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Cardiovascular System: Unit Review and
Quiz
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Unit Review
Here is what we have learned from this unit:
- The cardiovascular system consists of the heart, which
is a muscular pumping device, and a closed system of vessels
called arteries, veins, and capillaries.
- The vital role of the cardiovascular system in maintaining
homeostasis depends on the continuous and controlled movement
of blood through the thousands of miles of capillaries that
permeate every tissue and reach every cell in the body.
- The heart is a muscular pump that provides the force necessary
to circulate the blood to all the tissues in the body.
- Three layers of the heart are: the epicardium, the myocardium,
and the endocardium.
- The four chambers of the heart are: the right atrium,
the right ventricle, the left atrium, and the left ventricle.
- Two types of valves of the heart are the atrioventricular
valves and semilunar valves.
- Blood flows from the right atrium to the right ventricle
and then is pumped to the lungs to receive oxygen. From
the lungs, the blood flows to the left atrium, then to the
left ventricle. From there it is pumped to the systemic
circulation.
- Specialized cardiac muscle cells that make up the conduction
system of the heart coordinate contraction of the chambers.
- The pulmonary vessels transport blood from the right ventricle
to the lungs and back to the left atrium.
- The systemic vessels carry blood from the left ventricle
to the tissues in all parts of the body and then returns
the blood to the right atrium.
- Substances pass through the capillary wall by diffusion,
filtration, and osmosis.
Quiz
To test how much you have learned from this unit, two types
of quizzes have been created. The first type is a true-false
quiz. The quiz questions are grouped into several sets of
two questions each to reduce the size of the content on each
page. When you finish the questions in one set, click the
Next button (a right-pointing arrow icon located in the Title
Bar) to proceed to the next page.
The second type is a drag-and-drop quiz, in which, by using
the mouse pointer, you drag a textual or graphic element to
a target area to show your knowledge of the material covered
in the unit. Note that the object you are dragging will snap
back to its original position until it is placed in the correct
target area. Try to drag the object as close to the center
of the target area as possible so that the object will snap
to the target area when you chose a correct answer.
Please click here to
take the true-false quiz.
Please click here to
take the drag-and-drop quiz.
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