The Nervous System: This is your Brain

Question 1

What does the nervous system allow our body to do?

Answer 1

Respond to its environment.

Question 2

How many senses do we have?

Answer 2

5

Question 3

Our senses are specialized systems that communicate particular physical _______.

Answer 3

Stimuli.

Question 4

Who/What is the decision maker?

Answer 4

The brain.

Question 5

The nervous system also controls bodily functions such as: name 2 things

Answer 5

1-breathing

2-heart beat

Question 6

The nervous system can also command glands to do what?

Answer 6

Produce more or less of their hormones.

Question 7

What are the 3 main parts of the nervous system?

Answer 7

1-Brain
2-Nerves
3-spinal cord

Question 8

What 3 things help process data? (In the brain)

Answer 8

1-cerebrum
2-cerebellum
3-brainstem

Question 9

What is the cerebrum?

Answer 9

The top/higher part of the brain.

Question 10

What is the cerebellum?

Answer 10

The bottom/lower part of the brain.

Question 11

What is the brain stem?

Answer 11

It’s connected to the brain and the spinal cord.

Question 12

What do nerves do?

Answer 12

They carry messages to and from the brain.

Question 13

What is the spinal cord?

Answer 13

It’s where all the nerves pass info back and forth between the body and the brain.

Question 14

Automatic responses happen in the center, what is this response called?

Answer 14

Reflex.

Question 15

What are neurons?

Answer 15

They are the cells that transmit electro/chemical messages.

Question 16

What are neurons made of? (Name 4 things)

Answer 16

1-Dendrites
2-A cell body
3-An axon
4-Terminals

Question 17

What do dendrites do?

Answer 17

They receive nerve impulses.

Question 18

If the neuron fires a message, the nerve impulse will travel down the ______.

Answer 18

Axon.

Question 19

After traveling down the axon, the nerve impulses will release chemicals at the ______ ______, to do what?

Answer 19

Terminal Buttons to send a message to another neuron..

Question 20

What insulates the electrical messages?

Answer 20

Myelin.

Question 21

What are neuro-transmitters and produces them?

Answer 21

A chemical created by terminals.

Question 22

Whats the synapse?

Answer 22

The space between the two neurons and will connect to another neuron and so on…

Question 23

Nerves contain only _____ of the neurons.

Answer 23

Axons

Question 24

What are nerves?

Answer 24

A bundle of many axons from one or many organs.

Question 25

What are the 2 types of nerves?

Answer 25

1-Sensory Nerves (From body to spinal cord to brain)

2-Motor Nerves(From brain to spinal cord to body)

Question 26

What is the brain and spinal cord bathed in?

Answer 26

Cerebral-spinal fluid and tissue.

Question 27

The brain and spinal cord are encased in ____.

Answer 27

Bones.

Question 28

The cerebrum is divided into how many hemispheres.

Answer 28

2,(right and left)

Question 29

Folds divide into how many lobes?

Answer 29

4, (they each process different types of stimuli).

Question 30

What is the cerebellum?

Answer 30

Balance and coordination.

Question 31

What does the brain stem control?

Answer 31

Involuntary things.

Question 32

The spiral cord is a collection of what?

Answer 32

Nerves, (axons).

Question 33

If you cut or damage badly your spinal cord you can become _________.

Answer 33

Paralyzed.

Question 34

What are reflexes?

Answer 34

Automatic and involuntary impulses.

Question 35

What are reflexes controlled by?

Answer 35

The spinal cord.

Question 36

What are spinal reflexes?

Answer 36

When the spinal cord needs to make a decision fast because you’re in danger.

Question 37

The other involuntary reflexes/movements/things like breathing and heart rate etc is controlled by the _____.

Answer 37

Brain.

Question 38

What Nervous system controls voluntary movements?

Answer 38

The somatic nervous system.