Chapter 19 Part 2

Question 1

Cell types; olfactory receptors -thermoreceptors; bundles of axons form olfactory nerves -supporting cells - basal (stem) cells

Answer 1

Olfaction (smell)

Question 2

Taste perception involves olfactory input

Answer 2

Gustation (taste)

Question 3

Evalatations in tongue

Answer 3

Papillae

Question 4

Contains taste buds

Answer 4

Vallate, fungiform

Question 5

Do not contain taste buds

Answer 5

Filiform

Question 6

Gustatory receptors,chemoreceptors,supporting cells, basal stem cells

Answer 6

Taste bud cell types

Question 7

Eyebrows,eyelashes,eyelids,eye muscles lacriminal glands- produce tears

Answer 7

Vision (eyes) accessory structures

Question 8

Fibrous (outter), vascular (middle), retina (inner)

Answer 8

Eye layers

Question 9

Consists of cornea, scleara

Answer 9

Fibrous tunic

Question 10

Anterior transparent portion

Answer 10

Cornea

Question 11

Posterior whitish portion

Answer 11

Sclera

Question 12

Consists of choroid, cillary body

Answer 12

Vascular tunic

Question 13

Produce aqueous humor

Answer 13

Cillary processes

Question 14

Alter lens shape for focusing

Answer 14

Cillary muscles

Question 15

Colored part of eye, forms pupil dilates and constricts regulating amount of light entering eye

Answer 15

Iris

Question 16

Consists of neutral portion,pigmented portion

Answer 16

Retina or nervous tunic

Question 17

Containing photoreceptors and ganglion cells that form optic nerve at optic disc

Answer 17

Neutral portion (retina)

Question 18

No rods or cones

Answer 18

Blind spot

Question 19

Contains melanin producing melanocytes that absorb excessive light

Answer 19

Pigmented portion

Question 20

Rods involved with dim (black and white) vision- process light into neural signals

Answer 20

Photoreceptors

Question 21

Involved with color vision and resolution, almost concentrated in fovea centralis (no rods)

Answer 21

Cones

Question 22

Area of highest resolution

Answer 22

Fovea centralis

Question 23

Separated by lens

Answer 23

Eye cavities

Question 24

Contains aqueous humor that produces a intracular pressure

Answer 24

Anterior cavity

Question 25

Abnormal intracular pressure

Answer 25

Glaucoma

Question 26

Located behind lens

Answer 26

Posterior cavity (virtuous chamber)

Question 27

Image formation on retina 4 steps

Answer 27

Refraction,accommodation,constriction,convergence

Question 28

Olification,gustation,vision,balance,hearing

Answer 28

Special senses

Question 29

Bends light rays to focus image 75% occurs at cornea 25% occurs at lens

Answer 29

Refraction (bending)

Question 30

Changes shape of lens -thickens lens increasing focusing power for near vision

Answer 30

Accomindation

Question 31

Of pupil-parasympathetic response that controls intrusisic of muscles of iris

Answer 31

Constriction (narrowing)

Question 32

Enstrinicic eye muscles move both eyes on one set of objects -binocular vision

Answer 32

Convergence

Question 33

Contract pulling choroid forward

Answer 33

Intrinsic cillary muscles

Question 34

Can only see nearby objects -corrected by concave lens

Answer 34

Myopia (nearsightedness)

Question 35

Can only see distant objects -corrected by convex lens.

Answer 35

Hyperopia (farsightedness)

Question 36

Loss of lens transparency

Answer 36

Cantaracts

Question 37

Loss of lens elasticity with age decreasing the ability to see near objects

Answer 37

Presbyopia

Question 38

Irregular curvature of cornea or lens

Answer 38

Astigmatism

Question 39

Loss of rod vision

Answer 39

Night blindness

Question 40

Absense of defiancey of cones

Answer 40

Color blindness

Question 41

Primary visual area

Answer 41

Optical lobe