Which one of following statements is correct?

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7.Human Health and Disease

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Which one of the following statements is correct?

Patients, who had undergone surgery are given cannabinoids to relieve pain

Benign tumors show the property of metastasis

Heroin accelerates body functions

Malignant tumors may exhibit metastasis

Solution

Malignant tumor first grows slowly. No symptoms are noticed. This stage is called the latent stage. The tumour later grows quickly.The cancer cells go beyond adjacent tissue and enter the blood and lymph. Once this happens, they migrate to many other sites in the body, where the cancer cells continue to divide. It is metastasis. Only malignant tumors are properly designated as cancer.

Standard 12

Biology