Lecture 30: Blood Vessels Flashcards
What is the inner most layer called?
Tunica intima
What is the middle layer called?
Tunica media
What is the outer layer called?
Tunica adventitia
Which barrier leads to atheroma when destroyed?
Tunica intima
What barrier is the source of mechanical strength and contains smooth muscle?
Tunica media
What barrier contains Vaso vasorum?
Tunica adventitia
What are large arteries called?
Elastic
What are small arteries called?
Muscular
Where are elastic arteries present?
Aorta
What elastic arteries contain?
Collagen, elastic tissue, smooth muscle
Which artery has more prevalent smooth muscle?
Small arteries
What is the windkessel effect?
When large arteries inflate when blood enters
An example of a muscular artery?
Coronary arteries
Which artery type regulates blood flow?
Arterioles
Which artery is primarily smooth muscle?
Arterioles
What is the slow RBC’s along along the capillaries called?
Bolus Flow
Where are continuous capillaries present?
Brain, lung, skin
What do pericytes do?
They surround the capillary, provide support
Where are Fenestrated capillaries present?
Intestinal villi
What characterizes fenestrated capillaries?
They are slightly open, have some holes
Where are discontinuous capillaries present?
Bone marrow, liver, spleen
What characterizes discontinuous capillaries?
They have incomplete basement membranes
