What is control and coordination for class 10th?

Control is defined as the power of restraining and regulating by which a process can be started, regulated in pace to speed up or slow down or stop completely. Coordination can be defined as the working together of the different systems of an organism in order to produce an appropriate reaction to stimuli.

How many types of control and coordination are there?

There are two types of co-ordinations i.e., nervous and hormonal co-ordination. In animals both hormones and neurons (structural and functional unit of nervous system) are involved in regulating and coordinating the various vital activities.

What is the need of control and coordination in an organism Class 10?

An organism needs control and coordination system for the following functions : (i) To save the body of the organisms from the harmful changes in the environment. (ii) To control the speed of voluntary and involuntary actions. (iii) To have the capability to think and learn for responding to any stimuli.

What is a synapse Class 10?

Synapse is the gap between nerve ending of one neuron and dendrites of another. At synapse, the electrical impulse generated at dendrites of a neuron is passed on to dendrite of another neuron in the form of chemicals by on ending of the first neuron.

Why hypothalamus is called master clock?

Hypothalamus acts as a master clock in the human body. The master circadian clock that regulates 24-hour cycles throughout our body. It is a group of about 2000 neurons that form a structure called the suprachiasmatic nucleus, or SCN which is located on the hypothalamus of the brain.

What is called nerve impulse?

Medical Definition of nerve impulse : an electrical signal that travels along a nerve fiber in response to a stimulus and serves to transmit a record of sensation from a receptor or an instruction to act to an effector : the propagation of an action potential along the length of a neuron.

What is receptor and effector?

Receptors are specialized nerve endings that are found in the sensory organs and are responsible for receiving the stimulus to carry information and obtain a response. Effectors are nerve cells that perform the necessary responses to received stimuli.