cardiovascular anatomy Flashcards
which side of the heart carries oxygenated blood
left
pulmonary arteries carry blood out of which side of the heart
right
the aorta carries blood out of which side of the heart and is it oxygenated or deoxygenated
left
oxygenated
pulmonary circulation is on which side of the heart
right side
systemic circulation is on which side of the heart
left side
what is the structure of a typical artery (from inner to outer layer)
- Lumen – hollow passageway (blood)
- Tunica intima
- Elastic lamina – layer of elastic tissue
- Tunica media
- Tunica adventitia
structure or artery inner layer
- tunica intima
- inner lining
- single endothelial layer supported by connective tissue
- Endothelium
- Subendothelium
- Basement membrane
structure of artery middle layer
tunica media
* middle layer
* largely smooth muscle
* helps vessels to contract and expand
* contains elastic fibers that keep the blood flowing in one direction
* some arteries have high levels of elastin
structure of artery outer layer
tunica adventitia
* supporting connective tissue
* delivers oxygen and nutrient to the cells / helps remove waste
* gives structure and support to blood vessels
* larger arteries have their own blood vessels in this layer
what is the mediastinum
a space in your chest that holds your heart and other important structures
aorta
the main and largest artery in the body
vena cava
a vein that carries blood to the heart from all around the body
what are the three layers of the pericardium and describe them
fibrous
-outer layer
-tough, fibrous, thick
serous parietal
serous visceral
-thin
-space between contains a thin layer of pericardial fluid
what are the 4 valves of the heart
pulmonary (at the top)
aortic (in the middle)
tricuspid (bottom left)
mitral (bottom right)
for the mitral and tricuspid (looking from pov of doctor so switch round)
semilunar valves
blood leaving the left ventricle =aortic
blood leaving the right ventricle = pulmonary
