Nervous System

Question 1

What is the function of the Nervous System?

Answer 1

To be the control/communication center of the body.

Question 2

What are the two parts of the Nervous System?

Answer 2

Central and Peripheral Systems

Question 3

What are Neurons?

Answer 3

Nerve cells used to transmit electrical impulses throughout the body. They are also the building blocks of the Nervous System.

Question 4

What are the two organs of the Central Nervous System?

Answer 4

Brain and Spinal Cord

Question 5

What is the function of the Central Nervous System?

Answer 5

To receive information from the body parts and send out directions.

Question 6

Where is the brain located?

Answer 6

The Cranium

Question 7

What makes up the brain?

Answer 7

Gray and White Matter

Question 8

What are the three functions of the brain?

Answer 8

To control the Nervous System, send messages through neurons, and tell the body how to react.

Question 9

How many neurons does the brain contain?

Answer 9

100 billion neurons

Question 10

What is the Cerebrum?

Answer 10

The biggest part of the brain.

Question 11

Where does collected information arrive?

Answer 11

The Cerebrum (It also redirects the info)

Question 12

What does the Cerebrum control?

Answer 12

The Cerebrum controls feelings, movement, intelligence, memory, emotions, and speech.

Question 13

What are the four lobes of the brain?

Answer 13

Pariental, Frontal, Temporal, and Occipital

Question 14

What is the function of the Pariental Lobe?

Answer 14

To Process information with touch, temperature, and pain.

Question 15

What is the function of the Frontal Lobe?

Answer 15

To reason and decide.

Question 16

What is the function of the Temporal Lobe?

Answer 16

To help with emotion, memory, language, and hearing.

Question 17

What is the function of the Occipital Lobe?

Answer 17

Vision

Question 18

Where is the Cerebellum?

Answer 18

In the back of the brain under the cerebrum.

Question 19

What is the function of the Cerebellum?

Answer 19

To control coordination and balance.

Question 20

What connects the Brain to the Spinal Cord?

Answer 20

The Brain Stem

Question 21

Where is the brain stem located?

Answer 21

In the back of the brain and in front of the cerebellum.

Question 22

What does the brain stem control?

Answer 22

It controls automatic functions, such as breathing and digestion.

Question 23

What is the function of the Spinal Cord?

Answer 23

To transmit electric impulses between the brain and the body.

Question 24

What is the Spinal Cord made of?

Answer 24

Nerve Tissue

Question 25

How is the Spinal Cord divided?

Answer 25

It is divided into the Cervical Vertebrae, Thoracic Vertebrae, Lumbar Vertebrae, and the Sacrum.

Question 26

What is the main part of the Peripheral Nervous System?

Answer 26

The Spinal Cord.

Question 27

What is included in the Peripheral Nervous System?

Answer 27

Nerves throughout the body.

Question 28

What does the Peripheral Nervous System connect?

Answer 28

It connects the Central Nervous System to the body.

Question 29

What are the two types of nerves that are in the Peripheral Nervous System?

Answer 29

The cranial and spinal nerves.

Question 30

What do the cranial nerves do?

Answer 30

They connect the brain to the head/neck.

Question 31

What do the spinal nerves do?

Answer 31

They connect the Spinal Cord to other parts of the body.

Question 32

How many pairs of cranial nerves do we have?

Answer 32

12 pairs

Question 33

How many pairs of spinal nerves do we have?

Answer 33

31 pairs

Question 34

What are the two types of divisions?

Answer 34

Sensory and Motor Divisions

Question 35

What do sensory divisions do?

Answer 35

To transmit messages from the body to the brain and spinal cord.

Question 36

What is sensory division divided into?

Answer 36

The Automatic and Somatic Nervous Systems.

Question 37

What do motor divisions do?

Answer 37

Transmit messages from the brain and spinal cord to the muscles and organs.

Question 38

What is the function of the Somatic Nervous System?

Answer 38

To control voluntary muscles.

Question 39

What is the function of the Automatic Nervous System?

Answer 39

To control involuntary functions like heart rate and blood flow.

Question 40

What is the Automatic Nervous System divided into?

Answer 40

The Sympathetic and Parasympathetic Nervous Systems.

Question 41

What does the Sympathetic Nervous System provide?

Answer 41

The Fight or Flight response.

Question 42

What does the Sympathetic Nervous System do?

Answer 42

It increases blood pressure, heart rate, etc. to deal with threat.

Question 43

What does the Parasympathetic Nervous System do?

Answer 43

It calms the body down to normal after danger or activity passes.

Question 44

What does the Parasympathetic Nervous System maintain?

Answer 44

It maintains normal body functions.

Question 45

What are Reflexes?

Answer 45

They are unconscious, automatic responses to stimuli.

Question 46

What are reflexes controlled by?

Answer 46

They are controlled by the Spinal Cord.

Question 47

What are the two types of reflexes?

Answer 47

Somatic and Autonomic.

Question 48

What is the purpose of Somatic Reflexes?

Answer 48

To respond to a stimuli in the external world.

Question 49

What is the purpose of Autonomic Reflexes?

Answer 49

To respond to regulate actions of internal organs.

Question 50

What do both reflexes have in common?

Answer 50

They both send signals to the Spinal Cord.

Question 51

When does the brain get involved (Reflexes)?

Answer 51

After the threat has been avoided.

Question 52

What do Somatic Reflexes do?

Answer 52

They protect us.

Question 53

What do Autonomic Reflexes do?

Answer 53

They maintain homeostasis.