Heart Anatomy Flashcards

Left atrium (location)

Right atrium (location)

Left ventricle (location)

Right ventricle (location)

Chordae tendinae (function)

hold valves in place; "heart strings"

Left atrium (function)

receives oxygenated blood from lungs

Right atrium (function)

receives deoxygenated blood from body

Left ventricle (function)

pumps oxygenated blood to body

Right ventricle (function)

pumps deoxygenated blood to lungs

Septum (function)

separates left and right sides of heart

Pericardium

double serous membrane; encloses the heart

Visceral pericardium

pericardial layer closest to the heart; aka epicardium

Parietal pericardium

outer pericardial layer

Epicardium (heart wall)

aka visceral pericardium; outer layer of heart wall

Myocardium

middle layer of heart wall; thickest layer; mostly cardiac muscle

Endocardium

inner layer of heart wall; made up of simple squamous epithelium

Valves (function)

flaps of connective tissue that prevent backflow of blood; keep blood flowing in one direction

Bicuspid (mitral) valve (description)

between left atrium and left ventricle

Tricuspid valve (description)

between right atrium and right ventricle

Bicuspid valve (picture)

Tricuspid valve (picture)

Pulmonary semilunar valve (description)

between right ventricle and pulmonary artery

Aortic semilunar valve (description)

between left ventricle and aorta

Pulmonary semilunar valve (picture)

Aortic semilunar valve (picture)

Aorta (function)

oxygenated blood leaves left ventricle toward body

Pulmonary arteries (function)

oxygen-poor blood leaves right ventricle towards lungs

Vena cava (function)

superior and inferior; deoxygenated blood from body enters right atrium

Pulmonary veins (function)

oxygen-rich blood from lungs enters left atrium

Aorta (picture)

Pulmonary arteries (picture)

Vena cava (picture)

Pulmonary veins (picture)