Balance

Question 1

Utricle

Answer 1

Picks up movement side to side

Question 2

What do ears measure?

Answer 2

Acceleration

Question 3

What do semicircular canals measure?

Answer 3

Head movement

Question 4

Anterior

Answer 4

Head motion ‘yes’

Question 5

Lateral/horizontal

Answer 5

Head motion ‘no’

Question 6

Ampula

Answer 6

The sacs in the ear where the hair cells are located

Question 7

Posterior

Answer 7

Head tilt

Question 8

Endolymph

Answer 8

Fluid in semicircular canal and the cochlear duct and detects motion, high in potassium

Question 9

Saccule

Answer 9

Picks up movement up and down

Question 10

Macula

Answer 10

Contains hair cells that pick up motion in the utricle and saccule and

Question 11

Perilymph

Answer 11

Fluid where the hair cells that detect movement, low potassium, located in the scala tempani & scala vestibuli

Question 12

Otoliths

Answer 12

Stones in the utricle and saccule resists the fluid motion to stimulate the hair cells in the macula

Question 13

Mechanoreceptors or hair cells

Answer 13

Detect the movement of the fluid

Question 14

Cochlea

Answer 14

The sound waves in the fluid into nerve impulses

Question 15

Oval window

Answer 15

The bones pushing on the oval window to allow the sound to enter the cochlea

Question 16

Round window

Answer 16

Dissipates the sound waves so there won’t be an echo

Question 17

Scala vestibuli

Answer 17

Top chamber that is being stimulated by the oval window, where the sound waves come in and stimulates the sound

Question 18

Scala tempani

Answer 18

Bottom chamber where it absorbs the sound

Question 19

Scala media or Cochlear duct

Answer 19

Organ of corti where the hair cells pick up water vibrations