Biology - Topic 17 & 18

Question 1

cornea

Answer 1

gave protection, first contact of life

Question 2

pupil

Answer 2

adjusts amount of light entering eye

Question 3

iris

Answer 3

colored part of eye

Question 4

lens

Answer 4

focuses light

Question 5

ciliary muscle

Answer 5

muscle groups that open and close eyelids

Question 6

aqueous humor

Answer 6

bathes and nourishes the lens and maintains pressure within the eye

Question 7

vitreous body

Answer 7

maintains shape of the eye

Question 8

sclera

Answer 8

white part of eye

Question 9

choroid

Answer 9

supplies retina with nutrients, maintains temperature of eye

Question 10

retina

Answer 10

receives light from lens, creates signals

Question 11

fovea

Answer 11

allows sharp central vision, ex. reading, writing

Question 12

optic nerve

Answer 12

connects eye to brain and nervous system

Question 13

optic disc

Answer 13

connects retina and optic nerve

Question 14

chemoreceptors

Answer 14

detect natural changes in environment

Question 15

olfactory nerves

Answer 15

sole sensory nerve, conveys sense of smell

Question 16

vestibular apparatus

Answer 16

found in inner ear, tells us where we are in space

Question 17

semi-circular canals

Answer 17

tubes in vestibular canal

Question 18

eardrum

Answer 18

separates outer ear from inner ear

Question 19

pinna

Answer 19

collects sound waves

Question 20

auditory canal

Answer 20

path waves are collected, provides path

Question 21

mallicus

Answer 21

‘mallet’

Question 22

incus

Answer 22

‘anvil’

Question 23

stapes

Answer 23

‘stirrup’

Question 24

middle ear

Answer 24

receives and amplifies sounds

Question 25

cochella

Answer 25

organ of corti, filled with liquid & hair cells

Question 26

oval window

Answer 26

transmits movement of fluid within the cochlea

Question 27

rods

Answer 27

shades of darkness, more rods than cones

Question 28

cones

Answer 28

color