Exam 32: Circulation and Cardiovascular Systems

The SA node receives the initial electrical impulse that will trigger the atrial fibers to contract.

Major cardiovascular disorders include all of the following EXCEPT

A heart murmur is a distortion of the heartbeat due to blood flowing back through a valve that should be closed.If the heart sound is lub-dub-ssshhh,the most likely cause is a failure of the

Which group of vertebrates will lack a pulmonary circuit?

Platelets will release prothrombin activator at the site of an injury to initiate the clotting sequence.

Veins primarily depend upon which of the following forces to return blood to the heart?

"Artery" and "vein" are defined by whether they leave or enter the heart.If they were defined by whether they carried oxygenated or deoxygenated blood,we would have to change the name(s)of

Which of the following organisms will contain hemolymph as the fluid of their circulatory system?

What is the correct order of blood flow through the cardiovascular system?

Open circulatory systems are characterized by the presence of hemolymph as seen in annelids.

What would you find in the heart of most reptiles?

Which of the following features enable organisms like planarian to respire and exchange nutrients?

A person who is B positive will have

When you step on a cockroach or smash a fly,the blood appears colorless because

What would you find in the heart of an amphibian?

The pacemaker of the cardiac conduction system is the

What is the main difference between blood and hemolymph?

Which valve is responsible for preventing the backflow of blood into the right ventricle?

All capillary beds have blood running to them at all times.

The structure that absorbs nutrients from the small intestines and delivers the nutrients in the blood to the liver is the