Module 5- Nervous System

Question 0

What is the Soma?

Answer 0

Cell body of the neuron (similar like nucleus) responsible for maintaining all of that cells vital functions(life of the cell)

Question 1

What are Dendrites?

Answer 1

Finger-like branches that receives messages from other neurons

Question 2

What is the axon?

Answer 2

Tubelike structure that branches off from the soma, connect to & carries the messages (send messages) to other neurons.

Question 3

What is the glial cells?

Answer 3

Cells that provide support for the neurons, insulation, and speeds up neuro impulse.

Question 4

What is the myelin sheath?

Answer 4

Fatty substances produced by certain glial cells (that coat the axons of neurons to insulate protect and speed at the neural impulse)

Question 5

What is neurotransmitter communication?

Answer 5

• Electrical impulse that goes through all different neurons to send a message.
• chemical found in the synaptic vessicle that when released has an effect on the next cell.

Question 6

What is a synapse(synaptic gap)?

Answer 6

Microscopic fluid filled space between the synaptic knob of one cells and the dendrites or surface wall of the next cell.

Also between the axon of one neuron and dendrites of another.

Question 7

What are receptor sites?

Answer 7

Three dimensional proteins that fit specific neurotransmitters. (Puzzle pieces.)

Question 8

What is resting potential?

Answer 8

The state of the neuron when not firing a neural impulse is. Neuron isn’t firing and it is a negative electrical charge.

Question 9

What is action potential?

Answer 9

When a neuron impulse is firing or released, sends a message. Positively charged.

Question 10

What is an agonist?

Answer 10

Chemical substances that mimics or enhance the effects of neurotransmitters

Question 11

What is in antagonist?

Answer 11

Chemical substances that block a reduce the cells response, the effects of a neurotransmitter

Question 12

What is a synaptic vesicles?

Answer 12

Small sacks Into the axon.

Question 13

What is the central nervous system?

Answer 13

Nervous system that involves brain and spinal cord

Question 14

What is the peripheral nervous system?

Answer 14

All the nerves & neurons that are not a part of the spinal cord.

Question 15

What is the somatic nervous system?

Answer 15

Division of the peripheral nervous system, consisting of nerves that carry information from the senses of the CNS to the voluntary muscles of the body.

Question 16

What is the autonomic nervous system?

Answer 16

Division of the peripheral nervous system consisting of nerves that control all the involuntary muscles, organs, and glands.

Question 17

What is the parasympathetic nervous system?

Answer 17

Part of the atomic nervous system that restores the body to normal functioning after arousal and is responsible for day-to-day functioning of the organs and glands.

Ex: breathing regular , heart rate, daily functions.

Question 18

What is a sympathetic nervous system?

Answer 18

Part of the atomic nervous system that is responsible for reacting to stressful events and bodily arousal.

Ex: fight or flight, stressed response, (evolutionary adaptive)