SCRIPT 2026 QUESTIONS AND CORRECT
SOLUTIONS GRADED A+
⩥ Atrioventricular node. Answer: divides right atrium/ventricle, carries
signal between
⩥ Bundle of HIS. Answer: Transmission impulses from AV node to
ventricles
⩥ Left bundle branch. Answer: Left division of bundle of HIS
⩥ Right bundle branch. Answer: Left division of bundle of HIS
⩥ Sympathetic nervous system. Answer: fight or flight system, adjusts
body for increased physical activity
⩥ Parasympathetic nervous system. Answer: Opposite of sympathetic,
can slow heart and respiratory rate
⩥ Myocardium. Answer: Heart muscle
,⩥ Stroke volume. Answer: Amount of volume ejected per ventricular
contraction
⩥ perfusion. Answer: constant flow of oxygenated blood to the tissue
⩥ Atherosclerosis. Answer: calcium/cholesterol occlude or cause a
collusion (block) in a coronary artery
⩥ acute myocardial infarction. Answer: Blockage in a coronary artery,
subsequent death of myocardial tissues, like a long term angina
⩥ ischemia. Answer: decreased blood flow to an organ
⩥ infarction. Answer: death of tissue
⩥ cardiac arrest. Answer: complete stopping of heart activity
⩥ components of circulatory system. Answer: heart, blood vessels, blood
⩥ Acute coronary syndrome. Answer: a group of symptoms caused by
myocardial ischemia, can be myocardial infarction or angina
, ⩥ Angina pectoris. Answer: Temporary chest pain from lack of oxygen
to heart
⩥ Ventricular fibrillation. Answer: Disorganized, ineffective twitching of
the ventricles, resulting in no blood flow and cardiac arrest
⩥ asystole. Answer: absence of all heart electrical activity
⩥ ventricular tachycardia. Answer:
⩥ congestive heart failure. Answer: heart failure that results in congested
lungs (with fluid) because left side cannot pump effectively
⩥ dependent edema. Answer: collection of fluid/swelling in part of body
close to ground
⩥ skin conditions of CHF patient. Answer: pale, cyanotic, sweaty
⩥ Automaticity. Answer: Ability of heart to create spontaneous
contraction without stimulus from a nerve
⩥ Stroke volume. Answer: volume of blood ejected per ventricular
contraction