Hearing

Question 1

Tympanic Membrane:

Answer 1

Thin connective tissue membrane. Skin on external side and mucus membrane on internal side

Question 2

Basilar Membrane:

Answer 2

Receptor cells sit on a basilar membrane, which moves in response to sound waves

Question 3

Tectorial Membrane:

Answer 3

Lies over the receptor cells

Question 4

Malleus:

Answer 4

Hammer – attaches to tympanic membrane

Question 5

Incus:

Answer 5

Anvil

Question 6

Stapes:

Answer 6

Stirrup – bound to oval window

Question 7

Perilymph:

Answer 7

Between bony labyrinth and membranous labyrinth

Question 8

Endolymph:

Answer 8

Inside membranous labyrinth

Question 9

Semicircular Canal:

Answer 9

Enclose the semicircular ducts and senses rotational movement of the head

Question 10

Vestibule:

Answer 10

Central cavity of bony labyrinth composed of two sacs (saccule and utricle), which sense gravity and acceleration

Question 11

Oval Window:

Answer 11

Membrane separating middle and inner ear

Question 12

Round Window:

Answer 12

Allows for fluid displacement in the cochlea

Question 13

Scala Vestibuli:

Answer 13

A perilymph-filled cavity inside the cochlea of the inner ear that conducts sound vibrations to the cochlear duct

Question 14

Scala Tympani:

Answer 14

Transduces the movement of air that causes the tympanic membrane and the ossicles to vibrate, to movement of liquid and the basilar membrane.

Question 15

Cochlear Duct:

Answer 15

Contain receptor cells for hearing

Question 16

Hair Cells:

Answer 16

Detects hearing with stereocilia and synapse with different nerve fibres

Question 17

Stereocilia:

Answer 17

Joint together by tip links, are stimulated by the movement of the basilar membrane which causes them to bend