Table of Contents
What is a feature of neurons?
General structural features of neurons are the perikarya, dendrites and axons. The stereotypical image of a neuron is that of a stellate cell body, the perikaryon or soma, with broad dendrites emerging from one pole and a fine axon emerging from the opposite pole.
What is the function of nerve cell neuron?
Neurons (also called neurones or nerve cells) are the fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between.
How does the nerve cell adapted to its function?
Nerve cells are also called neurones. They are adapted to carry electrical impulses from one place to another: they have a long fibre (axon) which is insulated by a fatty sheath. they have tiny branches (dendrons) which branch further as dendrites at each end.
What are the features of the nervous system?
The nervous system consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body. Together, these organs are responsible for the control of the body and communication among its parts.
How does the special structure of a neuron relate to its function?
While neurons have a lot in common with other types of cells, they’re structurally and functionally unique. Specialized projections called axons allow neurons to transmit electrical and chemical signals to other cells. Neurons can also receive these signals via rootlike extensions known as dendrites.
How is a nerve cell adapted?
Nerve cells They are adapted to carry electrical impulses from one place to another: they have a long fibre (axon) which is insulated by a fatty sheath. they have tiny branches (dendrons) which branch further as dendrites at each end.
Which is a feature of a nerve cell?
A particularly salient morphological feature of most nerve cells is the elaborate arborization of the dendrites (also called dendritic branches or dendritic processes) that arise from the neuronal cell body.
Where is the nerve cell located?
Neurons are nerve cells, or cells found in the nervous system. These are specialized cells designed to stimulate other cells in the body in order to communicate. Neurons are excitable, which means they function by using electrical stimulation.
Arising from the cell body are dendrites (branched) while the axon extends from one side of the cell body. Dendrites. Dendrites are the tree-like branched structures that arise from the nerve cell body. Depending on the cell, dendrites may extend significantly resembling a highly branched tree.
How do nerve cells communicate with other cells?
Neurons communicate with each other as well as with other cells through electric signals (nerve impulses), which in turn allows effector organs to respond to the appropriate stimuli. Nerve cells may be described as receivers and transmitters of information that allow an organism to respond appropriately.