Anatomy chapter 20 vocab 1

Pulmonary circuit

From the gas exchange surfaces of the lung

Endocardium

Cover the inner surface of the heart included that of the heart value

Systemic circuit

Transports blood to and from the rest of the body

Myocardium

The muscular wall of the hearts for both atrial and ventricles

Arteries

carries blood away from the heart

Epicardium

The visceral pericardium covers the outer surface of the heart

Veins

returns blood to heart

Anterior Inter ventricular sulcus

Depression and it marks the boundary between the left and the right ventricle

Posterior Inter ventricular sulcus

Depression and it marks the boundary between the left and the right ventricle

Coronary sulcus

A deep grove that marks the border between the atria and the ventricles

Capillaries

Small thin-walled vessels that interconnect the smallest arteries and the smallest veins

Exchange vessels

Permits the exchange of nutrients dissolved gases and waste products between blood and surrounding tissues

Right atrium

Receives blood from the systemic circuit

Right ventricle

Pumps blood into the pulmonary circuit

Left atrium

Collects blood from the pulmonary circuit

Left ventricle

Pumps blood into the systemic circuit

Auricle

Expandable extension of an atrium

Pericarditis

An infection of the pericardium

Pericardial sac

Surrounds the heart; is a dense network of collagen fibers

Parietal pericardium

lines the inner surface of the pericardial sac

Pericardium

lining of pericardial cavity

Mediastinum

The region between two plural cavities

Visceral pericardium

covers and adheres closely to the outer surface of heart

Pericardial fluid

Secreted by the pericardial membranes

Apex

The inferior pointing tips of the heart