what makes you nervous
Post on 29-Jul-2015
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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.
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
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5
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Kick 1 Kick 2 Kick 3 Kick 4 Kick 5
Time of muscle
contraction (s)
Time of stimulus
(s)
DATA
0
2
4
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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)
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