does sensory neuron (pseudobipolar neuron) contain dendrite or only axon is present?

Question

i still dont understand. does it mean dendrite is the nerve ending, then on the way to the cell body it transform into axon, then when after passing through cell body, it continues as an axon?

Answer 1

Ok, let's visualize a typical neuron first. A typical neuron has a large cell body, with many short dendrites leading to it, and one large axon that projects away from it.

A pseudobipolar neuron has BOTH dendrites and axons (i.e. there are many). The only reason that it is called pseudobipolar is because there is one prominent dendrite and it is very large and long, and one prominent axon that is also large and long.

I would try to think of it like a big one-way street (the street being the dendrite) leading to a house (which would be the cell body), and a big one-way street leading away from the house (which would be the axon). However, where the house is, there are also many other houses around it, and sidewalks exist to allow residents to walk to each others' houses -- these represent interconnecting synapses that allow many neurons to communicate with one another at the ganglia (collection of houses).

This is why they are called "PSEUDO" bipolar, because they do have many other communications, not just the "main" dendrite and axon (big streets leading to and from the house). A TRUE BIPOLAR neuron has ONLY one dendrite and ONLY one axon -- i.e. the sidewalks leading to other houses do not exist, and only the big streets are there.

Answer 2

dendrites are located at the far end of the axon
( nucleus ( nerve cell ).==>.axon .==>.. dendrites ( nerve endings )

Sensory Neurone

The nerve impulses, travel along of a sensory neurone. ( axon)
A stimulus causes the impulse to be produced by a sense organ. (skin / ears / eyes / tongue / nose)

Dendrites and Synapses are both nerve endings at the ends of neurones.

Dendrites are located at the ends that receive the nerve impulses (see above).

Synapses are found at the transmitting ends of the neurone where the impulse is transferred to another neurone.

Synapses, use chemicals to transmit their electrical signal.

hope this helps

>^,,^<

Answer 3

pseudobipolar neurons are a subclass of bipolar neurons. bipolar neurons have limited dendritic branching and a short axon arising from opposite ends of the cell body.

Answer 4

Tuesday I think! :o)