GAB - Cardiovascular System

1

When deoxygenated blood returns from circulation, it passes through the heart chambers and valves in what order?

1

What artery directly provides the blood supply to the heart?

1

What is the correct order of an vein's structure, starting from the layer closest to the lumen?

1

What provides proteins to nourish a capillary's endothelium?

1

Sympathetic vasoconstrictor fibers are located in which arterial layer?

1

What are known as capacitance vessels?

1

Which part of the capillary has the lowest filtration rate?

1

What is considered the pacemaker of the heart?

1

What is the correct order of conduction of the cardiac system?

1

What causes the "funny" current?

1

Once threshold is hit during a pacemaker action potential, which ion channels open?

1

What is the electrochemical link that allows cardiac muscle to act as a functional syncytium?

1

"Fast" type action potentials occur in which cardiac region?

1

Which cardiac tissue has a shorter action potential duration?

1

AV valves are open during which stage(s) of the cardiac cycle?

1

What valves are open during the isovolumetric phase of the cardiac cycle?

1

Overall, diastole makes up approximately what fraction of the cardiac cycle?

1

Aortic pressure is highest during

1

The dicrotic notch is caused by

1

"Lub dub" is often used to describe the heart sounds of the cardiac cycle. What causes the "dub?"

1

The QRS complex of an electrocardiogram refers to

1

Using an ECG, what defines a first degree AV block?

1

What would cause a decrease in heart rate?

1

An abnormally low heart rate is known as

1

What could cause a lowered ventricular ejection fraction?

1

Which would increase cardiac output?

1

Preload is synonymous with

1

The energy of contraction of a cardiac muscle fiber is proportional to the initial fiber length at rest. This is known as

1

Which of the following is a short-term regulator of blood pressure?

1

What type of myocytes directly respond to both sympathetic and parasympathetic stimulation?

1

What type of innervation would result in decreased inotropy?

1

Baroreceptors are located in which layer of the arterial wall?

1

Baroreceptors are located in the

1

How would a decrease in blood pressure affect baroreceptor firing?

1

Changes in blood pressure are sensed by which part of the brain?

1

What would activate the renin-angiontensin-aldosterone system (RAAS)?

1

What regulates vasopressin release?

1

What is NOT caused by natriuretic peptide release?

1

'Internal transfusion' occurs during

1

Which type of thrombosis has a large platelet component?

1

What would inhibit platelet adhesion?

1

What is the enzymatic process in platelet adhesion involving the conversion of proenzymes to active enzymes?

1

Which of the following is an endogenous anticoagulant?

1

Which of the following would inhibit coagulation?

1

Which drug acts independently of ATIII?

1

Which parasite can cause pulmonary thromboembolism in dogs?

1

Which lead is most commonly displayed on an ECG?

1

Which pulse site is more sensitive to lowered blood pressure?

1

While monitoring anesthesia for a patient during an orthopaedic procedure, you noticed the O2 saturation is at 99% while EtCO2 is 80 mmHg as well. Is the patient well ventilated? Which value would determine this?

MCQ covering the 13 CVS lectures taught during GAB year.

GAB - Cardiovascular System

When deoxygenated blood returns from circulation, it passes through the heart chambers and valves in what order?

What artery directly provides the blood supply to the heart?

What is the correct order of an vein's structure, starting from the layer closest to the lumen?

What provides proteins to nourish a capillary's endothelium?

Sympathetic vasoconstrictor fibers are located in which arterial layer?

What are known as capacitance vessels?

Which part of the capillary has the lowest filtration rate?

What is considered the pacemaker of the heart?

What is the correct order of conduction of the cardiac system?

What causes the "funny" current?

Once threshold is hit during a pacemaker action potential, which ion channels open?

What is the electrochemical link that allows cardiac muscle to act as a functional syncytium?

"Fast" type action potentials occur in which cardiac region?

Which cardiac tissue has a shorter action potential duration?

AV valves are open during which stage(s) of the cardiac cycle?

What valves are open during the isovolumetric phase of the cardiac cycle?

Overall, diastole makes up approximately what fraction of the cardiac cycle?

Aortic pressure is highest during

The dicrotic notch is caused by

"Lub dub" is often used to describe the heart sounds of the cardiac cycle. What causes the "dub?"