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What are neuron's short arms called?
Dendrites
What is a short hair like projection on a cell's surface that are composed of microtubules?
flagella
What are the short strands branching out from a neuron that carries messages to the cell body?
dendrites
Short hairlike projection called enablethe motion of some eukaryotic cells?
flagella
What are the short strands branching out from a neuron that carry message to the cell body called?
dendrites
What is Melzack and Wall's gate control theory?
Melzack and Wall's gate control theory is essentially the idea that there are large myelinated fibers that synapse onto the projection neuron. When pain is sensed, this projection neuron normally has increased activity, which activates a C fiber (an unmyelinated type of fiber that is responsible for the transmission of prolonged, dull pain). If the large myelinated fibers are stimulated, though, causing an increase in their activity, they activate an inhibitory interneuron which inhibits the activity in the C fiber and the projection neuron, cutting of the signal of pain. So, the idea is, if the large fibers remain unstimulated, the pain signal will be propagated, but if they are activated, they act as an electrical gate, blocking the transmission of pain up the C fiber.
What are short thin numerous projection from a cell that wave in a back and forth motion?
Cilia.
What are the short fibers that extend from the neuron called?
They are called dendrites
What condition is neuron in when the outside of the neuron has a net positive charge and the inside has net negative charge?
This is called the resting potential (inactive state) of the neuron. However, when a neurotransmitter binds to receptors, electrical stimulus is applied, etc. to induce an opening of ion channels in the membrane of the neuron, positive ions rush into the neuron from the outside to the inside, and result in a sharp increase of the positive charge density (due to more positive ions) inside the neuron. Beyond a certain threshold, this can induce the creation of an action potential, causing the neuron to fire. After the action potential is created, and the neuron fires, there is a short refractory period where the neuron cannot be fired again due to stimuli, when positive ions are pumped back out of the neuron, negative ions are brought into the neuron, and then the ion channels close, leaving the neuron in a polarized state, and returning it to a resting potential.
What are the three types of projection maps are?
Mercator Projection, Interrupted Projection, Robinson Projection
Is the spine projection or depression?
A meatus is an opening; therefor, it's a depression, not a projection.
Where is the neuron?
The Inter-neuron (also known as the local circuit neuron, relay neuron or the association neuron) is the neuron which connects the afferent and the efferent neurons in the neural pathways.
