#1
Which term refers to the inflammation of the heart muscle?
Myocarditis
ExplanationInflammation of heart muscle causing chest pain & heart failure.
#2
What is the medical term for a rapid and irregular heart rate?
Tachycardia
ExplanationFast, irregular heart rate potentially causing palpitations or fainting.
#3
What is the common abbreviation for a heart attack in medical terminology?
MI
ExplanationMyocardial Infarction: blockage of blood flow to part of the heart.
#4
What is the medical term for a blocked blood vessel?
Stenosis
ExplanationNarrowing or blockage of a blood vessel, impeding blood flow.
#5
What is the medical term for an abnormally slow heart rate?
Bradycardia
ExplanationHeart rate slower than normal, potentially causing dizziness or fainting.
#6
What does the medical term 'ECG' stand for?
Electrocardiogram
ExplanationGraphical representation of heart's electrical activity.
#7
Which chamber of the heart pumps oxygenated blood to the rest of the body?
Left ventricle
ExplanationPumps oxygen-rich blood to body through systemic circulation.
#8
Which blood vessels carry deoxygenated blood from the body back to the heart?
Veins
ExplanationTransport deoxygenated blood from body tissues back to heart.
#9
What is the primary function of the sinoatrial (SA) node in the heart?
Initiate the heartbeat
ExplanationInitiates electrical impulses, setting heart rhythm.
#10
Which valve prevents the backward flow of blood from the left ventricle into the left atrium?
Mitral valve
ExplanationValve between left atrium & ventricle, preventing backflow.
#11
What is the primary function of the coronary arteries in the heart?
Supply oxygen and nutrients to the heart muscle
ExplanationProvide blood to heart muscle, ensuring its oxygenation.
#12
Which component of blood is responsible for carrying oxygen to the body's tissues?
Red blood cells
ExplanationContain hemoglobin, transporting oxygen from lungs to tissues.
#13
What is the medical term for high blood pressure?
Hypertension
ExplanationCondition of elevated blood pressure, potentially damaging arteries.
#14
In the context of cardiac physiology, what is the 'Frank-Starling mechanism'?
Adjustment of stroke volume based on venous return
ExplanationRegulation of heart's pumping strength according to blood volume.
#15
In cardiac terms, what does the acronym 'CABG' stand for?
Coronary Artery Bypass Graft
ExplanationSurgical procedure to improve blood flow to heart muscles.
#16
What is the medical term for the thin sac that surrounds the heart?
Pericardium
ExplanationProtective sac surrounding the heart, containing lubricating fluid.
#17
In cardiac physiology, what is the 'P-wave' on an ECG tracing associated with?
Atrial depolarization
ExplanationInitiates contraction of atria, shown as first wave on ECG.
#18
Which condition is characterized by a rapid and chaotic heartbeat, often leading to fainting or sudden cardiac arrest?
Ventricular tachycardia
ExplanationFast, irregular heartbeat starting in the ventricles.
#19
In electrocardiography (ECG), what does the 'QRS complex' represent?
Ventricular depolarization
ExplanationElectrical activation of ventricles, leading to contraction.