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Copy of Intro to The Nervous System (5/28/2026)

Last updated about 3 hours ago

71 questions

Nervous System Overview

Action! Potential

Central Nervous System

Peripheral Nervous System

Reflex Arc

Question 1

02:11

3

Question 2

02:12

2

Question 3

03:40

2

Question 4

03:42

1

Question 5

04:16

1

Question 6

04:17

1

Question 7

04:56

4

Question 8

06:07

3

Questions 9 & 10

07:00

3

3

Questions 11 & 12

07:46

3

3

Question 13

09:09

3

Question 14

09:41

1

Questions 15 & 16

01:08

1

1

Questions 17 & 18

03:18

1

1

Questions 19 & 20

04:05

1

1

Questions 21 & 22

04:51

1

1

Questions 23-25

05:45

1

1

1

Questions 26 & 27

06:19

1

1

Questions 28 & 29

07:35

1

1

Question 30

08:00

1

Question 31

08:14

1

Questions 32 & 33

10:07

1

1

Questions 34 & 35

01:41

1

1

Questions 36 & 37

03:26

2

1

Questions 38 & 39

03:46

1

1

Questions 40 & 41

04:03

3

1

Question 42

04:17

5

Question 43

04:41

4

Questions 44-46

05:45

1

1

3

Questions 47 & 48

06:34

4

1

Questions 49 & 50

07:36

4

1

Question 51

00:50

1

Question 52

01:53

5

Questions 53 & 54

02:50

1

1

Question 55

03:51

1

Questions 56 & 57

04:24

1

1

Questions 58 & 59

05:42

1

1

Questions 60 & 61

06:38

1

1

Question 62

08:00

5

Questions 63 & 64

09:08

1

1

Questions 65-71

02:30

1

1

1

2

1

1

1

Question 1

1.

What are the three principal functions of the nervous system?
a. _______ 
b. _______ 
c. _______ 

Question 2

2.

Provide an example of sensory input and describe the integration process.

Question 3

3.

What are the two main parts of the nervous system?
a. _______ 
b. _______ 

Question 4

4.

What is the role of the motor division?

Question 5

5.

What are neurons, and what is their primary function?

Question 6

6.

What role do glial cells play in the nervous system?

Question 7

7.

List the four types of glial cells found in the central nervous system and their functions.

a. _______ 
b. _______
c. _______  
d. _______ 

Question 8

8.

List three facts about neurons.

Question 9

9.

What are the three main components of a neuron?

a. _______ 
b. _______ 
c. _______ 

Question 10

10.

Describe each of the three main components of the neuron. Separate each description by a double-space.

Question 11

11.

What are the three types of neuron structures?

a. _______ 
b. _______ 
c. _______ 

Question 12

12.

Describe each of the three types of neutron structures and where they are typically found. Separate each by a double-space.

Question 13

13.

Explain the functions of the three types of neurons in terms of impulse travel.

a. Sensory (afferent) -

b. Motor (efferent) -

c. Interneurons (association) -

Question 14

14.

Summarize how the nervous system responds when a spider crawls on your knee.

Question 15

15.

How do neurons communicate impulses

Question 16

16.

What factors can vary in neuron signaling?

Question 17

17.

How is the body compared to a battery?

Question 18

18.

What is membrane potential?

Question 19

19.

What is the resting membrane potential of a neuron?

Question 20

20.

What ions are involved in creating this potential?

Question 21

21.

What is the function of the sodium-potassium pump?

Question 22

22.

What is an electrochemical gradient?

Question 23

23.

What are the three types of ion channels?

a. _______
b. _______  
c. _______ 

Question 24

24.

List each type of ion channel and when each opens. Separate each with a double-space.

Question 25

25.

What happens when these channels open?

Question 26

26.

What is a graded potential?

Question 27

27.

What triggers an action potential?

Question 28

28.

What occurs during depolarization?

Question 29

29.

What is the all-or-nothing phenomenon?

Question 30

30.

What happens during repolarization?

Question 31

31.

What is hyperpolarization?

Question 32

32.

What is the refractory period?

Question 33

33.

Summarize how neurons create and propagate action potentials.

Question 34

34.

Broca's Aphasia

What happened to James after his stroke?

Question 35

35.

How does Broca’s aphasia affect language abilities?

Question 36

36.

What are the two main components of the nervous system?

a. _______ 
b. _______ 

Question 37

37.

What is the primary function of the CNS?

Question 38

38.

What is the initial structure that develops into the central nervous system?

Question 39

39.

What does the caudal end of the neural tube form?

Question 40

40.

What are the three primary brain vesicles?

a. _______ 
b. _______ 
c. _______ 

Question 41

41.

When do these vesicles begin to form?

Question 42

42.

What do the primary vesicles develop into?

a. Prosencephalon divides into _______ and _______ .
b. rhombencephalon divides into _______ and _______ .
c. The mesencephalon _______ .

Question 43

43.

What are the major adult brain regions derived from these vesicles?

a. _______ 
b. _______ 
c. _______ 
d. _______ 

Question 44

44.

What function does the cerebellum serve?

Question 45

45.

What function does the brainstem serve?

Question 46

46.

What are the three components of the brainstem?

a. _______ 
b. _______ 
c. _______ 

Question 47

47.

What structures are included in the diencephalon?

a. _______ 
b. _______ 
c. _______ 
d. _______ 

Question 48

48.

Why is the diencephalon referred to as the "reptilian brain"?

Question 49

49.

What are the four main lobes of the brain and their functions (be brief)?

a. _______ 
b. _______ 
c. _______
d. _______  

Question 50

50.

What is the role of Broca’s area?

Question 51

51.

What role does the peripheral nervous system (PNS) play in relation to the brain?

Question 52

52.

What are the five types of sensory nerve receptors and their functions (be brief)?

a. _______ 
b. _______ 
c. _______ 
d. _______ 
e. _______ 

Question 53

53.

Why is pain considered a useful sensation?

Question 54

54.

Give an example of someone who lacks the ability to feel pain.

Question 55

55.

What is the role of mechanoreceptors and nociceptors when you step on a tack?

Question 56

56.

Describe: Pain Threshold

Question 57

57.

Describe: Pain Tolerance.

Question 58

58.

What occurs at the cellular level when pain is experienced?

Question 59

59.

How do pain signals travel between neurons?

Question 60

60.

What is the role of the afferent division in the PNS?

Question 61

61.

How does the efferent division respond to pain signals?

Question 62

62.

What are the five steps of the reflex arc?

_______ 
_______ 
_______ 
_______ 
_______ 

Question 63

63.

What happens to pain signals once they reach the brain?

Question 64

64.

Why does the brain's processing of pain matter?

Question 65

65.

What are reflex reactions?

Question 66

66.

What is the pathway involved in reflex reactions?

Question 67

67.

How do reflex arcs function?

Question 68

68.

What are the two types of reflexes?

a. _______ 
b. _______ 

Question 69

69.

What is an example of a conditioned reflex?

Question 70

70.

How does the brain interact with reflex reactions?

Question 71

71.

Why are reflex reactions important for survival?