The epithelium and blood vessels in the nasal cavity serve to warm and moisturize the air as a person breathes it in. This is to prevent the delicate membranes of the alveoli from being damaged by cold dry air.
Membranous epithelium is a type of tissue that consists of a single layer of epithelial cells resting on a basement membrane. It is mainly found lining body cavities and organs, where it serves a protective and absorptive function. Examples of membranous epithelium include the lining of the respiratory tract and the lining of blood vessels.
Blood capillaries
The epithelium of the respiratory tract contains mucous cells which adds moisture and there are blood vessels close to its' surface that add warmth to the air.
Simple squamous epithelium is also known as pavement epithelium due to its thin, flattened shape resembling a pavement. It is found in areas where filtration or diffusion is the primary function, such as in the alveoli of the lungs and the lining of blood vessels.
No epithelium is a cell mainly present in blood vessels wall.which liberate nitric oxide to dilate the blood vessels .
Superficial Broken blood vessels
Simple squamous epithelium
Superficial.
Blood vessels are lined with simple squamous epithelium--in fact, the entire cardiovascular system is.
Bronchioles
Hepatocytes and endothelia (eptihelium lining vessels)
If stratified squamous epithelium lined the blood vessels, gas and nutrient exchange across the vessel walls would become much more complex, requiring multiple transports and making the process much more energy intensive.