Chapter 2: Senses and Perception

Question 1

sheet of cells in the inner surface of eyeball

Answer 1

retina

Question 2

first thing that light passes through

Answer 2

cornea

Question 3

regulates how much light enters

Answer 3

iris

Question 4

bends light to focus on retina

Answer 4

lens

Question 5

how objects are mapped onto the eyeball

Answer 5

two-dimensional reversed image

Question 6

nerve that signals travel through from the eye to the brain

Answer 6

optic nerve

Question 7

three types of neurons in retina

Answer 7

photoreceptors, interneurons, and ganglion cells

Question 8

located in the most peripheral layer of the retina

Answer 8

rods and cones

Question 9

amount of photoreceptors

Answer 9

125 million photoreceptors

Question 10

95% of structures in human eye

Answer 10

rods

Question 11

structures used for reading and driving

Answer 11

cones

Question 12

vibrates in response to changes in air pressure in the ear

Answer 12

eardrum (tympanic membrane)

Question 13

vibrations sent to the following bones

Answer 13

malleus, incus, stapes

Question 14

pushes on the oval window

Answer 14

stapes

Question 15

fluid filled region of inner ear

Answer 15

cochlea

Question 16

hair cells excite this structure

Answer 16

auditory nerve

Question 17

underlying reason to hearing disorders

Answer 17

loss of hair cells

Question 18

taste is also called

Answer 18

gustation

Question 19

smell is also called

Answer 19

olfaction

Question 20

creation of new neurons

Answer 20

neurogenesis

Question 21

system responsible for touch sensations

Answer 21

somatosensory

Question 22

used to perceive touch sensations

Answer 22

touch receptors

Question 23

area where touch receptor signals are translated

Answer 23

somatosensory cortex

Question 24

receptors used to feel pain

Answer 24

nociceptors

Question 25

opioids produced by the body that act like the analgesic morphine

Answer 25

endorphins

Question 26

analgesic type

Answer 26

morphine

Question 27

used to regulate pain

Answer 27

cognitive behavioral therapy