A muscular organ that pumps the blood throughout the circulatory system.

Where exactly is the heart located?

What is the size of a human heart?

What are the upper chambers of the heart?

Contraction of the left ventricle causes the blood to flow to the rest of the body.

The layers of tissue become inflamed and can rub against the heart causing chest pain.

All of the following are causes of myocarditis, EXCEPT:

What are some of the additional protein myofilaments found in an Athlete's Heart?

Also known as the Mitral Valve

Also referred as the greater circulation

On an EKG, the spikes and dips in the line tracings are called waves.

The Apex of the heart is located between the 3rd and 4th intercostal cartilage.

What are the lower chambers of the heart?

All of the following are located on the right side of the heart, EXCEPT:

The right atrium communicates with the right ventricle though this valve.

The function of the valves are to prevent the back flow of blood.

Main Vein

Allows the blood from the left atrium into the left ventricle.

Also referred as the lesser circulation

Inflammation of the heart muscle

Pumps blood more efficiently at a lower weight.

A common cause of sudden cardiac arrest in young people, including young athletes.

Abnormal Heart Rhythm

A condition in which the heart becomes enlarged and cannot pump blood efficiently.

Divides the heart into right and left sides.

The Atrioventricular (AV) valves are:

Found at the intersection of the right ventricle and the base of the pulmonary trunk.

Occurs if the valve does not close tightly; also known as "Backflow".

Chest pain due to lack of oxygenated blood in the heart vessels.

Hole in the Heart

S¹

Occurs if the flaps of a valve thickens, stiffens, or fuses together.

Order of the Conduction System:

Vena Cava → R Atrium → R Ventricle → Pulmonary Vein → Lungs → Pulmonary Artery → L Atrium → L Ventricle → Aorta → Rest of the Body

All of the following are symptoms of Coronary Heart Disease, EXCEPT:

What is the difference between a cardiac arrest and a heart attack?

Hardening and narrowing of the arteries

Dark Band is known as “A” Band.

“The increased volume of blood within the ventricle during the diastole phase of the cardiac cycle will cause an increase in the intensity of the stretches within the ventricular wall of the heart, causing the cardiac muscles of the ventricle to contract more forcefully!”

Vagus nerve carries the impulses to the pacemakers.

Increase or decrease in the excitability of cardiac muscle.

The ability of the cardiac muscle tissue to contract in response to a stimulus received.

Carries the contraction impulse from both the left and right bundle branch to the myocardium of the ventricles.

The Gatekeeper

The amount of blood pumped by each ventricle per minute.

The contractile unit of a muscle cell.

Vena Cava → L Atrium → L Ventricle → Pulmonary Artery → Lungs → Pulmonary Vein → R Atrium → R Ventricle → Aorta → Rest of the Body

Increase in Calcium and release of Norepinephrine are some of the factors that increase the heart rate.

The amount of blood that is pumped or ejected from one ventricle of the heart during each heart beat.

The amount of blood in the ventricles just before systole.

The Cardiac Cycle consists of Systole & Diastole.

Frequency of heart rate (bradycardia or tachycardia)

The ability of the heart to conduct impulses from SA node to AV node, to Bundle of His, and to the Purkinje Fibers.

All of the following are factors at maintaining Cardiac Output, EXCEPT:

Fear & Anger are some of the factors that affect the Stroke Volume.

Heart Muscle Cells

The extent of a sarcomere is from one “Z” line to another “Z” line.

The amount of blood pumped or ejected by the left ventricle to the rest of the body in one minute.

All of the following are contractile proteins of the Sarcomere, EXCEPT:

The Semilunar Valves are:

The lowest volume of blood in the ventricle at any point in the cardiac cycle.

The R Atrium receives blood from the: (2 answers)

What body organ mainly depends on adequate cardiac output?

Using medical abbreviations, what are the most common electrolytes responsible for cardiac conduction? (4 answers)

Speed of conduction (fast or slow).

Light Band is known as "L" Band.

The ability of the cardiac tissues to produce its own impulses.

Deficient supply of blood to a body part that is due to obstruction of the inflow of arterial blood.

If patient Sam Brown has a Stroke Volume of 71 and a Heart Rate of 80, what will be his Cardiac Output?

A brief change in voltage across the cell membrane of heart cells.

What nerve carries the impulses to the pacemakers

When measuring the PR Interval and you count 4 small boxes, what will be your PR?

Cardiac muscle cells are typically branch-like instead of linear.

Dysrhythmia means slow heart rhythm and Arrhythmia means fast heart rhythm.