quiz 5

Question 1

1. Which structure/s is/are not included in this list of Peripheral Nervous System (PNS): Sensory
   receptors, peripheral nerves, motor endings?
   a. Associated basal nuclei
   b. Associated ganglia
   c. Associated cortical areas
   d. Associated brainstem ganglia

Answer 1

c. Associated cortical areas

Question 2

2. When someone touches an object___________________ happens at receptors,
   _____________________ happens at somatosensory cortex

Perception, sensation

Answer 2

When someone touches an object [sensation] happens at receptors,
[perception] happens at somatosensory cortex

Question 3

3. Sensory receptors are classified by all, except
   a. Stimulus type
   b. Location
   c. Structure
   d. Color of the ending

Answer 3

d. Color of the ending

Question 4

4. At which temperatures the humans’ thermoreceptors feel cold and hot in Fahrenheits?
   a. Below 63 and above 113
   b. Below 50 and above 120
   c. Below 40 and above 110
   d. Below 70 and above 115

Answer 4

a. Below 63 and above 113

Question 5

5. The mechanoreceptors respond to all except
   a. Touch
   b. pressure
   c. vibration
   d. light
   e. itch
   e. stretch

Answer 5

d. light

Question 6

6. Nociceptors are sensitive to
   a. Light
   b. touch
   c. taste
   d. pain

Answer 6

d. pain

Question 7

7. Smell, taste, hearing, vision, balance require
   a. Special organs
   b. b. Special nerves
   c. c. special training
   d. a and b

Answer 7

a. Special organs

Question 8

8. The receptors that respond to internal viscera and blood vessels are located deep inside the
   skin
   a. True
   b. false

Answer 8

a. True

Question 9

9. What receptors are located in skeletal muscles, tendons, joints, ligaments, and connective
   tissue coverings of bones and muscles?
   a. Musculoskeletal receptors
   b. Deep tissue receptors
   c. Mechanoreceptors
   d. Visceral receptors

Answer 9

c. Mechanoreceptors

Question 10

Match:
10. Merkel discs____
11. Pacinian receptors___
12. Meissner’s corpuscles___
13. Golgi tendon organs___
a. Stretch b. Tactile c. Vibration d. Pressure

Answer 10

10. Merkel discs____d pressure
11. Pacinian receptors___c vibration
12. Meissner’s corpuscles___b tactile
13. Golgi tendon organs___a stretch

Question 11

Match:
14. ____is receptor awareness of changes in the internal and external environment
15. ____perception is the conscious interpretation of those stimuli
a. Perception
b. Sensation

Answer 11

14. b sensation____is receptor awareness of changes in the internal and external environment
15. a perception____perception is the conscious interpretation of those stimuli
    a. Perception b. Sensation

Question 12

16. On the receptor level, stimulus energy must be converted into a graded potential
    a. True
    b. False

Answer 12

a. True

Question 13

17. When receptor membranes become less responsive, and receptor potentials decline in
    frequency and stop, the condition is called
    a. Declined response
    b. Adaption
    c. Declining agitation
    d. Depotentiation

Answer 13

b. Adaption

Question 14

18. Which receptors do not exhibit adaptation?
    a. Pressure
    b. Touch
    c. Smell
    d. Pain
    e. All of the above

Answer 14

d. Pain

Question 15

Match
19. Loose connective tissue that surrounds axons____
20. Coarse connective tissue that bundles fibers into fascicles___
21. Tough fibrous sheath around a nerve____
a. Epineurum b. Endoneurium c. Perineurium

Answer 15

19. Loose connective tissue that surrounds axons____b endoneurium
20. Coarse connective tissue that bundles fibers into fascicles___c perineurium
21. Tough fibrous sheath around a nerve____a epineurium
    a. Epineurum b. Endoneurium c. Perineurium

Question 16

22. The shortest of cranial nerves is responsible for
    a. Vision
    b. Moving the eyeball
    c. Taste
    d. Smell
    e. Hearing

Answer 16

d. Smell

Question 17

23. After COVID, many people complained of loss of smell, which in med terms is_________anosmia,
    or decreased ability to smell, called _____hyposmia

Question 18

24. Optic nerve synapses with the next neuron in ______________, before it Is directed to visual
    cortex.
    a. Hypothalamus
    b. Thalamus
    c. Amygdala
    d. Pons

Answer 18

b. Thalamus

Question 19

25. Since the optic nerve is part of the brain, it is myelinated through
    a. Schwann cells
    b. Astrocytes
    c. Oligodendrocytes
    d. Myelinocytes

Answer 19

c. Oligodendrocytes

Question 20

26. Optic nerve is highly regenerative, so nerve damage does not produce irreversible blindness
    a. True
    b. false

Answer 20

b. false
optic nerve incapable of regeneration

Question 21

27. The smallest of cranial nerves ________, is the only cranial nerve to exit dorsal brain stem,
    and moves eye down and out
    a. Trigeminal
    b. Trochlear
    c. Oculomotor
    d. Facial

Answer 21

b. Trochlear

Question 22

28. Which branch of trigeminal nerve is motor and participates in mastication?
    a. Ophthalmic
    b. Maxillary
    c. Mandibular

Answer 22

c. Mandibular

Question 23

29. In loss of function of this nerve, the jaw deviates to the paralyzed side when it opens
    a. Ophthalmic
    b. Maxillary
    c. Mandibular
    d. Trigeminal

Answer 23

d. Trigeminal

Question 24

30. In loss of function of this nerve, the patient will be unable to move the eye laterally
31. Ophthalmic
    b. Maxillary
    c. Mandibular
    d. Trigeminal
    e. Abducens

Answer 24

e. Abducens

Question 25

32. The patient comes to you with complains of ptosis, and ipsilateral pupil dilation. You understand that there is a loss of function of which nerve? a. Facial b. Oculomotor c. Trochlear d. Trigeminal

Answer 25

b. Oculomotor

Question 26

33. Which nerve functions in rising the eyelid, directing the eyeball, constricting the iris, controlling the lens and controlling pupil constriction? 1. I 2. II 3. III 4. IV 5. V

Answer 26

3. III

Question 27

34. All of the following are branches of facial nerve, except a. Occipital b. Temporal c. Zygomatic d. Buccal e. mandibular f. Cervical

Answer 27

a. Occipital

Question 28

35. The patient comes to the clinic with both upper and lower facial weakness, cannot close the eye, drools. You diagnose the condition as Bell’s palsy. Which nerve is involved? a. Facial b. Oculomotor c. Trochlear d. Trigeminal

Answer 28

a. Facial LMN lesion

Question 29

36. Sensory input from the anterior 2/3 of the tongue, grimacing, autonomic impulses of lacrimal and salivary glands are functions of which nerve? a. Facial b. Oculomotor c. Trochlear d. Trigeminal

Answer 29

a. Facial

Question 30

37. The patient comes to your office complaining of recent loss of balance. You notice that she is turning her head when talking to you. During history and examination, you find out that she had a serious viral infection 2 weeks ago. Which nerve damage are you suspecting? a. Vestibulocochlear b. Oculomotor c. Trochlear d. Trigeminal

Answer 30

a. Vestibulocochlear

Question 31

38. Which tests will the doctor perform for the condition described in question 37? a. Rinne b. Weber c. Tinnel d. both a and b e. both b and c

Answer 31

d. both a and b

Question 32

39. This nerve rises from the medulla and innervates both extrinsic and intrinsic muscles of the tongue, which contributes to swallowing and speech. a. Glossopharyngeal b. Hypoglossal c. facial d. Trigeminal

Answer 32

a. Glossopharyngeal

Question 33

40. The patient comes to you with complains of recent hoarseness and difficulty swallowing. Which nerve may be involved? a. Glossopharyngeal b. Hypoglossal c. vagus d. facial e. trigeminal

Answer 33

c. vagus

Question 34

41. Taste from the posterior 1/3 of the tongue is a function of which nerve? a. Glossopharyngeal b. Hypoglossal c. vagus d. facial e. trigeminal

Answer 34

a. Glossopharyngeal

Question 35

42. Supplies motor fibers to the larynx, pharynx, and soft palate, innervates the trapezius and sternocleidomastoid muscles. a. Glossopharyngeal b. Hypoglossal c. vagus d. facial e. accessory

Answer 35

e. accessory