Organization of the Nervous system

Match the word with the picture and definition

WORD PICTURE DEFINTION

Central Nervous System (CNS)

Peripheral Nervous System (PNS)

this system is responsible for the bodily functions which are not under conscious control

branch off from your spinal cord and supply the rest of your body.

Organization of the Nervous system Cont.

Organization of the Nervous system Cont.

Organization of the Nervous system Cont.

Organization of the Nervous system Cont.

Cells of the nervous SystemMatch the five major types of glia word to where to find them in the

body

word defection

1. Astrocytes

2. Microglia

3. Ependymal cells

4. Oligodendrocytes

5. Schwann cell

Lie clustered around nerve cell bodies

Only in the peripheral nervous system

Stationary cells found in the central nervous system

Found only in the central nervous system

Forming thin sheets that line fluid-filled cavities in the brain and spinal cord.

Cells of the nervous System

There are three types of neurons do you know their functions and what they look like?

wordfunctions picture

1. Multipolar

2. Bipolar

3. Unipolar

Neuron with only one extension from the cell body

Neuron with only one axon but several dendrites

Neuron with only one dendrite and only one axon

Nerve Impulses

World Picture Definition

Match the world with the picture and definition

Resting Membrane Potential

Membrane Potential

When the membrane potential of a cell can go for a long period of time without changing significantly, it is referred to as a resting potential or resting

The difference in electrical potential between the interior and the exterior of a biological cell.

Nerve Impulses

Can you tell the difference between the two potentials? Match them and find out.

world Definition

Local potential

Action potential

A slight shift away from the Rmp in a specific region of the plasma membrane is often called

Is a term suggests, the membrane potential of an active neuron, that is, one that is conduction an impulse

The Synapse

Match the world with the definition

A Synapse

is a minute gap between nerve cells which transmits crucial

information through the nervous system. The goal of this network is to perform a similar "synaptic"

function between biology instructors of all levels and

locations.

Neurotransmitters

Summation

Depends on a number of factors, including

how much neurotransmitter is

released and the action of the neurotransmitter on the post-synaptic

neuron.

Chemicals released from one neuron at the presynaptic nerve

terminal.

DATA

0

5

10

15

20

25

30

Kick 1 Kick 2 Kick 3 Kick 4 Kick 5

Time of muscle

contraction (s)

Time of stimulus

(s)

DATA

0

2

4

6

8

10

12

14

16

Kick 1 Kick 2 Kick 3 Kick4 Kick 5

Time of muscle

contraction (s)

Time of stimulus

(s)

Data Analysis- lab answers

1. the voluntary, when he could see the reflexor about to hit his knee, had a singificantly faster reaction time than when could not see the relexor, and only hear it, the average time it took him to react to the involuntary stimulus was .458 seconds, where the voluntary reaction took only an average of .028 seconds.

2.The speed that travels from the patellar tendon to the spinal cord and back to the quadriceps muscle is 0.08.1m/s

3. the distance was short so the reachtion was faster to respond

4. the speed of the copper wire is 3000000 times faster than the nerve impulse.

5. Yes, individual difference can attributed to any physical difference (body shape/size, muscle mass, physical fitness level)