What makes you nervous
- 2. Organization of the Nervous system Match the word with the picture and definition WORD PICTURE DEFINTION branch off from your Peripheral Nervous spinal cord and System (PNS) supply the rest of your body. this system is responsible for the Central Nervous bodily functions System (CNS) which are not under conscious control
- 3. Organization of the Nervous system Cont.
- 4. Organization of the Nervous system Cont.
- 5. Organization of the Nervous system Cont.
- 6. Organization of the Nervous system Cont.
- 7. Cells of the nervous System Match the five major types of glia word to where to find them in the body word defection 1. Astrocytes Lie clustered around nerve cell bodies 2. Microglia Only in the peripheral nervous system 3. Ependymal cells Stationary cells found in the central nervous system 4. Oligodendrocytes Found only in the central nervous system 5. Schwann cell Forming thin sheets that line fluid- filled cavities in the brain and spinal cord.
- 8. Cells of the nervous System There are three types of neurons do you know their functions and what they look like? functions word picture Neuron with only 1. Multipolar one extension from the cell body Neuron with only 2. Bipolar one axon but several dendrites Neuron with only 3. Unipolar one dendrite and only one axon
- 9. Nerve Impulses Match the world with the picture and definition World Picture Definition When the membrane potential of a cell can go for Resting a long period of Membrane time without Potential changing significantly, it is referred to as a resting potential or resting The difference in Membrane electrical potential Potential between the interior and the exterior of a biological cell.
- 10. Nerve Impulses Can you tell the difference between the two potentials? Match them and find out. world Definition Is a term suggests, Local potential the membrane potential of an active neuron, that is, one that is conduction an impulse A slight shift away Action potential from the Rmp in a specific region of the plasma membrane is often called
- 11. The Synapse Match the world with the definition is a minute gap between nerve A Depends on a number cells which transmits crucial Synapse of factors, including information through the nervous how much system. The goal of this network neurotransmitter is is to perform a similar "synaptic" released and the action function between biology of the neurotransmitter instructors of all levels and on the post-synaptic locations. neuron. Neurotra Chemicals released Summation nsmitters from one neuron at the presynaptic nerve terminal.
- 12. DATA 30 25 20 Time of muscle 15 contraction (s) Time of stimulus 10 (s) 5 0 Kick 1 Kick 2 Kick 3 Kick 4 Kick 5
- 13. DATA 16 14 12 10 Time of muscle 8 contraction (s) 6 Time of stimulus (s) 4 2 0 Kick 1 Kick 2 Kick 3 Kick4 Kick 5
- 14. 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)