Test 4

Front 1

1. The two major anatomical subdivisions of the nervous system are:

Back 1

CNS and PNS

Front 2

2. Information going into the brain and spinal cord travel on:

Back 2

afferent neurons

Front 3

This part of a typical neuron receives signals:

Back 3

dendrite

Front 4

4. Which of these neuroglia cells have most identical functions:

Back 4

oligodendrocytes and Schwann cells

Front 5

5. Factors that increase the speed of conduction of a nerve signal include:

Back 5

diameter of axon

Front 6

6. Nerve and muscle cell cytoplasm are ______in respect to the outside of the cell.

Back 6

negative

Front 7

7. The threshold potential is the point at which an action potential occurs.

Back 7

True

Front 8

8. This ion leaks out of the cell membrane:

Back 8

K*

Front 9

9. Action potentials move down a myelinated fiber by:

Back 9

salutatory conduction

Front 10

10. Which of these is not a neurotransmitter:

Back 10

steroid

Front 11

11. All cases of Alzheimer’s disease can be traced to a genetic cause:

Back 11

false

Front 12

12. The spinal cord starts at:

Back 12

foramen magnum

Front 13

he spinal cord mater that differs slightly from that of the brain:

Back 13

dura mater

Front 14

n epidural anesthetic would be administered in this layer of spinal meninges:

Back 14

dura mater

Front 15

15. The ascending tracts of the spinal cord:

Back 15

carry afferent information

Front 16

Starting at the nerve fiber, what is the correct order of connective tissue from inner to outermost:

Back 16

endonerium, perineurium, epineurium

Front 17

Select the correct number of spinal nerves:

Back 17

8 cervical nerves

Front 18

Shingles is caused by the

Back 18

Varicella-zoster virus

Front 19

A proprioceptor embedded within muscle that monitors muscles stretch:

Back 19

muscle spindle

Front 20

20. You step on a tack with your right foot. The reflex act of putting down your left foot is termed:

Back 20

crossed extensor reflex

Front 21

21. Toward the front of the brain would be termed:

Back 21

rostral

Front 22

22. The part of the pituitary that is made of brain matter:

Back 22

posterior

Front 23

23. The nervous system arises from this embryonic germ layer:

Back 23

ectoderm

Front 24

24. The telencephalon and diencephalons of the brain arise from this:

Back 24

forebrain

Front 25

25. CSF is produced by:

Back 25

choroid plexus

Front 26

26. A lesion in this area of the brain might cause an inability to form new memories:

Back 26

hippocampus

Front 27

27. Nonfluent aphasia would be a symptom of lesion in this area of the brain:

Back 27

Broca’s area

Front 28

28. Select the cranial nerve that opens the eyelid, constricts the pupil and focuses:

Back 28

oculomotor (III)

Front 29

elect the cranial nerve that provides swallowing, speech and regulation of viscera:

Back 29

vagas (X)

Front 30

30. Which of the following terms would apply to the origin of stimuli when discussing receptors:

Back 30

exteroceptors, interoceptors

Front 31

31. Pain receptors are also known as:

Back 31

nociceptors

Front 32

32. Which of these pain sensations would most likely travel along myelinated fibers:

Back 32

somatic pain

Front 33

33. Which of the following is not an edogenous opioid:

Back 33

substance P

Front 34

34. The taste buds at tips and sides of tongue:

Back 34

fungiform

Front 35

35. Adaptation to odors occurs in:

Back 35

olfactory bulbs

Front 36

36. The one organ in which there are no pain receptors:

Back 36

brain

Front 37

37. The only nerves in the body exposed directly to the external environment:

Back 37

olfactory cells

Front 38

38. The neural folds of an embryo join to form a neural tube at this stage of embryonic development:

Back 38

4th week

Front 39

39. Lesions were once induced in this part of the brain as a treatment for retardation or mental illness:

Back 39

frontal lobe

Front 40

40. The frequency of spina bifida occurring can be reduced by taking:

Back 40

folic acid supplements

Front 41

41. Associated with each pair of spinal nerves is a ganglion. This ganglion is on the:

Back 41

dorsal root

Front 42

42. The 1st cervical nerve pair can be found exiting:

Back 42

Above the C1 (Atlas)

Front 43

43. Early symptoms of spinal cord injury may include:

Back 43

dangerous drop in blood pressure and fever

Front 44

44. When a nerve “crosses over” from one side of the spinal cord to the other, we term it:

Back 44

contralateral

Front 45

45. A lesion in this part of the brain could lead to severe loss of motor control:

Back 45

`cerebellum

Front 46

46. The most lateralization of the brain would be found in:

Back 46

men

Front 47

47. The following selections have a cranial nerve name following by a number. Select the one which has the correct name and number together.

Back 47

Oculomotor (III), facial (VII), vagas (X)

Front 48

48. The neuroglial nerve that has recently been describes as a possible neural stem cell:

Back 48

satellite cell

Front 49

49. Cranial nerves I, II, VIII are:

Back 49

sensory

Front 50

50. The cranial nerve sends significant numbers of fibers to both sides of the brain in humans but is almost completely ipsilateral in some other animals such as birds:

Back 50

II