MMSC 200 EXAM 2 EXAMS SET 2026
PRACTICE QUESTIONS AND ANSWERS
FULL SOLUTION VIEW AHEAD
●● apex of the heart.
Answer: lower left tip of the heart
●● arteriole.
Answer: small artery
●● artery.
Answer: largest type of blood vessel; carries blood away from the heart
to all parts of the body
●● atrioventricular bundle (bundle of His).
Answer: specialized muscle fibers connecting the atria with the
ventricles and transmitting electrical impulses between them
●● atrioventricular node.
Answer: Specialized tissue in the wall between the atria. Electrical
impulses pass from the pacemaker SA node through the AV node and
atrioventricular bundle or (bundle of His) toward the ventricles.
,●● atrium.
Answer: one of two upper chambers of the heart
●● capillary.
Answer: smallest type of blood vessel. materials pass to and from the
blood stream through the thin capillary walls
●● carbon dioxide (CO2).
Answer: gas (waste) released by body cells, transported via veins to the
heart, and then to the lungs for exhalation
●● carotid arteries.
Answer: two common ones located on each side of the neck branch from
the aorta and provide blood to the head, brain, and neck
●● coronary arteries.
Answer: blood vessels that branch from the aorta and carry oxygen-rich
blood to the heart muscle
●● diastole.
Answer: relaxation phase of the heartbeat
●● electrocardiogram.
,Answer: record of the electrical activity of the heart. represented in
waves or deflections called P, QRS, T
●● endocardium.
Answer: inner lining of the heart
●● endothelium.
Answer: innermost lining of blood vessels
●● mitral valve.
Answer: valve between the left atrium and the left ventricle; bicuspid
valve
●● murmur.
Answer: abnormal swishing sound caused by improper closure of the
heart valves
●● myocardium.
Answer: muscular, middle layer of the heart
●● normal sinus rhythm.
Answer: heart rhythm originating in the sinoatrial node with a rate in
patients at rest of 60 to 100 beats per minute
, ●● oxygen.
Answer: gas that enters the blood through the lungs and travels to the
heart to be pumped via arteries to all body cells
●● pacemaker (sinoatrial node).
Answer: specialized nervous tissue in the right atrium that begins the
heartbeat
●● pericardium.
Answer: Double-layered membrane surrounding the heart.
●● pulmonary artery.
Answer: artery carrying oxygen-poor blood from the heart to the lungs
●● pulmonary circulation.
Answer: flow of blood from the heart to the lungs and back to the heart
●● Pulmonary valve.
Answer: valve positioned between the right ventricle and the pulmonary
artery
●● pulmonary vein.
PRACTICE QUESTIONS AND ANSWERS
FULL SOLUTION VIEW AHEAD
●● apex of the heart.
Answer: lower left tip of the heart
●● arteriole.
Answer: small artery
●● artery.
Answer: largest type of blood vessel; carries blood away from the heart
to all parts of the body
●● atrioventricular bundle (bundle of His).
Answer: specialized muscle fibers connecting the atria with the
ventricles and transmitting electrical impulses between them
●● atrioventricular node.
Answer: Specialized tissue in the wall between the atria. Electrical
impulses pass from the pacemaker SA node through the AV node and
atrioventricular bundle or (bundle of His) toward the ventricles.
,●● atrium.
Answer: one of two upper chambers of the heart
●● capillary.
Answer: smallest type of blood vessel. materials pass to and from the
blood stream through the thin capillary walls
●● carbon dioxide (CO2).
Answer: gas (waste) released by body cells, transported via veins to the
heart, and then to the lungs for exhalation
●● carotid arteries.
Answer: two common ones located on each side of the neck branch from
the aorta and provide blood to the head, brain, and neck
●● coronary arteries.
Answer: blood vessels that branch from the aorta and carry oxygen-rich
blood to the heart muscle
●● diastole.
Answer: relaxation phase of the heartbeat
●● electrocardiogram.
,Answer: record of the electrical activity of the heart. represented in
waves or deflections called P, QRS, T
●● endocardium.
Answer: inner lining of the heart
●● endothelium.
Answer: innermost lining of blood vessels
●● mitral valve.
Answer: valve between the left atrium and the left ventricle; bicuspid
valve
●● murmur.
Answer: abnormal swishing sound caused by improper closure of the
heart valves
●● myocardium.
Answer: muscular, middle layer of the heart
●● normal sinus rhythm.
Answer: heart rhythm originating in the sinoatrial node with a rate in
patients at rest of 60 to 100 beats per minute
, ●● oxygen.
Answer: gas that enters the blood through the lungs and travels to the
heart to be pumped via arteries to all body cells
●● pacemaker (sinoatrial node).
Answer: specialized nervous tissue in the right atrium that begins the
heartbeat
●● pericardium.
Answer: Double-layered membrane surrounding the heart.
●● pulmonary artery.
Answer: artery carrying oxygen-poor blood from the heart to the lungs
●● pulmonary circulation.
Answer: flow of blood from the heart to the lungs and back to the heart
●● Pulmonary valve.
Answer: valve positioned between the right ventricle and the pulmonary
artery
●● pulmonary vein.
