Flashcard: Heart Anatomy and Function — 14 carte

Heart location — mediastinum?

Heart resides in the mediastinum of the thoracic cavity.

Apex beat — position?

Located in the left 5th intercostal space at the midclavicular line.

Base of the Heart — formed by?

Primarily by the left atrium.

Anterior surface — formed by?

Mainly by the right ventricle and atrium.

Diaphragmatic surface — formed by?

Both ventricles resting on the diaphragm.

Right pulmonary surface — mainly?

Formed mainly by the right atrium.

Left pulmonary surface — mainly?

Formed mainly by the left ventricle.

Pericardium layers — two?

Fibrous pericardium and serous pericardium.

Heart wall layers — three?

Epicardium, myocardium, endocardium.

Heart valve types — two?

Atrioventricular and semilunar valves.

AV valves — anchored by?

Chordae tendineae attached to papillary muscles.

Semilunar valves — function?

Prevent backflow into ventricles after systole.

Conduction system — main components?

SA node, AV node, bundle of His, Purkinje fibers.

Blood vessel histology — layers?

Tunica intima, media, externa.