GENERAL HISTOLOGY

EPITHELIUM

EPITHELIAL TISSUES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Flattened cells
A
Squamous
B
Cuboidal
C
Columnar
D
None of the above
Explanation: 

Detailed explanation-1: -The squamous epithelium is made of a single thin layer of flattened cells with irregular boundaries. They are found in the walls of blood vessels and air sacs of lungs. Due to their single thin layer, they are involved in a functions like forming a diffusion boundary.

Detailed explanation-2: -Squamous cells are thin and flat, just like the scales after which they are named. They provide a smooth surface that avoids blood turbulence in the blood vessels and also allows fluids to easily flow over them.

Detailed explanation-3: -Squamous epithelial cells are flat and allow substances to freely move across their surface. These cells are located in the lungs and the kidneys. Stratified epithelial cells form layers, with mitosis taking place in the lowest layer. Skin is formed from stratified epithelial cells.

Detailed explanation-4: -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.

Detailed explanation-5: -These flattened cells are called endothelial cells . The nuclei are frequently found protruding into the lumen of the vessel. Observe the numerous large blood vessels present in the periphery of this section. Simple squamous epithelium is also the outer covering of the uterine tube which is termed the mesothelium .

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