Cell bodies and dendrites of lower motor neurons are found in the ventral horn,

ID: 3521746 • Letter: C

Question

Cell bodies and dendrites of lower motor neurons are found in the ventral horn, which is:

white matter

gray matter

dura mater

nerves

Action potential initiation occurs at the:

dendritic region.

terminal region.

trigger zone.

output region.

Fast axoplasmic transport moves vesicles at about:

0.5 to 5.0 mm/day.

5.0 to 50 mm/day.

50 to 100 mm/day.

200 to 400 mm/day.

Kinesin uses ______ to power its movement.

GDP

GTP

ADP

ATP

The function of astrocytes is to:

conduct action potentials.

release neurotransmitter.

regulate extracellular K+ concentrations.

myelinate axons.

1. Ventral horn is the correct option.

2. Action potential occurs at trigger zone in the neurons.

3. It means the cellular processes responsible for thr movement of cell organelles. It should be 20 to 400 mm/day.

4. Kinesin is a motor protein which moves cargo towards positive end of microtubules. These get energy by ATP molecules.

5. Astrocytes functions in conducting action potential. These are star shaped and present in numerously in brain.

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