cadiovascular- heart

where in the body is the heart located?

the mediastinum

what is the fiberous pericardium

it encloses the heart like a bag

what are the layers of the fiberous pericardium

2 layers, viscreal pericardium ( inner)

partial pericardium ( outter)

what are the layers of the heart?

epicardium, myocardium, endocardium

epicardium

outer layer reduces friction

myocardium

middle later mostly cardiac muscle

endocardium

thin inner lining within chambers the heart

pulmonary circulation

blood travels to lungs then goes back

systematic circulation

blood travels to the body to deliver oxygen to the cells then picks up co2

atria

thin upper chambers that recieve blood through veins

ventricles

thicker, muscular lower chambers

function of valves in the heart

valves allw one way flow of blood

what are the 4 vlaves of the heart

2 antrioventicular, left antrioventicular, right antrioventicular

2 antrioventicular

between atria and valves

left atrioventicular

bicuspis or mitral valve

right antrioventicular

tricuspid valve

what are coronary blood vessels

provide oxygen to the heart

what is the septum

seperates the right and left sides of the heart

what is the apex

tip of the heart

blood vessel ( artery)

carry blood away from the heart thick/ elastic

blood vessels ( arteriostle)

thinner/smaller connect artery to capillaries

blood vessels ( capillaries)

go to everything cause of oxygen ( small thin)

blood vessles ( venule)

thinner/ smaller veins

blood vessels ( vein)

carrry blood back to heart, thinner than arteries

how is blood flow controlle in the body?

not very effecient slow, weak, and blood returing to the heart.