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Copy of Intro to The Nervous System (3/10/2025) (5/28/2026)

Last updated about 3 hours ago

69 questions

Nervous System Overview

Action! Potential

Stop here.

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

Question 11

07:46

3

Question 12

09:41

1

Questions 13 & 14

01:08

1

1

Questions 15 & 16

03:18

1

1

Questions 17 & 18

04:05

1

1

Questions 19 & 20

04:51

1

1

Questions 21-23

05:45

1

1

1

Questions 24 & 25

06:19

1

1

Questions 26 & 27

07:35

1

1

Question 28

08:00

1

Question 29

08:14

1

Question 30, Question 31, Text

10:07

1

1

Questions 32 & 33

01:41

1

1

Questions 34 & 35

03:26

2

1

Questions 36 & 37

03:46

1

1

Questions 38 & 39

04:03

3

1

Question 40

04:17

5

Question 41

04:41

4

Questions 42-44

05:45

1

1

3

Questions 45 & 46

06:34

4

1

Questions 47 & 48

07:36

4

1

Question 49

00:50

1

Question 50

01:53

5

Questions 51 & 52

02:50

1

1

Question 53

03:51

1

Questions 54 & 55

04:24

1

1

Questions 56 & 57

05:42

1

1

Questions 58 & 59

06:38

1

1

Question 60

08:00

5

Questions 61 & 62

09:08

1

1

Questions 63-69

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.

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

Question 13

13.

How do neurons communicate impulses

Question 14

14.

What factors can vary in neuron signaling?

Question 15

15.

How is the body compared to a battery?

Question 16

16.

What is membrane potential?

Question 17

17.

What is the resting membrane potential of a neuron?

Question 18

18.

What ions are involved in creating this potential?

Question 19

19.

What is the function of the sodium-potassium pump?

Question 20

20.

What is an electrochemical gradient?

Question 21

21.

What are the three types of ion channels?

a. _______
b. _______  
c. _______ 

Question 22

22.

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

Question 23

23.

What happens when these channels open?

Question 24

24.

What is a graded potential?

Question 25

25.

What triggers an action potential?

Question 26

26.

What occurs during depolarization?

Question 27

27.

What is the all-or-nothing phenomenon?

Question 28

28.

What happens during repolarization?

Question 29

29.

What is hyperpolarization?

Question 30

30.

What is the refractory period?

Question 31

31.

Summarize how neurons create and propagate action potentials.

Do not go forward - stop, here.

Question 32

32.

Broca's Aphasia

What happened to James after his stroke?

Question 33

33.

How does Broca’s aphasia affect language abilities?

Question 34

34.

What are the two main components of the nervous system?

a. _______ 
b. _______ 

Question 35

35.

What is the primary function of the CNS?

Question 36

36.

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

Question 37

37.

What does the caudal end of the neural tube form?

Question 38

38.

What are the three primary brain vesicles?

a. _______ 
b. _______ 
c. _______ 

Question 39

39.

When do these vesicles begin to form?

Question 40

40.

What do the primary vesicles develop into?

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

Question 41

41.

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

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

Question 42

42.

What function does the cerebellum serve?

Question 43

43.

What function does the brainstem serve?

Question 44

44.

What are the three components of the brainstem?

a. _______ 
b. _______ 
c. _______ 

Question 45

45.

What structures are included in the diencephalon?

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

Question 46

46.

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

Question 47

47.

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

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

Question 48

48.

What is the role of Broca’s area?

Question 49

49.

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

Question 50

50.

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

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

Question 51

51.

Why is pain considered a useful sensation?

Question 52

52.

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

Question 53

53.

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

Question 54

54.

Describe: Pain Threshold

Question 55

55.

Describe: Pain Tolerance.

Question 56

56.

What occurs at the cellular level when pain is experienced?

Question 57

57.

How do pain signals travel between neurons?

Question 58

58.

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

Question 59

59.

How does the efferent division respond to pain signals?

Question 60

60.

What are the five steps of the reflex arc?

_______ 
_______ 
_______ 
_______ 
_______ 

Question 61

61.

What happens to pain signals once they reach the brain?

Question 62

62.

Why does the brain's processing of pain matter?

Question 63

63.

What are reflex reactions?

Question 64

64.

What is the pathway involved in reflex reactions?

Question 65

65.

How do reflex arcs function?

Question 66

66.

What are the two types of reflexes?

a. _______ 
b. _______ 

Question 67

67.

What is an example of a conditioned reflex?

Question 68

68.

How does the brain interact with reflex reactions?

Question 69

69.

Why are reflex reactions important for survival?