quiz #3 - practice (wiley)

Question 1

how many sensory modalities can a single sensory neuron have?

Answer 1

one

Question 2

place the events in order for the process of sensation
1. Stimulation of sensory receptors
2. Generation of nerve impulses
3. Integration of sensory input
4. Transduction of the stimulus

Answer 2

1, 4, 2, 3

Question 3

________ are sensory receptors located in blood vessels and visceral organs, whose signals are not usually consciously perceived?

Answer 3

interoceptors

Question 4

________ would detect irritation on the skin if you didn’t wear gloves while cleaning with bleach

Answer 4

nociceptors

Question 5

after initially detecting the perfume on your partner, over time you would cease to notice it due to…

Answer 5

adaptation

Question 6

adaptation rate of which receptors is rapid? Select all that apply

a) Tactile corpuscles
b) Nonencapsulated sensory corpuscles
c) Bulbous corpuscles
d) Hair root plexuses
e) Nociceptors
f) Muscle spindles
g) Tendon organs
h) Joint kinesthetic receptors
j) Lamellar corpuscles

Answer 6

a
d
h
j

Question 7

which receptors fire at the onset and the offset of stimulation? Select all that apply

a) Corpuscle of touch (Meissner corpuscle)
b) Type 1 cutaneous mechanoreceptor (Merkel disc)
c) Lamellar (Pacinian) corpuscle
d) Type II cutaneous mechanoreceptor (Ruffini corpuscle)
e) Hair root plexus
f) Joint kinesthetic receptors
g) Tendon organ

Answer 7

a
c
e
f

Question 8

the _____ contains the cold thermoreceptors and the _____ contains warm thermoreceptors

dermis
stratum basale
stratum corneum
stratum granulosum
stratum lucidum

Answer 8

stratum basale, dermis

Question 9

which proteins can activate free nerve endings, such as itch receptors and nociceptors? Select all that apply.

a) Kinins
b) Antigens
c) Histamines
d) Potassium ions
e) Prostaglandins
f) Acetylcholine
g) Glucose

Answer 9

a
b
c

Question 10

what describe proprioception?

Answer 10

-proprioceptive sensations allow us to estimate the weight of certain objects
-proprioceptors are slowly adapting receptors
-proprioceptors are embedded in muscles and tendons
-proprioceptive sensations allow us to determine position of body structures relative to each other

Question 11

muscle spindles

Answer 11

detect changes in muscle length, participate in stretch reflexes

Question 12

which proprioceptors are found in the articular capsules of synovial joints?

Answer 12

kinesthetic receptors

Question 13

_____carry afferent signals from the sensory receptor to the CNS. _____ carry afferent signals from the thalamus to the cerebral cortex. _____carry sensory information from the brainstem or spinal cord to the thalamus

Answer 13

first order neurons

third order neurons

second order neurons

Question 14

dancers being aware of their body position when they are in the air is…

Answer 14

proprioception

Question 15

which neuron would pick up an itch sensation?

Answer 15

free nerve endings

Question 16

Which neuron is modified in a manner that helps enhance the sensitivity of the receptor?

Answer 16

encapsulated nerve endings

Question 17

Which structure detects a needle puncture or a cut to the skin?

Answer 17

free nerve ending - medium-diameter, myelinated A fibers

Question 18

Which structure is a multilayer membrane that adapts rapidly to high frequency vibrations?


Answer 18

lamellar corpuscle

Question 19

Which structure is sensitive to low vibrational frequencies and typically located in areas that lack hair?


Answer 19

tactile corpuscle

Question 20

Which structure monitors the stretching of skin during a physical therapy session?

Answer 20

bulbous corpuscle

Question 21

A rapid breeze causes your hairs to shift on your arms and legs. Which sensory receptor is stimulated?

Answer 21

hair root plexus

Question 22

What do the coloured regions on the body’s surface in the diagram represent?

Answer 22

areas of referred pain

Question 23

Which type of stimuli is sensed using encapsulated nerve endings?

Answer 23

vibration

Question 24

detect mechanical stimuli such as touch, pressure, vibration, and stretch

Answer 24

mechanoceptors

Question 25

detect changes in temperature

Answer 25

thermoreceptors

Question 26

respond to painful stimuli

Answer 26

nociceptors

Question 27

detect light

Answer 27

photoreceptors

Question 28

detect chemicals in the mouth (taste), nose (smell) and body fluids

Answer 28

chemoreceptors

Question 29

detects osmotic pressure of body fluids

Answer 29

osmoreceptors

Question 30

Sensory neurons in the muscle spindle are activated during muscle _____. Activation of gamma motor neurons in the muscle spindle cause _____ of intrafusal muscle fibers

Answer 30

muscle stretch
muscle contraction

Question 31

the integration centers for sensations that are consciously perceived (like vision, smell, taste, and pain) are found in the…

Answer 31

cerebral cortex

Question 32

_____ are activated by an increase in tendon tension. _____ detect deep pressure and vibration. _____ are activated by low frequency vibrations

Answer 32

tendon organs

lamellated corpuscles

corpuscle of touch

Question 33

You have a pillow in one hand and are about to pick up your Anatomy and Physiology textbook. What receptor will help determine the muscular effort needed for these two objects?

Answer 33

proprioceptors

Question 34

You are playing outside in -9° C (15° F). Why do you feel sharp pains in your hands when you grab material?

Answer 34

pain receptors are stimulated by extreme temperatures

Question 35

The awareness of differences in the external or internal environment is defined as…

Answer 35

sensation

Question 36

Which of the following would not be considered to be a sensory modality?
a) pain
b) vision
c) equilibrium
d) thought
e) vibration

Answer 36

d) thought

Question 37

T/F - a generator potential produces action potentials and a receptor potential causes release of neurotransmitters

Answer 37

TRUE

Question 38

Which of the following does not consist primarily of slowly adapting sensory receptors?
a) body position
b) touch
c) pressure
d) smell

Answer 38

a) body position

Question 39

Which of the following somatic sensations has an encapsulated nerve ending as its sensory receptor?
a) tickle
b) pain
c) heat or cold
d) pressure
e) itch

Answer 39

d) pressure

Question 40

T/F - the fingertips, hands, and lips are supplied with both rapidly adapting and slowly adapting touch receptors

Answer 40

TRUE

Question 41

Which somatic sensory receptor is rapidly adapting and responsible for fine touch?

Answer 41

tactile corpuscle

Question 42

Which of the following is true when comparing types of pain sensations?
a) C fibers, myelinated, slow pain
b) A fibers, unmyelinated, acute pain
c) C fibers, unmyelinated, chronic pain
d) A fibers, myelinated, slow pain

Answer 42

C fibers, unmyelinated, chronic pain

Question 43

the best example of referred pain is…

Answer 43

pain felt into the left arm during a heart attack

Question 44

The anatomical structure responsible for monitoring the change in length of a muscle is called…

Answer 44

muscle spindle

Question 45

encapsulated sensory receptors include:

Answer 45

receptors for pressure, vibration and some touch

Question 46

in adaptation, the generator potential or receptor potential decreases in amplitude ________

Answer 46

as the stimulus is maintained & constant

Question 47

fast pain differs from slow pain in that in fast pain…

Answer 47

nerve impulses are propagated along medium diameter type A fibers