NEET PG DENTAL EXAM

HISTOLOGY

EPITHELIAL TISSUE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Flat cells
A
squamous
B
cuboidal
C
columnar
D
pseudocolumnar
Explanation: 

Detailed explanation-1: -Squamous cells are thin, flat cells that look like fish scales, and are found in the tissue that forms the surface of the skin, the lining of the hollow organs of the body, and the lining of the respiratory and digestive tracts. Most cancers of the anus, cervix, head and neck, and vagina are squamous cell carcinomas.

Detailed explanation-2: -If left untreated, squamous cell carcinoma can spread to nearby lymph nodes, bones or distant organs (such as the lungs or liver). Normal squamous tissue usually appears flat. When this tissue develops cancer it can appear as round masses that are can be flat, raised, or ulcerated.

Detailed explanation-3: -Simple squamous epithelial cells are flat and thin enough to allow molecules to pass via diffusion. This cell type is found in the walls of capillaries, linings of the pericardium, and alveoli.

Detailed explanation-4: -About 2 out of 10 skin cancers are squamous cell carcinomas (also called squamous cell cancers). These cancers start in the flat cells in the upper (outer) part of the epidermis. These cancers commonly appear on sun-exposed areas of the body such as the face, ears, neck, lips, and backs of the hands.

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