GENERAL HISTOLOGY

Detailed explanation-1: -Simple squamous epitheliumare found in alveoli and capillaries of lungs where gas exchange occurs.

Detailed explanation-2: -Squamous, or flattened, epithelial cells, very thin and irregular in outline, occur as the covering epithelium of the alveoli of the lung and of the glomeruli and capsule of the kidney.

Detailed explanation-3: -Simple squamous epithelia are found in alveoli and capillaries of lungs where gas exchange occurs, kidney glomerulus and tubules where filtration and diffusion processes form urine, and capillaries where diffusion and osmosis occur.

Detailed explanation-4: -Simple squamous epithelium lines air sac or alveoli. These squamous epithelial cells are permeable and allow the oxygen from the air to enter the blood in the capillaries of the lung, So, the correct answer is option ‘Squamous epithelium’.

Detailed explanation-5: -Endothelium is a type of epithelium found on the inner surface of lymphatic and blood vessels. The endothelial cells that line the vessel are simple squamous cells.