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 the functions of nerves?
Your nervous system is composed of a network of nerves and nerve cells that carry messages to and from the brain and spinal cord and the rest of the body. A nerve is a bundle of fibers that receives and sends messages between the body and the brain.
What is the function of nervous tissue for Class 9?
The main function of nervous tissue is to receive stimuli and send signals to the brain and spinal cord. These signals are sent to the muscles via the nerves.
What is the function of nervous tissue quizlet?
The primary function of the nervous system is to collect a multitude of sensory information; process, interpret, and integrate that information; and initiate appropriate responses throughout the body.
What are the four 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.
What are the two main cell types in nervous tissue?
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.
What are the main types of nervous tissue?
Nervous tissue is grouped into two main categories: neurons and neuroglia. Neurons, or nerves, transmit electrical impulses, while neuroglia do not; neuroglia have many other functions including supporting and protecting neurons.
What is nervous tissue with diagram?
Nervous tissue is found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities. The cells in nervous tissue that generate and conduct impulses are called neurons or nerve cells. These cells have three principal parts: the dendrites, the cell body, and one axon.
What is difference between nervous tissue and nervous system?
Nervous tissue refers to one of the four types of tissues in the animal body, making up the brain, spinal cord, and nerves while nervous system refers to the network of nerve cells and nerves which transmits impulses between parts of the body.
How many types of tissue are found in the heart?
The four major types of tissues are epithelial tissue, muscle, nervous tissue and connective tissues.
What are the characteristics of nervous tissue?
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).
How are the nervous tissue protected?
Cranial Meninges. The outer surface of the CNS is covered by a series of membranes composed of connective tissue called the meninges, which protect, stabilize and partition the brain. From superficial to deep, the meningeal layers are the dura mater, arachnoid mater and pia mater.
How does muscle tissue cause action?
1. A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles. Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron.
What are two differences between nervous and muscle tissue?
Muscle and nervous tissues rely on electrical activity to function. Muscle tissue generates force to provide movement, and nervous tissue is responsible for transmitting electrical and chemical signals throughout the body.