1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Liula [17]
3 years ago
5

What are the applications of human nervous cells?

Biology
1 answer:
Andreyy893 years ago
5 0

The human body is made up of trillions of cells. Cells of the nervous system, called nerve cells or neurons, are specialized to carry "messages" through an electrochemical process. The human brain has approximately 86 billion neurons. To learn how neurons carry messages, read about the action potential.

Neurons come in many different shapes and sizes. Some of the smallest neurons have cell bodies that are only 4 microns wide. Some of the biggest neurons have cell bodies that are 100 microns wide. (Remember that 1 micron is equal to one thousandth of a millimeter!).

Neurons are similar to other cells in the body because:

Neurons are surrounded by a cell membrane.

Neurons have a nucleus that contains genes.

Neurons contain cytoplasm, mitochondria and other organelles.

Neurons carry out basic cellular processes such as protein synthesis and energy production.

However, neurons differ from other cells in the body because:

Neurons have specialize cell parts called dendrites and axons. Dendrites bring electrical signals to the cell body and axons take information away from the cell body.

Neurons communicate with each other through an electrochemical process.

Neurons contain some specialized structures (for example, synapses) and chemicals (for example, neurotransmitters).

The Neuron

neuron

One way to classify neurons is by the number of extensions that extend from the neuron's cell body (soma).

bipolar neuron

Bipolar neurons have two processes extending from the cell body (examples: retinal cells, olfactory epithelium cells).

Pseudounipolar cells (example: dorsal root ganglion cells). Actually, these cells have 2 axons rather than an axon and dendrite. One axon extends centrally toward the spinal cord, the other axon extends toward the skin or muscle.

Multipolar neurons have many processes that extend from the cell body. However, each neuron has only one axon (examples: spinal motor neurons, pyramidal neurons, Purkinje cells).

Neurons can also be classified by the direction that they send information.

Sensory (or afferent) neurons: send information from sensory receptors (e.g., in skin, eyes, nose, tongue, ears) TOWARD the central nervous system.

Motor (or efferent) neurons: send information AWAY from the central nervous system to muscles or glands.

Interneurons: send information between sensory neurons and motor neurons. Most interneurons are located in the central nervous system.

Check out the Gallery of Neurons to see some pictures of real neurons or "Sidewalk Cells" to see photographs of neurons on the street.

Hear It

"Neuron" | "Axon" | "Dendrite" |

"Nissl" | "Mitochondria" | "Endoplasmic reticulum"

There are several differences between axons and dendrites:

You might be interested in
Forming a hypothesis is the first step of the scientific method.
exis [7]

Answer:

The first step in the Scientific Method is to make objective observations. These observations are based on specific events that have already happened and can be verified by others as true or false. Step 2. Form a hypothesis.

Explanation:

The hypothesis is an educated guess as to what will happen during your experiment. The hypothesis is often written using the words "IF" and "THEN." For example, "If I do not study, then I will fail the test." The "if' and "then" statements reflect your independent and dependent variables

4 0
3 years ago
1) Why is the epicenter of the earthquake limited to two locations after you have data for him to seismograph stations?
frez [133]

Answer:

Answer for question 2:

It is important to receive data from three separate locations because the more we know  about the seismic waves and the places that they are more we gain for learning  about them.

Explanation:

7 0
3 years ago
Which is NOT a source of genetic variation among individuals?
mafiozo [28]
I believe its D I hope it helps
8 0
3 years ago
Read 2 more answers
All of the following are sources of energy for humans during exercise EXCEPTa.stored ATP.b.alcoholic fermentation.c.lacticacid f
marshall27 [118]

Answer:Letra B

Explanation:

Fementaçã alcoo

5 0
2 years ago
One of the first breakthroughs in biotechnology was the discovery of the gene that makes insulin. What was the first step of thi
Elis [28]

the answer is a took the test

5 0
3 years ago
Read 2 more answers
Other questions:
  • What happens to a cell in the S phase?
    12·2 answers
  • This image is of an insertion
    11·1 answer
  • What must a single-celled organism do before it can reproduce​
    7·2 answers
  • how could incoming radiant energy from the sun be affected as a result of changes in albedo in the Arctic region?
    13·1 answer
  • What vascular plant tissue is made of dead cells
    9·1 answer
  • Process by which mineral salts enter into the plant​
    12·1 answer
  • What materials are transported in a plant
    14·1 answer
  • 19) Define the following terms: -<br>(1)<br>Species<br>(ii)<br>Binomial nomenclature:​
    8·1 answer
  • What structure is most likely found in both viruses and cells
    9·2 answers
  • What are the effects of greenhouse gases on Earth?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!