A+P Exam 2

14 cards·by mglanville

the heart

pump of the cardiovascular system. cone shaped organ. located in the thoracic cavity in a space called the mediastinum.

pericardium

serous membrane that surrounds and protects the heart

3 layers of the heart wall

epicardium, myocardium, endocardium

epicardium

serous membrane

myocardium

middle layer of the cardiac muscle

endocardium

thin, epithelium layer

the hearts 4 pumping chambers

2 atria, 2 ventricle

the 2 atria

receiving chambers (left and right)

the 2 ventricle

pumping chamber

the hearts 4 sets of valves

prevent back flow of blood in the heart. 2 atrioventricular. 2 semilunar

2 atrioventricular

lie between atrium and its ventricle

2 semilunar

lie between the ventricle and its arteries

pulmonary circuit 24/8

receives deoxygenated blood from the body and pumps it to the lungs for oxygenation. short, low pressure circuit

systemic circuit 120/70

receives oxygenated blood from the lungs and pumps it to the body. long, high pressure circuit