What is the primary function of a neuron?
The neuron is the basic working unit of the brain, a specialized cell designed to transmit information to other nerve cells, muscle, or gland cells. Neurons are cells within the nervous system that transmit information to other nerve cells, muscle, or gland cells. Most neurons have a cell body, an axon, and dendrites.
Which is a characteristic of neurons?
Neurons are electrically excitable cells that are the structural unit of the nervous system. A typical neuron consists of a cell body and neuronal processes such as dendrites and axon. Neurons can generally be anatomically characterized as unipolar, bipolar, or multipolar.
What is Neuron write the structure and function of neuron with diagram?
neurons are specialized cells of the nervous system that transmit signals throughout the body. Neurons have long extensions that extend out from the cell bodycalled dendrites and axons. Dendrites are extensions of neurons that receive signals and conduct them toward the cell body.
What is the function of neurons Class 9?
Neurons are the building blocks of the nervous system. They receive and transmit signals to different parts of the body. This is carried out in both physical and electrical forms.
What are the two main functions of nervous tissue?
Integration and communication are the two major functions of nervous tissue. Nervous tissue contains two categories of cells — neurons and neuroglia. Neurons are highly specialized nerve cells that generate and conduct nerve impulses.
What are two characteristics of neurons?
neurons possess numerous___________________—fine, highly branched projections that resemble the branches of a tree. the region of the cell that receives information from the environment or other neurons. __________axons are surrounded by myelin sheaths laid down by glial cells.
What are the importance of neurons?
Neurons are responsible for carrying information throughout the human body. Using electrical and chemical signals, they help coordinate all of the necessary functions of life.
What is the space between two neurons called quizlet?
A narrow space between two neurons is called cynaptic cleft.
What are the two major divisions of the nervous system?
Each subdivision has structural and functional characteristics that distinguish it from the others. The nervous system as a whole is divided into two subdivisions: the central nervous system (CNS) and the peripheral nervous system (PNS).
What are the two main parts of the nervous system?
The nervous system has two main parts:
- The central nervous system is made up of the brain and spinal cord.
- The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
What is the main characteristic of myxedema?
Diagnosis. It is often possible to diagnose myxedema on clinical grounds alone. Characteristic symptoms are weakness, cold intolerance, mental and physical slowness, dry skin, typical facies, and hoarse voice. Results of the total serum thyroxine and free thyroxine index tests usually will confirm the diagnosis.
What are the signs and symptoms of myxedema?
Myxedema Coma Symptoms
- Weakness or lethargy.
- Confusion or non-responsiveness.
- Feeling cold.
- Low body temperature.
- Swelling of the body, especially the face, tongue, and lower legs.
- Difficulty breathing.