Vessel structures Flashcards
Arteries carry blood …………. the heart.
away from
Atherosclerosis (condition of arteries)
The buildup of cholesterol into what are called plaques in the arteries’ walls. Atherosclerosis in the arteries of the heart, brain, or neck can lead to heart attacks and strokes.
The intima
The inner layer lined by a smooth tissue called endothelium.
The media
Aayer of muscle that lets arteries handle the high pressures from the heart.
The adventitia
Connective tissue anchoring arteries to nearby tissues.
Veins carry blood …………. the heart.
towards
Deep vein thrombosis(condition of veins)
Blood clot that develops within a deep vein in the body, usually in the leg. Blood clots that develop in a vein are also known as venous thrombosis. Deep vein thrombosis usually occurs in a larger vein that runs through the muscles.
Tunica intima
This is the outer layer of the vein wall, and it’s also the thickest. It’s mostly made up of connective tissue. The tunica externa also contains tiny blood vessels called the vasa vasorum that supplies blood to the walls of your veins.
Tunica media
The tunica media is the middle layer. It’s thin and contains a large amount of collagen. Collagen is one of the main components of connective tissue.
Tunica externa
This is the innermost layer. It’s a single layer of endothelium cells and some connective tissue. This layer sometimes contains one-way valves, especially in the veins of your arms and legs. These valves prevent blood from flowing backward.
Capillaries are very thin and only have …….. ……… of cells.
two layers
Surrounding the two layers of cells is something called the ……….. …………
basement membrane
The inner layer is made up of ………… ………..
endothelial cells
The outer layer is made up of ………… ………..
epithelial cells
What are the jobs of capillaries?
To transport and exchange gasses, fluids, and nutrients in the body.
