ANATOMY OF SENSES: EQUILIBIRUM (BALANCE)

0.0(0)
studied byStudied by 2 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/39

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

40 Terms

1
New cards

Static Equilibrium

associated with vestibule; when the head is motionless; elevates position of head relative to gravity

2
New cards

Macula

  • organ of static equilibrium

  • inside the utricle and saccule

  • specialized patches of epithelium surrounded by endolymph

  • contains thousands of hair cells

3
New cards

Otoliths

Hair cell cilia/microvilli are embedded in a gelatinous mass containing _________.

4
New cards

increase

FUNCTIONS OF OTOLITHS:

  1. _________ the weight of the gelatinous mass

  2. Make it more ________ to the force of gravity.

1 = ?

5
New cards

responsive

FUNCTIONS OF OTOLITHS:

  1. _________ the weight of the gelatinous mass

  2. Make it more ________ to the force of gravity.

2 = ?

6
New cards

Utricular mascula

A1

<p>A1</p>
7
New cards

Utricle

A2

<p>A2</p>
8
New cards

Saccule

A3

<p>A3</p>
9
New cards

Vestibule

A4

<p>A4</p>
10
New cards

Vestibular Branch of the Auditory Nerve

A5

<p>A5</p>
11
New cards

Saccular mascula

A6

<p>A6</p>
12
New cards

Otoliths

B1

<p>B1</p>
13
New cards

Otolithic membrane

B2

<p>B2</p>
14
New cards

Hair cell

B3

<p>B3</p>
15
New cards

Supporting cells

B4

<p>B4</p>
16
New cards

Part of macula

B5

<p>B5</p>
17
New cards

Nerve fibers of vestibular branch of the auditory nerve

B6

<p>B6</p>
18
New cards

Hair Cell

C1

<p>C1</p>
19
New cards

Microvilli

C2

<p>C2</p>
20
New cards

Dynamic Equilibrium

associated with semicircular canals; when the head is moving; evaluates changes in direction and rate of head movement

21
New cards

Semicircular Canals

contain receptors that detect motion of the head; oriented at 90 degrees to each other

22
New cards

ampulla

attaches canal to utricle

23
New cards

Crista Ampullaris

part of ampulla; sensory organ for dynamic equilibrium; contains hair cells with processes extending into a cupula; connected to fibers from vestibulocochlear nerve

24
New cards

Ampullae

A1

<p>A1</p>
25
New cards

Vestibular branch

A2

<p>A2</p>
26
New cards

Auditory Nerve

A3

<p>A3</p>
27
New cards

Cochlear branch

A4

<p>A4</p>
28
New cards

Semicircular canals

A5

<p>A5</p>
29
New cards

Cupula

A6

<p>A6</p>
30
New cards

microvilli

B1

<p>B1</p>
31
New cards

hair cell

B2

<p>B2</p>
32
New cards

nerve fibers to vestibular branch of auditory nerve

B3

<p>B3</p>
33
New cards

Cupula

B4

<p>B4</p>
34
New cards

crista ampullaris

B5

<p>B5</p>
35
New cards

cupula

C1

<p>C1</p>
36
New cards

Hair cell

C2

<p>C2</p>
37
New cards

Crista ampullaris

C3

<p>C3</p>
38
New cards

Mechanism of Static Equilibrium

pull of gravity on gelatinous mass causes hair cells to form impulses

39
New cards

Mechanism of Dynamic Equilibrium

when head turns, endolymph pushes on the cupula

hair cells bend, causing impulses to form

40
New cards