WorksheetsCardiovascular System
Total questions: 10
Worksheet time: 7mins
The aorta is an artery. This means that it carries blood...
to the heart
away from the heart
past the heart
Blood enters the heart through the _________ and leaves through the _________.
atrium, ventricle
ventricle, atrium
ventricle, aorta
atrium, septum
_________ circulation moves blood from the heart to the lungs and back.
Systemic
Pulmonary
Cyclic
Which blood vessels connect the heart and lungs?
Pulmonary Artery
Pulmonary Vein
Aorta
Superior vena cava
Inferior vena cava
The _________ valve connects the right atrium and ventricle.
Tricuspid
Mitral
Pulmonic
Aortic
The (a) empties into the heart from above (arms/head).
Which of these orders the heart's chambers correctly? (hint: which way does blood flow?)
Right atrium > Right ventricle > Left atrium > Left ventricle
Right atrium > Left ventricle > Left atrium > Right ventricle
Right atrium > Left atrium > Right ventricle > Left ventricle
Right ventricle > Left ventricle > Right atrium > Left atrium
No order, blood flows randomly
Why do the pulmonary artery and vein each have two branches?
One carries blood TO the heart, and one carries blood AWAY FROM the heart.
The vessels are too large to curve properly, so they must branch to reach the lungs.
There are two lungs, and each has one pulmonary artery and one vein connected to it.
Redundancy; if one vessel breaks or becomes blocked, the other can do its job.
Why do we need two sets of blood vessels (arteries and veins)?
Blood coming into cells must be oxygenated, and blood leaving cells must not be.
Two-way blood vessels would not have enough capacity.
The heart is complex and requires two sets of blood vessels to function.
We don't.
When blood enters the heart from the pulmonary vein, it is...
Oxygenated
Not oxygenated
