Question

The cells lining the blood vessels belong to the category of :
(A) Smooth muscle tissue
(B) Squamous epithelium
(C) Columnar epithelium
(D) Connective tissue

Answer 1

The arteries and veins are the blood vessels that have a thick, tough wall and several layers of smooth muscle cells. The wall is lined by a passing single cell of the sheet of epithelium cells, the epithelial tissue, separated from the encircling outer layers by a basal plate called as basal lamina.

Complete step by step answer: The smooth muscle cells don't have any striations or any stripes. Hence they're referred to as smooth muscle cells. They are conjointly referred to as involuntary muscles. The cells have one nucleus and therefore the cells are spindle-shaped.
-Simple squamous epithelial tissue is found wherever diffusion and filtration are needed. Cells lining our blood vessels belong to the squamous epithelial tissue. Squamous cells look like skinny, flat plates. They have horizontal planate, elliptical nuclei because they possess a skinny planate kind of cell.
-They form the lining of various cavities like the mouth, blood vessels, heart, and lungs and structure the outer layers of the skin. The inside surface of blood vessels and lymphatic vessels is made up of a skinny layer of squamous epithelium tissue cells referred to as endothelial cells.
-The columnar tissue is mostly composed of one layer of column-like cells. The presence of a conspicuous striated border of microvilli at the free surface end of every cell will increase the area of the cell for absorption and secretion. It's typically found within the inner lining of the alimentary canal.
-The connective tissue may be defined as a cluster of assorted cells that reticulate along and connect the assorted cell and structure of the body.
Hence option B which is squamous epithelium is the correct answer.

Note: The cells of the squamous epithelial are thin and flat in shape. Simple squamous epithelium is a single layer of squamous cells, which form a thin, delicate lining. Such lining is usually seen wherever the transportation of gear takes place through selective porosity.