Test 2 (Sensory Physiology)

Question 1

Specialized ending of an afferent neuron

Separate cell closely associated with the peripheral end of neuron

Answer 1

Receptor

Question 2

What produces receptor potential

Answer 2

Change in membrane permeabilit and an influx of Na+

Question 3

Concious interpretation of external world derived from sensory input

Answer 3

perception

Question 4

Why does sensory input not give true reality perception?

Answer 4

Humans

Question 5

visible wavelengths of light

Answer 5

photoreceptors

Question 6

mechanical energy

Answer 6

mechanoreceptors

Question 7

temperature change

Answer 7

thermoreceptors

Question 8

solute concentration

Answer 8

osmoreceptors

Question 9

specific chemicals

Answer 9

chemoreceptors

Question 10

pain

Answer 10

nociceptors

Question 11

body position

Answer 11

propioceptors

Question 12

continues to poduce action potentials for the duration of the stimulus and does not adapt very well

Answer 12

tonic receptors

Question 13

important to signal a change in stimulus intensity, rather than relay status quo

Answer 13

phasic receptors

Question 14

things in our environment that are registered by the 5 major sensory organs

Answer 14

sensation

Question 15

how we interpret sensation

Answer 15

perception

Question 16

4 steps to perception

Answer 16

stimulus
transduction
conduction
perception

Question 17

changing stimulus into nerve impulses

Answer 17

transduction

Question 18

where are the senses of touch, pressure, cold and pain sent to?

Answer 18

somatosensory cortex

Question 19

meissner’s corpuscles

Answer 19

stacks of flattened discs just deep to epidermis

Question 20

onion-like capsule deep in skin

Answer 20

pacinian

Question 21

what are the 5 primary tastes

Answer 21

salty
sour
sweet
bitter
umani

Question 22

senses position of head, maintaining posture and position when the head and body are still

Answer 22

static equilibrium

Question 23

fibrous, outermost layer of eye

Answer 23

sclera

Question 24

transparent, anterior surface of the eye

Answer 24

cornea

Question 25

brownish layer deep to the sclera

Answer 25

choroid

Question 26

supports the lens, secretes aqueous humor

Answer 26

ciliary body

Question 27

contains photoreceptors

Answer 27

inner layer

Question 28

filled with aqueous humor which carries nutrients to the cornea and lens

Answer 28

anterior cavity

Question 29

filled with vitreous body which maintains the shape of the eyeball

Answer 29

posterior cavity