Heart Anatomy - Right Ventricle Quiz

The area on the chest that covers the heart.

The left ventricle walls are three times thicker than the right ventricle walls, allowing it to generate the force needed to pump blood to the rest of the body.

A rapid pulse or increased heart rate. (Greek rapid heart)

A slow pulse or decreased heart rate. (Greek slow heart.)

An irregular heart rhythm.

The awareness of your own heartbeat.

The valves ensure blood flow in one direction and prevent backflow.

Heart failure can lead to right-sided failure, characterized by increased venous pressure, edema, and breathlessness.

The right ventricle has two surfaces: the anterior (sternocostal) surface and the inferior (diaphragmatic) surface.

The inflowing part of the right ventricle is responsible for receiving blood from the right atrium, while the outflowing part (infundibulum) pumps blood to the pulmonary trunk.

The tricuspid valve is located between the right atrium and the right ventricle, while the pulmonary valve is located between the right ventricle and the pulmonary trunk.

Trabeculae carneae are muscular ridges found in the inflowing part of the right ventricle, providing structural support and increasing surface area for blood flow.

Papillary muscles are specialized trabeculae carneae that anchor the chordae tendineae, which prevent the tricuspid valve from prolapsing into the atrium during ventricular contraction.

The septomarginal trabecula, or moderator band, is a muscular ridge that connects the ventricular septum to the anterior papillary muscle, carrying the right branch of the atrioventricular (AV) bundle.

The interventricular septum separates the right ventricle from the left ventricle and is shaped like a slanted wall.

The right ventricle has a thinner wall compared to the left ventricle because it needs to pump blood only to the lungs, while the left ventricle pumps blood to the entire body.

The left atrium is a chamber in the heart responsible for receiving oxygenated blood from the lungs.

The left atrium is located at the back of the heart, with its 'ear-like' extension (the left auricle) pointing towards the front.

The left atrium receives four pulmonary veins, two on each side, bringing in oxygenated blood from the lungs.

The conducting system of the heart, the moderator band, is a muscular band that separates the ventricles and helps regulate the flow of blood.

The moderator band is located within the ventricles, its position marked by grooves on the heart's surface.

The left ventricle is the powerhouse of the heart, receiving oxygenated blood from the left atrium and pumping it out to the aorta, the body's main artery.

The left ventricle forms the apex, the pointed tip of the heart. It also contributes to different regions of the heart's surface.

The smooth part of the left ventricle's interior connects to the aorta, allowing blood to flow out to the body.

The right atrium receives deoxygenated blood from the body and pumps it to the right ventricle through the tricuspid valve.

The left atrium receives oxygenated blood from the lungs and pumps it to the left ventricle through the bicuspid valve.

If the tricuspid valve is narrowed, the right atrium has to work harder to pump blood into the ventricle, causing it to enlarge.

If the bicuspid valve is narrowed, the left atrium has to work harder to pump blood into the ventricle, causing it to enlarge.

The right atrium forms the right border and a portion of the front and base of the heart.

The SA node, also called the pacemaker, is located at the atriocaval junction, where the superior vena cava and right atrium meet. It initiates the heartbeat by spontaneously generating electrical impulses.

The conducting system is made up of specialized myocardium that initiates and conducts electrical impulses throughout the heart, ensuring coordinated contractions.

Superficial fibres begin at the infundibulum, curve around the heart, and end in a specific papillary muscle.

The impulse generated by the SA node travels through the atrial walls to the AV node, where it is relayed to the ventricles.

The conducting system is made up of specialized myocardial fibres that are finer and completely cross-striated, enabling rapid conduction of impulses.

The fibrous skeleton of the heart is a framework of tough connective tissue that provides support, attachment points for cardiac muscle fibers, and maintains the integrity of the heart valves.

The fibrous skeleton consists of rings surrounding the four heart valves (two atrioventricular and two semilunar valves). It also includes additional fibrous tissue.

The strong rings provide attachment points for the cardiac muscle fibers, allowing them to contract efficiently and pump blood.

The atrioventricular rings are shaped like an 8, and the atria, ventricles, and the membranous part of the interventricular septum are attached to them.

The fibrous skeleton prevents the atria and ventricles from contracting together, ensuring efficient blood flow.

The first heart sound is caused by the closure of the atrioventricular valves (AV valves) as the ventricles contract.

The second heart sound is produced by the closing of the semilunar valves, when the ventricles relax.

If a valve becomes dilated or stiff, it may not close properly, allowing blood to flow backward, known as regurgitation. This can cause various heart problems.

Fibrous ring that attaches the cusps of the atrioventricular valves, providing structural support.

Flat structures that project into the ventricle, preventing backflow of blood by closing during ventricular systole.

Fibrous cords that connect the free margins of the AV valve cusps to the papillary muscles, preventing eversion and ballooning.

Muscular projections inside the ventricle that anchor the chordae tendineae, contracting to control valve closure.

The valve between the right atrium and right ventricle, with three cusps.

The valve between the left atrium and left ventricle, with two cusps.

Valves with semi-lunar shaped cusps, including the aortic and pulmonary valves.

Small pockets formed by the semilunar valve cusps, directing blood away from the ventricle.

The sound produced by the closure of the atrioventricular valves, marking the beginning of ventricular systole.

The sound produced by the closure of the semilunar valves, marking the end of ventricular systole.