C1. P1&2

Question 1

What is the nervous system?

Answer 1

The body’s network of specialized cells, called neurons, which carry information and signals all over the body

Question 2

What are the three functions of the nervous system?

Answer 2

Translates input about the external world, integrates incoming input with previous input, and organizes interpretations and responses

Question 3

Which term best describes the nervous system?

Answer 3

Processing

Question 4

What is biological psychology?

Answer 4

How physical structures and processes relate to psychological processes and behavior

Question 5

What are neurons?

Answer 5

Cells that make up the nervous system

Question 6

What three things can neurons do?

Answer 6

Remain at rest, fire to send messages, and receive incoming messages

Question 7

What is a resting neuron?

Answer 7

A neuron not sending signals

Question 8

Does a resting neuron have a positive or negative charge?

Answer 8

Negative

Question 9

Does a neuron have to be positive or negative to fire?

Answer 9

Positive

Question 10

What are three things resting neurons can do?

Answer 10

Prepare to fire, recover from firing, or creating materials

Question 11

What are excitatory signals?

Answer 11

A yes fire

Question 12

What are inhibitory signals?

Answer 12

A no fire

Question 13

What are the three types of neurons?

Answer 13

Sensory neurons, motor neurons, and interneurons

Question 14

What are sensory neurons?

Answer 14

Can receive messages signals from the cells of sensory organs and then translate these signals into the language of the nervous system

Question 15

What are motor neurons?

Answer 15

Specialized cells that can activate the body’s muscles allowing us to move our bodies

Question 16

Do sensory neurons hear or speak the senses?

Answer 16

They hear the senses and translate it to the neurons

Question 17

DO motor neurons hear or speak the sense?

Answer 17

Motor neurons hear the translation and speak it

Question 18

Where are interneurons found?

Answer 18

Brain and spinal cord

Question 19

Do interneurons speak or hear the senses?

Answer 19

The speak the translation

Question 20

What do interneurons do?

Answer 20

Speak to other neurons in the nervous system

Question 21

What structures do all neurons have?

Answer 21

Dendrites, cell body. and the axon

Question 22

What are dendrites?

Answer 22

Dendrites are the structures branching off the cell. The Dendrite is the part of the neuron the receives input

Question 23

What is the cell body?

Answer 23

The Cell Body, sometimes called a Soma, contains the nucleus of the cell. It’s main job is to keep the cell alive

Question 24

What is the axon hillock?

Answer 24

Where the cell body and axon connect. It’s most important function is to control the firing of the neuron

Question 25

What is the axon?

Answer 25

The Axon refers to the part of the neuron that carries signals away from the cell body and sends them to other cells. This allows the neuron to “speak” to other neurons, muscles, organs, or glands

Question 26

What are axon terminals?

Answer 26

At the end of axon branches are bulbs called Axon Terminals. Axon terminals contain chemicals that are released when the neuron fires

Question 27

What are vesicles?

Answer 27

The fluid filled sacks within the axon terminal. The vesicles contain the neurotransmitters

Question 28

What are neurotransmitters?

Answer 28

The chemical messengers in the brain

Question 29

What is 90% of the brain?

Answer 29

Glia cells

Question 30

What are glia cells?

Answer 30

Cells that provide neurons with nutrients, support, protection, myelinate axons, and plays a role in creating new neurons

Question 31

What does the myelin sheath do?

Answer 31

Insulates axon fibers which increases the speed of the neural signal as it travels along the axon