The Cardiovascular System Flashcards
Parietal Pericardium
Forms a sac of strong fibrous tissue around the heart
Visceral Pericardium
Simple squamous epithelium on the outer surface of the heart (epicardium)
Apex
Inferior, pointed end
Base
Broad, superior portion of the heart:location of the great vessels
Right Auricle
Flap-like structure on top of the right atrium; allows for expansion of the right atrium when it fills with blood
Left Auricle
Flap-like structure on top of the Left atrium; allows for expansion of the Left atrium when it fills with blood
Coronary (Atrioventricular) Sulcus
Groove on the surface between the atria and ventricles; location of the coronary arteries
Anterior Interventricular sulcus
Groove on the anterior surface between the ventricles; location of the anterior interventricular artery and the great cardiac vein
Posterior Interventricular sulcus
Groove on the posterior surface between the ventricles; location of the posterior interventricular artery and he middle cardiac vein
Ligamentum Arteriosum
Small fibrous cord connecting the pulmonary trunk to the aorta; remnant of the fetal ductus arteriosus
Superior vena cava
delivers systemic blood from structures superior to the heart to the right atrium
Inferior vena cava
Delivers systemic blood from structures inferior to the hear to the right atrium
Pulmonary Trunk
Carries Blood from the right ventricle to the Pulmonary arteries
Pulmonary Arteries
Carries blood from the Pulmonary trunk to the pulmonary capillaries
Pulmonary Vein
Delivers oxygenated blood from the lungs to the left atrium
Aorta
Carries blood from left ventricle to the systemic capillaries in the body
Right Atrium
Heart chamber that receives deoxygenated blood from the systemic circuit
Left Atrium
Heart chamber that receives oxygenated blood from the pulmonary circuit
Interatrial septum
Dividing wall between the two atria
Fossa ovalis
Remnant of the foramen ovale, a fetal structure that allows blood to bypass the pulmonary circuit
Pectinate muscle
Prominent ridges lining the surface of the atria
RIght Ventricle
Heart chamber that receives deoxygenated blood from the right atrium
Left Ventricle
Heart chamber that receives oxygenated blood from the left atrium
Interventricular septum
Dividing wall between the two ventricles
Trabeculae carneae
Prominent ridges lining the surface of the ventricles
Moderator Band
Muscular band of heart tissues that carries a portion of the right bundle branch
Tricuspid Valve
Three-cusp valve between the right atrium and right ventricle (right AV valve)
Bicuspid Valve
Two-Cusp valve between the left atrium and left ventricle (left AV valve, Mitral Valve)
Chordae Tendineae
Long Fibrous cords of connective tissue that connect the papillary muscle t the AV Valves; Prevent AV valve prolapse during ventricular systole
Papillary Muscles
Projections of cardiac muscle within the ventricles; attached to the chordae Tendineae, which contract to prevent AV valve Prolapse
Pulmonary Valve
Three-Cusp valve between the right ventricle and pulmonary trunk
Aortic Valve
Three-cusp valve between the left ventricle and aorta
What are the layers of the heart from deep to superficial
Endocardium
Myocardium
Epicardium
What cavity is the heart located
Thoracic cavity
The right side of the heart pushes blood to and from the?
Lungs (pulmonary circuit)
the left side of the heart pushes blood to and from the?
Tissues (systemic circuit)
What type of tissue makes up the Endocardium
Connective tissue
What type of tissue makes up the Myocardium
cardiac muscle
What type of tissue makes up the Epicardium
Connective and simple squamous epithelium
Where in the Thoracic cavity is the heart located
the Mediastinum
