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
When obtaining the health history from a client with retinal detachment, a nurse expects the client to report:?
DedPeter [7]
When obtaining the health history from a client with retinal detachment, a nurse expects the client to report FOR SOME ISSUES RELATED TO EYE SUCH AS LIGHT FLASHES AND FLOATERS IN FRONT OF EYES.
Retinal detachment is a medical condition where the retina is pulled away from the blood vessels that supply blood and oxygen. If not treated timely, it can lead to permanent loss of eye sight.
3 0
3 years ago
Which of the following best defines the pharynx? an external opening of the body that takes in air a small bone in the wall of t
natima [27]

Answer:an airway leading from the nose to the treachea.

Explanation:

8 0
2 years ago
what function does the limb serve in each animal? How are the limb bones of the four animals similar? Based on these similaritie
e-lub [12.9K]
The function of the limb is to help them get around and move. They might be similar in the way they’re structured? I don’t have a picture so I can’t tell. And you can assume that at one point these four animals all shared a common ancestor. Hope I helped!
3 0
3 years ago
Consider the mutations to the appendages and digits. Which mutation would MOST LIKELY result in the extinction of that group of
Mekhanik [1.2K]
It’s b because its shown in the question read it again ,and you’ll see
6 0
3 years ago
Read 2 more answers
PLEASEEEE HELP :((((
krok68 [10]

Answer:

D

Explanation:

7 0
3 years ago
Other questions:
  • Need help with this asap please. will give brainliest!
    6·1 answer
  • When you are exposed to sun light for a long time your skin which otherwise appears normal gets heavily tanned what could be the
    12·1 answer
  • If the midwest experiences a severe drought that damages the corn crops, we should expect the
    5·1 answer
  • In the initial period of learning, ________ describes when an organism learns to connect a neutral stimulus and an unconditioned
    11·2 answers
  • A recessive trait is expressed only in an individual who is
    11·1 answer
  • This is the number of organisms of the same species that live in the same area.
    8·1 answer
  • What is the role of MRNA in the process?
    6·1 answer
  • 1. Blood in the gills runs in the opposite direction as the water outside the gill filaments. By running in the direction opposi
    5·1 answer
  • All living things that lack a nucleus are called prokaryotes<br>True or false
    9·2 answers
  • From a trough to a peak, the economy goes through
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!