Chapter 1 Lab: Heart Anatomy

Vocabulary flashcards covering the anatomical structures, vessels, and valves of the heart as recorded in the Chapter 1 Lab notes.

Superior Vena Cava

A large vein identified on page 4 of the lab notes.

Inferior Vena Cava

A large vein identified on page 7 of the lab notes.

Right Atrium

The upper right chamber of the heart.

Right Auricle

An ear-like flap protruding from the right atrium.

Tricuspid Valve

The valve located between the right atrium and right ventricle.

Right Ventricle

The lower right chamber of the heart.

Pulmonary Valve

The valve located at the base of the pulmonary trunk.

Pulmonary Trunk

The major vessel that carries blood from the right ventricle towards the lungs.

Right and Left Pulmonary Arteries

Arteries that branch from the pulmonary trunk to carry blood to the lungs.

Right and Left Pulmonary Veins

Veins that return oxygenated blood to the left side of the heart.

Left Atrium

The upper left chamber of the heart.

Left Auricle

An ear-like flap protruding from the left atrium.

Mitral Valve

Also called the bicuspid valve.

Left Ventricle

The lower left chamber of the heart.

Aortic Valve

The valve located between the left ventricle and the aorta.

Aorta

The main artery of the body, supplying oxygenated blood to the circulatory system.

Ascending Aorta

The first section of the aorta, which starts from the left ventricle.

Aortic Arch

The curved portion of the aorta between the ascending and descending parts.

Descending Aorta

The part of the aorta that continues down after the aortic arch.

Brachiocephalic Trunk

The first branch of the aortic arch.

Left Common Carotid Artery

The second branch of the aortic arch.

Left Subclavian Artery

The third branch of the aortic arch.

Interatrial Septum

The wall between the right and left atria.

Fossa Ovalis

An oval depression located in the interatrial septum.

Pectinate Muscles

Muscles found in the walls of the atria.

Chordae Tendineae

Structures only present with AV valves (tricuspid and mitral valves) that connect papillary muscles to AV valves.

Papillary Muscles

Muscles in the ventricles that are always connected to chordae tendineae.

Trabeculae Carneae

Ridges in the walls of the ventricles.

Interventricular Septum

The wall between the right and left ventricles.

Apex

The bottom, pointed part of the heart.

Endocardium

The shiny, lighter pink inner layer of the heart.

Myocardium

The muscle layer of the heart.

Right Coronary Artery

An artery supplying the right side of the heart muscle.

Right Marginal Branch

A branch of the right coronary artery.

Posterior Interventricular Branch

Same thing as the posterior descending branch; located on the back of the heart.

Left Coronary Artery

A coronary artery that is not able to be seen clearly on any model.

Circumflex Branch

A branch of the left coronary artery.

Anterior Interventricular Branch

Same thing as the left anterior descending branch.

Coronary Sinus

A vessel located on the back of the heart that collects blood from the heart muscle.

Hole Through Which Coronary Sinus Empties Blood into Right Atrium

The opening that allows blood from the coronary sinus to enter the right atrium.