5 Written questions
5 Matching questions
- How do action potentials code info?
- What is the synaptic cleft?
- What happens when the action potential permeates?
- What are the cells that remove cell debris generated in normal cell death and in degenerating brain tissue/cell death due to brain injury?
- What are the steps in the process of synapse and neurotransmitter release?
- a space between the
bouton of one neuron and the cell body, dendrite or axon or another neuron
or the space between the bouton and the cell membrane of a muscle fiber neuron to muscle synapse
- b 1. AP arrives at the terminal bouton
2. this causes depolarization of presynaptic membrane
3. Influx of calcium (CA++) from synaptic cleft
activates neurotransmitter release from the synaptic vessicles
- c by response frequency
- d microglia
- e positively charged sodium ions leak into the cell in great numbers and membrane becomes more positive/less negative by at least 30 mV
5 Multiple choice questions
- they hold neurons in place.
- conductile segment
- 2 - 100 meters/sec.
5 True/False questions
What is the termination of a nerve fiber (and its branches) on a muscle? → -70mV
When are pathways in the CNS fully myelinated? → 2 years of age
A strong stimulus will evoke generation of ____ APs per units of time → Neuron fluid inside is more negative than fluid outside a neuron.
When are they released? → at a synapse
By providing insulation, glial cells prevent _____ → negative in resting cell