Unit 6 MAPS

Question 1

Eyelid

Answer 1

Distribute tears across ocular surface, external protection

Question 2

Conjunctiva

Answer 2

Protects and lubricates the eye, produces mucus, extension of sclera

Question 3

Lacrimal Apparatus

Answer 3

Makes new tears and draws old ones away

Question 4

Fibrous Tunic

Answer 4

Dense connective tissue, protects the eyeball and maintains its shape

Question 5

Sclera

Answer 5

maintains eyeball shape, protects from injury

Question 6

Cornea

Answer 6

transparent avascular tissue, protects against

Question 7

Vascular Tunic

Answer 7

Oxygen supply and nutrition for the eye

Question 8

Choroid

Answer 8

supplies outer retina with nutrients

Question 9

Ciliary
Body

Answer 9

produces aqueous humor, changes shape of lens

Question 10

Iris

Answer 10

regulates amount of light entering the eye

Question 11

Lens

Answer 11

focus light onto the retina

Question 12

Pupil

Answer 12

‘window’ into the eye, size controlled by iris

Question 13

Nervous Tunic

Answer 13

Contains photoreceptors (rods & cones), produces vision

Question 14

Retina

Answer 14

captures light and translates it into action potentials

Question 15

Auricle (outer ear)

Answer 15

collects sound waves and channels them into the ear canal

Question 16

Auditory Canal (outer ear)

Answer 16

helps to amplify the sound

Question 17

Tympanic Cavity (middle ear)

Answer 17

efficient transmission of sound energy from the outer ear to the inner ear

Question 18

Tympanic Membrane (middle ear)

Answer 18

separates outer ear from the middle ear, transfers vibrations to ossicles

Question 19

Auditory (Eustachian) Tube (middle ear)

Answer 19

equalize air pressure between atmosphere and middle ear

Question 20

Auditory Ossicles (middle ear)

Answer 20

transmit sound from air to cochlea

Question 21

Malleus (middle ear)

Answer 21

‘Hammer’, connects to the tympanic membrane transferring auditory vibrations to the incus

Question 22

Incus (middle ear)

Answer 22

‘Anvil’, transmits vibrations from the malleus to the stapes

Question 23

Stapes (middle ear)

Answer 23

‘Stirrup’, convey sound vibrations to the bones flat base into the oval window of the cochlea

Question 24

Semicircular Canals (inner ear)

Answer 24

3 small tubes in the major planes of motion, regulate balance and sense head position, dynamic movement

Question 25

Vestibule (inner ear)

Answer 25

perceive movement and acceleration, mention equilibrium and balance, static head tilt

Question 26

Cochlea (inner ear)

Answer 26

fluid-filled, spiral-shaped cavity in inner ear, houses the organ of Corti

Question 27

Organ of Corti (inner ear)

Answer 27

transduction of auditory signals, converts vibrations into action potentials