Question

write the theory of reflex angle in bio class 10 control and coordination
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Answer 1

Answer:

Notes Chapter 7 Control and Coordination

Control and Co-ordination in Animals: Nervous system and endocrine system.

In animals, the nervous system and hormonal system are responsible for control and co¬ordination.

Receptors: Receptors are the specialized tips of the nerve fibres that collect the information to be conducted by the nerves.

Receptors are in the sense organs of the animals.

These are classified as follows :

Phono-receptors: These are present in inner ear.

Functions: The main functions are hearing and balance of the body.

Photo-receptors: These are present in the eye.

Function: These are responsible for visual stimulus.

Thermo-receptors: These are present in skin.

Functions: These receptors are responsible for pain, touch and heat stimuli.

These receptors are also known as thermoreceptors.

Olfactory-receptors: These are present in nose.

Functions: These receptors receive smell.

Gustatory-receptors: These are present in the tongue.

Functions: These helps in taste detection.

Control and Coordination Class 10 Notes Science Chapter 7 1

Answer 2

Explanation:

REFLEX ACTION

Reflex action is the extremely quick, automatic, sudden action in response to something in the environment.

Example- i) Immediately pulling back of fingers after touching a hot plate.

ii) Closing of eyes when flashed with high intensity light.

iii) Salivation when hungry.

Reflex arc is the pathway of nerve involved in reflex action.

Reflex arc involves-

Receptors- receive the message from external environment.

Sensory neuron- carries the message from the receptor to the central nervous system.

hope it's help you.