Summary in Vision

Question 1

_ is the radiation emitted in the form of energy waves.

Answer 1

Electromagnetic Radiation

Question 2

is the distance between successive peaks of a wave and
determines color in light.

Answer 2

Wavelenght

Question 3

is the height of a wave; in vision, it is the source of the
subjective experience of brightness.

Answer 3

Amplitude

Question 4

are individual, indivisible, very small particles that form waves
of electromagnetic energy.

Answer 4

Photons

Question 5

is a unit of measurement equaling 10 to the power of negative
9m used to measure wave frequency.

Answer 5

Nanometer

Question 6

is the ability to retain something rather than reflect or transmit it
to another location.

Answer 6

Absorption

Question 7

__ is the bending back of light toward its source.

Answer 7

Reflection

Question 8

__ is the bony opening in the skull that houses the eyeballl.

Answer 8

Orbit

Question 9

is the deflection, or changing of direction, of light at a boundary
such as that between air and water.

Answer 9

Refraction

Question 10

is a rapid closing of the eyelids.

Answer 10

Blink

Question 11

__ is the white outer covering of the eye.

Answer 11

Sclera

Question 12

__ is the transparent outer layer of the eye.

Answer 12

Cornea

Question 13

_is the area of the eye located directly behind the cornea,
containing aqueous humor.

Answer 13

Anterior Chamber

Question 14

is the fluid located in the anterior chamber that nourishes the
cornea and lens.

Answer 14

Aqueous Humor

Question 15

__ is the opening in the front of the eye controlled by the iris.

Answer 15

Pupil

Question 16

is the circular muscle in the front of the eye that controls the
opening of the pupil

Answer 16

Iris

Question 17

is the clear structure behind the pupil and iris that focuses light
on the retina.

Answer 17

Lens

Question 18

is the ability of the lens to change shape to adjust to the
distance of the visual stimulus.

Answer 18

Accomodation

Question 19

is the large inner cavity of the eyeball.

Answer 19

Vitreous Chamber

Question 20

is the jellylike substance contained by the vitreous chamber.

Answer 20

Vitreous Humor

Question 21

is the elaborate network of photoreceptors and interneurons at
the back of the eye that is responsible for sensing light.

Answer 21

Retina

Question 22

are specialized sensory cell in the retina that respond to light.

Answer 22

Photoreceptors

Question 23

is the area in the retina where blood vessels and the optic
nerve exit the eye.

Answer 23

Optic Disk

Question 24

is the fiber pathway formed by the axons of the ganglion cells
as they leave the eye.

Answer 24

Optic Nerve

Question 25

is a 6mm round area in the retina that is not covered by blood
vessels and that is specialized for detailed vision.

Answer 25

Macula

Question 26

is the ability to perceive visual stimuli focused on the macula of
the retina.

Answer 26

Central Vision

Question 27

the ability to perceive visual stimuli that are off to the side while
looking straight ahead.

Answer 27

Peripheral Vision

Question 28

Is a small pit in the macula specialized for detailed vision?

Answer 28

Fovea

Question 29

is the pigmented layer of cells supporting the photoreceptors of
the retina.

Answer 29

Epithelium

Question 30

is a chemical contained in rhodopsin that interacts with
absorbed light

Answer 30

Retinal

Question 31

is the two ventral layers of the LGN that receive input from M
cells in the ganglion layer of the retina.

Answer 31

Magnocellular layers

Question 32

is the four dorsal layers of the LGN that receive input from P
cells in the ganglion layer of the retina.

Answer 32

Parvocellular layers

Question 33

is a pathway leading from the primary visual cortex in a dorsal
direction thought to participate in the perception of movement.

Answer 33

Dorsal stream

Question 34

is a pathway of information from the primary visual cortex to
the inferior temporal lobe that is believed to process object
recognition.

Answer 34

Ventral stream

Question 35

Is the process of translating a physical stimulus into a neural
signals

Answer 35

Transduction