Splh 620 exam 1 questions - Study guides, Class notes & Summaries

3 types of neuroglia - Answer astrocytes, oligodendrocytes, microglia Astrocytes CNS - Answer Clean up local debris including dead neurons Provide nutrients Regulate chemical composition of extracellular fluid Oligodendrocytes CNS - Answer Provide support for axons Produce myelin sheath to cover axons (on neuron) in CNS, covering multiple at a time Schwann Cells PNS - Answer Support cells Produce myelin to cover axons (on neuron) in PNS, only covers one axon at a time Each cell pro...

Descartes came up with ____________. Based on ______________. - ANSWER-first modern model of nervous system; hydraulics What was Descartes thinking behind hydraulics model of nervous system? - ANSWER-The water would move to a joint and the water would move that joint and then the water would leave returning the joint back to its resting position. He believed that the brain thought about where the water should go and then it would go there. To him the spinal cord was just a tube, not a central...

What was Descartes thinking behind hydraulics model of nervous system? - ANSWER-The water would move to a joint and the water would move that joint and then the water would leave returning the joint back to its resting position. He believed that the brain thought about where the water should go and then it would go there. To him the spinal cord was just a tube, not a central player in the movements. Descartes model caused three things to occur: - ANSWER-1. firmly separated mind and body, allo...

SPLH 620 EXAM 1 (KU) QUESTIONS AND ANSWERS

What does the nervous system do? - ANSWER-1. controls and coordinates all body functions 2. senses and interprets information from outside the body 3. transmits info 4. integrate info 5. generate comands Parts of a neuron - ANSWER--cell body -dendrite -axon Cell body (soma) - ANSWER-integrates signal Dendrites - ANSWER-a neuron's bushy, branching extensions that receive messages and conduct impulses toward the cell body Axons - ANSWER-a part of a neuron that carries impulses a...

SPLH 620- EXAM #1 QUESTIONS AND ANSWERS

3 types of neuroglia - ANSWER-astrocytes, oligodendrocytes, microglia Astrocytes CNS - ANSWER-Clean up local debris including dead neurons Provide nutrients Regulate chemical composition of extracellular fluid Oligodendrocytes CNS - ANSWER-Provide support for axons Produce myelin sheath to cover axons (on neuron) in CNS, covering multiple at a time Schwann Cells PNS - ANSWER-Support cells Produce myelin to cover axons (on neuron) in PNS, only covers one axon at a time Each cell pro...

Schwann Cells PNS - ANSWER-Support cells Produce myelin to cover axons (on neuron) in PNS, only covers one axon at a time Each cell provides myelin for one neuron What is exocytosis? - ANSWER-presynaptic process - when the synaptic vesicles are released and fuse to membrane Depolarization - ANSWER-Becomes more positive leading to action potential -70 to -55 Hyperpolarization - ANSWER-membrane potential becomes more negative, less likely for action potential -120 Spatial summation -...