Nervous System

Question 1

The system in the body that is made up of the brain, brain stem , spinal cord, nerves,ganglia, and parts of the receptor organs and that receives and interpret stimuli

Answer 1

Nervous system

Question 2

The organization of the nervous system are

Answer 2

Central nervous system (CNS)

Peripheral nervous system (pns)

Question 3

The brain, brain stem, and spinal cord make up what nervous system

Answer 3

Central nervous system

Question 4

The somatic (cranial nerves)(spinal nerves) and autonomic (bipolar)(unipolar)(multipolar) make up the

Answer 4

Peripheral nervous system

Question 5

Every component of the CNS and rns is composed primarily of

Answer 5

Neurons

Question 6

A group of multiple neurons

Answer 6

A nerve

Question 7

A single nerve that acts as a conduit to conduct a signal or impulse in ONLY one direction

Answer 7

Neuron

Question 8

What is a neuron composed of

Answer 8

Cell body, dendrites, axon

Question 9

The classification of the nervous system is based on

Answer 9

Physiological (functional) and anatomical (structural)

Question 10

In the physiological classification what neuron conducts an impulse toward the CNS and also called sensory neurons

Answer 10

Afferent neuron

Question 11

In the physiological classification what neuron conducts an impulse away from CNS and also called the motor neurons

Answer 11

Efferent neuron

Question 12

In the physiological classification what neuron conduct impulses between other neurons also found only in the brain & spinal cord

Answer 12

Interneuron

Question 13

In the anatomical classification what have TWO extensions from the cell body, one from each end, one is the axon 2nd is a dendrite and is found I the eyes, nose, ears (afferent,sensory)

Answer 13

Bipolar

Question 14

In the anatomical classification what has ONE extension from the cell body. The extensions divides into 2 branches but only one is associated with the dendrite and is found in sensory neurons such as temp, touch, and pain

Answer 14

Unipolar

Question 15

What is the anatomical classification that has many extensions from the cell body , only one is the axon and is found everywhere

Answer 15

Multipolar

Question 16

What are the nervous system functions

Answer 16

Gather information
Transport info
Interpret info

Question 17

The info must be in a form the body can transport and read like what

Answer 17

TV/ SATELLITE signals

Question 18

What is a form of signal the nervous signal use

Answer 18

Action potential

Question 19

What is also called a nerve impulse or signal and described as a wave of electromagnet activity that allows a neuron to carry signal over a distance and generated by the diffusion of specific ions in & out the neuron is

Answer 19

Action potential

Question 20

Most substances in nature are what and have neither a positive or negative charge

Answer 20

Neutral

Question 21

If something have a charge it has

Answer 21

Polarity

Question 22

In action potential the insides of all cells in the body are what when compared to the outside of the cell

Answer 22

Negative

Question 23

In action potential what is the polarity of the inside of a cell

Answer 23

Negative polarity

Question 24

What is maintained by protein pumps in the cell membrane that uses ATP ex ATPhase pump s (active transport)

Answer 24

Internal negative polarity

Question 25

allows diffusion of specific ions to occur thru protein channels from high concentration to low Changes polarity inside cell are results from what

Answer 25

When a stimulus comes in contact with a neurons dendrites/cell body

Question 26

In action potential a stimulus can come from

Answer 26

``` External environment (hot/cold light, movement) Internal environment (brain making impulse ,stretch of an organ, muscle ```

Question 27

What is a change in polarity called

Answer 27

Electrochemical activity

Question 28

What does NA+\k+ pump use

Answer 28

Active transport

Question 29

Where does action potential occur ONLY in neurons

Answer 29

The axons

Question 30

What is the extension of the cell body only one per neuron surrounded by layers of a phospholipid membrane

Answer 30

Axons

Question 31

What are the layers of phospholipid membrane and are produced by non- neuron cell

Answer 31

Myelin sheath

Question 32

The action potential that moves to the next area of the axon that is un-myelinated

Answer 32

Node of ranvier

Question 33

The area of the axon where the action potential moved from is now refractory which means

Answer 33

It cannot generate another action potential for a specific time and the AP Can only move in one direction

Question 34

To connect all parts of the body to CNS. In the CNS processes the incoming data. To send signal back to the rest of the body to direct activities.

Answer 34

Functions of action potential

Question 35

During the function of a action potential each step of it there will be connections between what

Answer 35

Neurons

Question 36

In the neuronal arrangement the 1st neuron before the synapse is called

Answer 36

Pre-synaptic neuron

Question 37

The 2nd neuron after the synapse is called

Answer 37

The post synaptic neuron

Question 38

In a neuronal arrangement each time there is a neuronal connection there is a synapse which means what is used

Answer 38

Neurotransmitter

Question 39

In signal transmission when an impulse reaches the end of the pre-synaptic neuron (1st neuron ) what happens

Answer 39

Neurotransmitter released into synapse. Release from vesicles (packages) Exocytoces. How strong the impulse is determines the amount of neurotransmitter released

Question 40

In signal transmission the greater the concentration of neurotransmitter released into the synapse means

Answer 40

The faster it DIFFUSES across the synapse. (Speed) | The greater the response of the post-synaptic neuron (intensity)

Question 41

The nervous system produces how many different types of neurotransmitters

Answer 41

30

Question 42

What type of neurotransmitters are based on substances they are synthesis from

Answer 42

Products of metabolism Modified amino acids I unmodified amino acids Peptides