epithilial and nevous tissue at 9th class level
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Epithelial tissue -
It form protective covering over the body nd body organ. In glands it secret different substance. It helps in absorption of food nd excretion. It helps in exchange material. It has the power of regeneration it helps in healing of wounds. Cilated Epithelial tissue help in conducting mucous nd other fluid.
Nervous tissue-
Brain, spinal cord etc are made of nerve tissue. The cell of nerve tissue called neuron. The sense of it help in movement of muscle according to our wish. Neuron get stimulated very fast nd send stimulation from one place to other in body
It form protective covering over the body nd body organ. In glands it secret different substance. It helps in absorption of food nd excretion. It helps in exchange material. It has the power of regeneration it helps in healing of wounds. Cilated Epithelial tissue help in conducting mucous nd other fluid.
Nervous tissue-
Brain, spinal cord etc are made of nerve tissue. The cell of nerve tissue called neuron. The sense of it help in movement of muscle according to our wish. Neuron get stimulated very fast nd send stimulation from one place to other in body
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epithelium forms the outer protective covering all over the body and lines the inside of all cavities such as those of the mouth throat stomach intestine windpipe and lungs.the epithelial cells lie close together with little or no intercellular substance or Matrix between them.there is no blood or lymph supply.nerve supply is present.epithelial cells are attached to the underlying tissues by a basement membrane which is made up of a network of glycoproteins and white non elastic collagen fibres.
FUNCTION:
protection-
1.most epithelial protects the underlying tissues against mechanical injury such as aberration.
2.some epithelial protect against water loss and dehydration and against infection by microorganisms.
Role in physiological processes-
respiratory gas exchange animation of waste product and some cells become granular in nature and perform secretary function
sensory role by sensory epithelium
Transport of materials by ciliated epithelium
NERVE CELL
nervous tissue is a very specialised tissue for receiving stimuli or sensations and transmit messages.it is present in brain spinal cord and nerves. Nerve cells or neurones form the most important elements of the nervous tissue. each neurone consists of three parts they are the main part called the cell body or cyton , the dendrons and the axon.
I HOPE IT WILL HELP YOU OUT. . . .
FUNCTION:
protection-
1.most epithelial protects the underlying tissues against mechanical injury such as aberration.
2.some epithelial protect against water loss and dehydration and against infection by microorganisms.
Role in physiological processes-
respiratory gas exchange animation of waste product and some cells become granular in nature and perform secretary function
sensory role by sensory epithelium
Transport of materials by ciliated epithelium
NERVE CELL
nervous tissue is a very specialised tissue for receiving stimuli or sensations and transmit messages.it is present in brain spinal cord and nerves. Nerve cells or neurones form the most important elements of the nervous tissue. each neurone consists of three parts they are the main part called the cell body or cyton , the dendrons and the axon.
I HOPE IT WILL HELP YOU OUT. . . .
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