Nervous tissue - Sketch and label the structure of a typical neuron, describe the functions of each component, and classify neurons on the basis of their structure and function

14 important questions on Nervous tissue - Sketch and label the structure of a typical neuron, describe the functions of each component, and classify neurons on the basis of their structure and function

What are the four general regions of a neuron?

  • A large cell body
  • Several short, branched dendrites
  • A single, long axon
  • Terminal branches of the axon called telodendria

What is an axon terminal, or synaptic terminal?

An axon terminal, or synaptic terminal plays a role in communication with another cell. A synapse is where a neuron communicates with another cell, for example a neuron.

What is axonal (axoplasmic) transport?

The movement of materials between the cell body and axon terminals is called axonal (axoplasmic) transport.
  • Higher grades + faster learning
  • Never study anything twice
  • 100% sure, 100% understanding
Discover Study Smart

What are the four categories of neurons when talking about the relationship to dendrites and axons?

  • Anaxonic neurons
  • Bipolar neurons
  • Unipolar neurons
  • Multipolar neurons

What are bipolar neurons?

Bipolar neurons have two distinct processes, one dendrite and one axon, with the cell body between the two. Bipolar neurons are rare.

Where are bipolar neurons located?

Bipolar neurons are located in special sense organs, where they relay information about sight, smell, or hearing from receptor cells to other neurons.

What are unipolar neurons?

In a unipolar neuron, or pseudounipolar neuron, the dendrites and axon are continuous and the cell body lies off to one side.

What are the three categories of neurons when talking about function?

  • Sensory neurons
  • Motor neurons
  • Interneurons

What are somatic sensory neurons?

Somatic sensory neurons monitor the outside world and our position within it.

What are visceral sensory neurons?

Visceral sensory neurons monitor internal conditions and the status of other organ systems.

How are sensory receptors categorized?

  • Interoreceptors
  • Exteroreceptors
  • Proprioceptors

What are visceral motor neurons?

Visceral motor neurons innervate all peripheral effectors other than skeletal muscles.

Name the structural components of a typical neuron.

The structural components of a typical neuron include a cell body (or soma) (which contains the nucleus and perikaryon), dendrites (some with dendritic spines), an axon, telodendria, Nissl bodies, neurofilaments, intermediate neurotubules, neurofibrils, axoplasm, axolemma, initial segment, axon hillock, and collaterals.

Are unipolar neurons in a tissue sample more likely to function as sensory neurons or motor neurons?

Because most sensory neurons of the PNS are unipolar, these neurons most likely function as sensory neurons.

The question on the page originate from the summary of the following study material:

  • A unique study and practice tool
  • Never study anything twice again
  • Get the grades you hope for
  • 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
Trustpilot Logo