What are the branching extensions of nerve cells?

The soma has branching extensions known as dendrites. The neuron is a small information processor, and dendrites serve as input sites where signals are received from other neurons.

What are extensions branching out from the cell body?

Dendrites are specialized extensions of the cell body. They function to obtain information from other cells and carry that information to the cell body. Many neurons also have an axon, which carries information from the soma to other cells, but many small cells do not.

Why do nerve cells have long branching extensions on them?

Particularly in the central nervous system, neurons have extremely long dendrites with complex branches. This allows them to form synapses with and receive signals from a large number of other neurons (1000).

What is an extension of a nerve cell?

An axon is a long, hair-like extension of a nerve cell that carries a message to another nerve cell. Dendrites are thread-like extensions of the cytoplasm of a neuron that receive signals from other neurons.

What are dendrites branching extensions of?

Dendrites (from Greek δένδρον déndron, “tree”), also dendrons, are branched protoplasmic extensions of a nerve cell that propagate the electrochemical stimulation received from other neural cells to the cell body, or soma, of the neuron from which the dendrites project.

Is a junction between the nerve cells?

Synapse, also called neuronal junction, the site of transmission of electric nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector). A synaptic connection between a neuron and a muscle cell is called a neuromuscular junction.

What is the function of a cell with long extensions?

Nerve cells, for example, have long, thin extensions that can reach for meters and serve to transmit signals rapidly. Closely fitting, brick-shaped plant cells have a rigid outer layer that helps provide the structural support that trees and other plants require.

What is the function of nerve cell?

Neurons (also known as neurones, nerve cells and nerve fibers) are electrically excitable cells in the nervous system that function to process and transmit information. In vertebrate animals, neurons are the core components of the brain, spinal cord and peripheral nerves.

Where is nerve tissue found?

Nervous tissue is found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities.

How do nerves transmit messages between the brain and the body?

When neurons communicate, the neurotransmitters from one neuron are released, cross the synapse, and attach themselves to special molecules in the next neuron called receptors. Receptors receive and process the message, then send it on to the next neuron. 4. Eventually, the message reaches the brain.

What function do nerve cells perform?

Cell — Structure and Functions | Exercise The nerve cell(neuron) receives and transfers messages, thereby helping to control and coordinate the working of different parts of the body.

How are dendrites branched extensions of the cell body?

Dendrites are branched structures that extend away from the cell body and carry signals toward the soma. Aside from the nucleus and other organelles, neurons contain unique structures for receiving and sending the electrical signals making neural communication possible.

What are nerve cells and what do they do?

Nerve cell. A neuron is a type of cell that can receive and send signals around the body. Neurons form the body’s living wiring system and make up most of the cells in your brain.

What are the arms of a nerve cell?

Many spiderlike arms branch from the cell body. These are called dendrites, and they carry incoming messages to the cell. An axon is a long, thin fiber that extends from the nerve cell body. This carries outgoing messages to neighboring cells.

Which is part of the nerve cell carries outgoing messages?

An axon is a long, thin fiber that extends from the nerve cell body. This carries outgoing messages to neighboring cells. Nerve signals › Myelin sheath