Human Heart - Structures and Functions

pulmonary artery

Carries deoxygentated blood from the heart to the lungs for oxygenated-deoxygenated

septum

Divides the right and left chambers of the heart

Myocardium

Muscle of the heart

Aorta

Opens to allow blood to leave the left ventricle-oxygenated

mitral valve

a valve in the heart that guards the opening between the left atrium and the left ventricle-oxygenated

coronary arteries

blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle-oxygenated

inferior vena cava

carries blood from lower regions of the body to right atrium-deoxygenated

pulmonary veins

carry the oxygenated blood from the lungs into the left atrium of the heart-oxygenated

pulmonary semilunar valve

controls flow of blood from the right ventricle to the pulmonary artery-deoxygenated

right atrium

deoxygenated blood enters the heart through veins from the tissues-deoxygenated

aortic semilunar valve

opens the way for blood from your lungs to pass from left ventricle into the aorta-oxygenated

right ventricle

pumps blood to the lungs-deoxygenated

left ventricle

pumps oxygenated blood to the body-oxygenated

superior vena cava

receives blood from the head and arms and chest and empties into the right atrium of the heart-deoxygenated

left atrium

receives oxygenated blood from the lungs-oxygenated

tricuspid valve

regulates blood flow between the right atrium and right ventricle-deoxygenated

brachiocephalic artery

supplies head, neck, and right upper limb-oxygenated

ascending aorta

the ascending part of the aorta as it emerges from the left ventricle-oxygenated

descending aorta

the descending part of the aorta that branches into the thoracic and abdominal aorta-oxygenated

papillary muscle

they attach cusps of the atrioventricular valves contract to prevent inversion

chordae tendineae

thin bands of fibrous tissue that attach to the valves in the heart and prevent them from inverting