endocardium
Alveoli
Epithelial tissue (simple squamous epithelium) forms the inner lining of blood vessels
Placenta
The visceral peritoneum covers the abdominal cavity. It essentially forms a serous membrane lining around the abdominal cavity and supports the organs and blood vessels.
your ball sack Um NO! The answer is lymphatic vessels and cardiovascular.
kidney glomeruli, air sacs of the lungs, lining of the heart, blood vessels, and lymphatic vessels, lining of the ventral cavity (serosae).
The endothelium is the medical term meaning lining of the blood vessels, including those of the heart. It is continuous with the endocardium, the inner lining of the heart chambers and heart valves.
blood islands
These are usually simple squamous epithelial cells. The epithelium lining the body cavities is called the mesothelium and is where the cancer mesothelioma arises from. The epithelium lining arteries and veins is called endothelium.
a negative feedback mechanism
It is blood from the very small vessels of the endometrial uterine lining - which is shed monthly, as part of the menstrual cycle.
It is the thin lining that goes through the outer surface of blood vessels and cavities.