity
7
Q
Which vestibular organ detects static and linear acceleration?
A
macula
8
Q
Which vestibular organ detects angular acceleration?
A
semicircular canals
