Unit 02: Quiz 4

Question 1

The dorsal column system and anterolateral system are associated with the

Answer 1

somatosensory system

Question 2

Primary motor cortex (M1) sends motor signals to the _____ side of the body

Answer 2

contralateral

Question 3

____ respond to edges and isolated points

Answer 3

Merkel’s discs

Question 4

What are the two kinds of proprioceptors?

Answer 4

muscle spindles and golgi tendon organs

Question 5

_____ detect stretching of the skin when we move fingers or limbs

Answer 5

Ruffini corpuscles

Question 6

_____ are the pain receptors on free nerve endings that respond to painful stimuli

Answer 6

nociceptors

Question 7

Which part of the ear contains the cochlea and semicircular canals?

Answer 7

inner ear

Question 8

The sense of smell starts with olfactory receptor cells in the

Answer 8

olfactory epithelium

Question 9

T/F: taste is the only sensory pathway that goes directly to the cortex

Answer 9

false

Question 10

T/F: taste receptor cells have a lifespan of 1-2 years

Answer 10

false

Question 11

All of the following are associated with the auditory pathway EXCEPT:

A) nucleus of the solitary tract
B) inferior colliculus
C) cochlear nucleus
D) superior olivary nucleus

Answer 11

A

Question 12

Visual acuity is best at

Answer 12

the fovea

Question 13

Light triggers _____ in photoreceptors, causing the release of less NT

Answer 13

a graded hyperpolarization

Question 14

Which of the following retina cell types are the sensory neurons at the back of the retina?

Answer 14

photoreceptors

Question 15

An _____ is excited by turning on light in the center of its receptive field

Answer 15

on-center bipolar cell

Question 16

T/F: bipolar cells receive input from ganglion cells and output to photoreceptors

Answer 16

false

Question 17

T/F: bipolar cells receive input from ganglion cells and output to photoreceptors

Answer 17

false

Question 18

_____ in the skin respond to pain, itch, heat, and cold

Answer 18

free nerve endings

Question 19

T/F: sensory transduction is the process of receptor cells converting sensory signals into electrical activity

Answer 19

true

Question 20

Which of the following is caused by progressive damage to the basal ganglia?

A) sensorineural deafness
B) ataxia
C) parkinson’s disease
D) huntington’s disease

Answer 20

D

Question 21

T/F: inner hair cells send information to the brain concerning the mechanical state of the basilar membrane

Answer 21

false

Question 22

Axons from the olfactory receptor cells extend to

Answer 22

olfactory bulb

Question 23

Which part of the ear modifies the character of sound frequencies?

Answer 23

external ear

Question 24

Which of the following is the middle canal of the cochlea?

Answer 24

scala media

Question 25

Some axons in the optic nerve cross the midline at the

Answer 25

optic chiasm

Question 26

Some optic tract axons go to the superior colliculus, but most optic tract axons go to the superior colliculus, but most optic tract axons go to the

Answer 26

lateral geniculate nucleus (LGN) in the thalamus