Nervous tissue is characterized as being excitable and capable of sending and receiving electrochemical signals that provide the body with information. Two main classes of cells make up nervous tissue: the neuron and neuroglia (Figure 4.5. 1 The Neuron).
Which of the following are characteristics of nervous tissue?
Characteristics Of Nervous Tissue
- Nervous tissue makes up for the CNS and PNS of the nervous system.
- Contains two distinct cells – neurons and glial cells.
- It consists of the dendrites, cell body, axon and nerve endings.
What are the main 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.
What is unique about the nervous tissue?
Nervous tissue is made up of cells called neurons and neuroglia. Each cell type has unique characteristics. Neurons are specialized to generate and conduct electrical activity, and neuroglia provide structural support to the neurons. … The cell body contains the nucleus, which serves as the metabolic center for the cell.
What are the characteristics of nerve cell?
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.
What are the two main types 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 the 3 types of nervous tissue?
Your nervous system is involved in everything your body does, from regulating your breathing to controlling your muscles to sensing heat and cold. There are three types of nerves in your body: autonomic nerves, motor nerves, and sensory nerves.
What are the 3 functions of the central nervous system?
The nervous system has three broad functions: sensory input, information processing, and motor output. In the PNS, sensory receptor neurons respond to physical stimuli in our environment, like touch or temperature, and send signals that inform the CNS of the state of the body and the external environment.
What is nervous system and its function?
The nervous system is involved in receiving information about the environment around us (sensation) and generating responses to that information (motor responses). The nervous system can be divided into regions that are responsible for sensation (sensory functions) and for the response (motor functions).
What are the 4 functions of the nervous system?
The four main functions of the nervous system are:
- Control of body’s internal environment to maintain ‘homeostasis’ An example of this is the regulation of body temperature. …
- Programming of spinal cord reflexes. An example of this is the stretch reflex. …
- Memory and learning. …
- Voluntary control of movement.
Where is nervous tissue found?
Nervous tissue is found in the brain, spinal cord, and nerves.
What are 5 interesting facts about the nervous system?
11 Fun Facts About the Nervous System
- The body has billions of nerve cells. …
- Neurons are made of three parts. …
- Neurons may look different from one another. …
- Neurons are programmed to do different things. …
- There are two parts of the nervous system. …
- There are two types of nervous systems. …
- The involuntary system is broken down into three parts.
5 авг. 2019 г.
Where is nervous tissue not found?
Tendon is a fibrous connective tissue connecting bones to muscles. Nervous tissue is absent in tendon. These are made up of collagen. Tendons and muscles work together to move bones.
What is the main function of 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.
How many types of nervous tissue are there?
Although the nervous system is very complex, there are only two main types of cells in nerve tissue. The actual nerve cell is the neuron. It is the “conducting” cell that transmits impulses and the structural unit of the nervous system. The other type of cell is neuroglia, or glial, cell.
How do you identify nervous tissue?
Many have dendrites and axon terminals that are too thin and small too see clearly. Cell bodies tend to come in all sorts of sizes and shapes, and are not always bulbous lumps readily distinguished from the rest of the cell. What’s more, nervous tissue is delicate and fragile.