- Match the information on the left with the correct term on the rightCollection of neuronal cell bodies in the peripheryCollection of axons in the periphery-tract-nerve-ganglion-nucleas
- Increasing membrane resistance will increase the time it takes for an electrical potential to decay (AKA increase tau)
- Match the term on the left with the information on the right. (Choose the single best answer for each and use each answer only once)Internodal region Capacitor Unmyelinated axons K+ leak channelslacks voltage gated Na+ and K+ channels always openstorage of a charge across a non-conducting membraneLoss of charge across a non-conducting mediumAction potentials propagate at 100 m/sOpened by chargeContains voltage gates Na+ and K+ channelsaction potantials propogate at 1 m/s
- What ion and its channel are responsible for providing the positive charge necessary to open voltage gated Ca2+ channels at the axon teminal?
- _____________ nerves carry information ___________ the brain. afferent; toward afferent; away from efferent; away from efferent; toward Choices A and C are both correct Choices B and D are both correct
- Cells that maintain the extracellular environment in the central nervous system by pumping sodium and potassium ions and mopping up excess neurotransmitter are: Astrocytes Schwaan Cells Microglia Oligodendrocytes
- When Na+ channels close, what ion is responsible for bringing the membrane back to resting membrane potential?
- Communism has had a mostly positive affect on ordinary citizens?
- Which of the following was not an agreement made between the Soviets and other Eastern European countries?
- Action potentials will pass much more _________ along a myelinated axon, as opposed to an unmyelinated axon. This is because myelin ______________ membrane resistance.
- In the spinal cord, the axons (conductile regions) are bundled together in regions called:
- Which are true about myelinating glial cells? They provide insulation They process information They physically surround neurons They protect the cells from viruses
- Voltage-gated Na+ channels are.... (select all that apply).-opened by a presence of a negative charge- opened by a presence of a positive charge-always open-gated
- The Soviet Union did not have secure control over its satellite states?
- What is the resting membrane potential?charge?
- If the inside of the neuron were positive, the electrical driving force on sodium would be...
- The primary sensory neurons that carry information about fine touch and proprioception form their synapses in the:
- K+ carries positive charge into the cell and Na+ carries positive charge out of the cell
- The site where the axons (conductile) regions of motor neuron axons cross over the midline is the:
- What ion is responsible for depolarization?Cl- Na+ K+ A-