Kindly tell me meanings of underline words in a sheet of paper only meritnation experts i have my exam plz understand ?????i need handwritten ans help me

Fracture is a partial or complete break in the bone.

Pathogen is microorganism that causes disease or illness.

A chemical agent is a chemical compound that has toxic effects on human health.

Nutritive agents are nutrients like minerals, carbohydrates, proteins etc.

Mechanical agents include injuries, fractures, sprains, dislocations,etc.

Extrinsic or external factor means the cause of the disease, or pathological change, came from outside of the body.

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