Section 1-Chapt.3

Question 0

Neurons

Answer 0

Nerve cells that run through our entire bodies and communicate with each other

Question 1

Central Nervous System

Answer 1

Brain and Spinal Cord

Question 2

Peripheral Nervous System

Answer 2

Nerves cells that send messages between the central nervous system and other parts of the body

Question 3

Cell body

Answer 3

Produces energy that fuels the neurons activities

Question 4

Dendrites

Answer 4

Receives the info from another neuron and passes the message through the cell body

Question 5

Axon

Answer 5

Transmits message away from cell body

Question 6

Myelin

Answer 6

Fatty substance that insulates and protects the axon

Question 7

Axon terminals

Answer 7

Small fibers at the end of the axon

Question 8

Synapse

Answer 8

Junction between the axon terminals of one neuron and dendrites of another

Question 9

Sensory neurons

Answer 9

Nerve cells that carry info received by senses to the central nervous system

Question 10

Motor Neuron

Answer 10

Nerve cells that carry info received from central nervous system to muscles and glands

Question 11

Neurotransmitters

Answer 11

Chemicals that are stored in axon terminals released to help send messages

Question 12

Acetylcholine

Answer 12

Involved in control of muscles
Involved in learning and memory

If decreases formation of memories impaired

Question 13

Dopamine

Answer 13

Involved in motor behavior
Deficiency plays role in Parkinson’s Disease
Excessive amount contributes to schizophrenia

Question 14

Noradrenaline

Answer 14

Preparing the body for action

Question 15

Serotonin

Answer 15

Involved in emotional arousal and sleep

Question 16

Somatic Nervous System

Answer 16

Transmits sensory messages to the CNS.

Question 17

Autonomic Nervous System

Answer 17

Regulates the body’s vital functions

Question 18

Sympathetic

Answer 18

Prepares body for fight or flight

Question 19

Parasympathetic

Answer 19

Called rest and digest response