Ears physiology

Question 1

Components of the outer ear

Answer 1

• auricle
• auditory canal

Question 2

Components of middle ear

Answer 2

cavity between eardrum and inner ear containing ossicles

Question 3

components of inner ear

Answer 3

complex of bony tunnels lined with basiliar membrane

Question 4

what is proprioception

Answer 4

help us to keep our balance. some of these receptors are general and others specialised. a sense that allows us to perceive/detect our location, movement, amd action of parts of the body. Encompasses a complex of sensations such as joint position/movement, muscle force, and effort.

Question 5

examples of proprioeception

Answer 5

inner ear proprioceptors; detect head position

somatic proprioceptors; detect muscle contraction, joint position, etc.

Question 6

where is proprioeception information sent

Answer 6

this sensory information is sent to the somatosensory area of the cerebreal cortex and cerebellum; the brain constantly monitors and adjusts posture.

Question 7

Ossicle

Answer 7

refers to the middle ear’s tympanic membrane and three tiny bones within; malleus, incus, and sales

Question 8

auricle

Answer 8

also called the pinna and refers to the entire visible outter ear

Question 9

auditory canal

Answer 9

the narrow passageway from the outer ear to the eardrum

Question 10

ear drum/tympanic membrane

Answer 10

seperate outter ear from middle ear. when sound waves reach this area, it causes the tympanic mmebrane to vibrate and these vibrations are passed on to the ossicles of the middle ear, the inner ear

Question 11

semi-circular canals

Answer 11

three tiny fluid-filled tubes within the inner ear that aid balance of person. when the head moves, this liquid sloshes around and moves the tiny hair lining these canals

Question 12

vestibular nerve

Answer 12

Located within the semi-circular canals and are primarily responsible for maintaining body balance & eye movements by transmitting sensory info from the inner ear to the brain

Question 13

Cochlea

Answer 13

a hallow, spiral-shaped bone located in the inner ear, which plays a key role in hearing

Question 14

chochlear nerve

Answer 14

also known as the acoustic nerve and is a sensory nerve which transfers auditory info from the cochlea to the brain

Question 15

auditory tube (esutachain tube also)

Answer 15

canal which connetcs the nasopharynx to the middle ear. this tube keeps the ears healthy by draining fluid, equalising pressure and protecting middle ear form pathogens

Question 16

endolymph fluid

Answer 16

also known as scarpra fluid, this is clear and founding within the membranous of the labyrinth of inner ear. aids hearing and abalnce movement.

Question 17

perilymph fluid

Answer 17

ECF locaed in the cochlea of the inner ear

Question 18

ampullae

Answer 18

located at the end of semi-circular canals and here tiny balance receptors called crista are located.

Question 19

basilar membrane

Answer 19

mean chemical element of the inner which lines this area

Question 20

organ of corti

Answer 20

organ of the inner ear located within the cochlea and which tranduces auditory signals