Alveoli
Endothelial tissue forms the inner lining of blood vessels. This thin layer of cells plays a crucial role in regulating vascular tone, blood flow, and the movement of substances between the bloodstream and surrounding tissues.
It is the thin lining that goes through the outer surface of blood vessels and cavities.
Simple Squamous epithelial cells are found in the lung (alveoli), lining the lumen of blood vessels, and lymphatic vessels, and also in the kidneys.
Epithelial cells are the lining cells. they are not a tissue. this is to be understood first. the outermost lining is known as the epithelial cell lining. it is provided its nutrition through diffusion- indirectly through blood. BUT they DO NOT have a blood vessel supply, since they are not an organ/tissue, just a cell lining.
The tiny blood vessels that surround the alveoli arecalled alveolar capillaries
When you have your period, the lining of your uterus sheds along with blood. This lining is made up of tissue and blood vessels that build up in the uterus each month in preparation for a potential pregnancy. When fertilization does not occur, this lining is shed during menstruation, resulting in a mixture of blood and tissue being released out of the body.
The smallest blood vessels of the body = capillaries
The lining tissue in alveoli is primarily composed of simple squamous epithelium. This thin layer of flat cells facilitates efficient gas exchange between the air in the alveoli and the blood in the surrounding capillaries. Additionally, type II alveolar cells, which are cuboidal in shape, produce surfactant to reduce surface tension and prevent alveolar collapse.
Alveoli
The flow of blood and tissue cells from the uterus is called menstruation. During menstruation, the lining of the uterus sheds and is expelled through the vagina. This process is accompanied by the flow of blood, which is a mix of tissue cells, uterine lining, and blood from the ruptured blood vessels in the uterus.
capillaries