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Medical Terms List - N

1. Naevus/mole - Pigmented lesion on the skin, often congenital, formed of melanin pigment cells especially in the form of a raised colored patch or developing during adulthood.

 

2. Necrosis - Death of cells or tissue through disease or infection or injury or trauma.  It is morphological (size, shape, and structure) changed in dead cells within living tissues.

 

3. Nematode -  Roundworm parasite


4. Neoplasm - Neoplasm is a new abnormal growth of cells or progressive and uncontrolled cell division (due to RNA alteration), also known as a tumor.

Both tumor and neoplasms can be benign (non-cancerous) or malignant (cancerous) which means benign tumours and neoplasms are not cancer and malignant tumours and neoplasms are cancer.

 

5. Neurogenic - Arising from the nerves or the nervous system or caused to interruption of nerve supply.  

For example, neurogenic pain; pain that originates in the nerves associated with abnormal sensations called dysesthesia.

Neurogenic atrophy of muscle; It can be from an injury to, or disease of a nerve that connects to the muscle and muscles begin to break down from disuse.

 

6. Normal - A state of physical, mental and social well-being and free from disease or infirmity (weakness).


7. Nosocomial - Also called health-care-associated infections (HAIs)  or hospital-acquired infection.

Infection acquired in hospital or in a health-care facility or some other medical environment.


medical terms list - N

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