A Quick Trip Into the
Human Circulatory System
(also known as the
Cardiovascular System)
Instructions for the quiz: After answering a question either correctly or
incorrectly, right click and choose “last viewed” to go back to the
question. Once you’re done with that question, click any blank spot on
the screen to move on to the next.
Picture from:
http://www.emc.maricopa.edu/faculty/fara
bee/biobk/circsyscomp_2.gif
Click here when you’re done learning terms
Oxygenated blood flows from the lungs to the
pulmonary veins to the left atrium of the
heart, through the left ventricle, and out the
aortic valve to the aorta, an artery which is
also the body’s largest blood vessel.
Back to diagram
• Unoxygenated blood flows from both the
superior vena cava and the inferior vena
cava into the right atrium, through the
atrioventricular valve to the right
ventricle and through the pulmonary
valve to the pulmonary arteries where it
is headed for the lungs to pick up some
oxygen.
Back to diagram
Pulmonary Circulation
• The process of blood going from the
heart to the lungs and back.
Systemic Circulation
• The process of blood going from the heart
to the rest of the body and back.
Back to diagram
Capillaries
• One of the most important parts of the
circulatory system, these tiny blood
vessels deliver nutrients and oxygen
to the cells while getting rid of waste
products such as carbon dioxide.
Alveoli
• These are tiny air sacs in the
lungs where oxygen exchange
takes place.
Things that can go wrong with the
heart:
• Congenital heart defects – defects that are present at
birth which involve abnormal or incomplete development
of the heart
• Arrhythmia – Irregularities in the heart’s rhythm
• Coronary heart disease – caused by atherosclerosis
(fat, calcium, and dead cells are deposited in the walls of
the coronary arteries), this is the most common type of
heart disorder in adults.
• Hypertension – when a person’s blood pressure is
significantly higher than normal…symptoms include
headache, nosebleed, dizziness and lightheadedness
• Stroke – this occurs when the blood supply to the brain
is cut off
Four steps to maintaining a healthy
heart:
•
•
•
•
1. Getting plenty of exercise
2. Eating a nutritious diet
3. Maintaining a healthy weight
4. Getting regular medical checkups
QUIZ TIME!!!!!
I’m not ready yet
Question 1
• What is the structure that blood goes
through before entering the aorta?
• A. Pulmonary Valve
• B. Pulmonary Artery
• C. Aortic Valve
• D. Aortic
AorticArtery
Artery
Question 2
• After leaving the right ventricle,
unoxygenated blood goes through the
_____________ into the _____________
and finally, to the lungs to pick up oxygen.
• A. Right atrium, pulmonary veins
• B. Left atrium, pulmonary artery
• C. Aortic valve, aorta
• D. Pulmonary valve, pulmonary artery
Question 3
• Unoxygenated blood flows through these
two chambers of the heart:
• A. Right atrium, right ventricle
• B. Right ventricle, left ventricle
• C. Right atrium, left atrium
• D. Left atrium, left ventricle
Question 4
• What is the name of the process of
providing oxygen to the rest of the body
(not including the lungs)?
• A. Aerobic respiration
• B. Anaerobic respiration
• C. Systemic circulation
• D. Pulmonary circulation
Question 5
• Tiny blood vessels that deliver nutrients
and oxygen to cells while getting rid of
waste products are called
• A. arterioles
• B. venules
• C. capillaries
• D. alveoli
Question 6
• Tiny air sacs in the lungs where oxygen
exchange takes place are called
• A. Arterioles
• B. Venules
• C. Capillaries
• D. Alveoli
Question 7
• The most common type of heart disorder
in adults caused by atherosclerosis is
called
• A. Arrhythmia
• B. Coronary Hearth Disease
• C. Stroke
• D. Hypertension
Question 8
• A(n) ________ occurs when the blood
supply to the brain is cut off
• A. Arrhythmia
• B. Congenital Heart Defect
• C. Coronary Heart Disease
• D. Stroke
Question 9
• How can you help maintain a healthy
heart?
• A. Getting plenty of exercise
• B. Eating a nutritious diet
• C. Maintaining a healthy weight
• D. Getting regular medical checkups
• E. All of the above
Resources
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•
•
Image of capillaries:
http://images.google.com/imgres?imgurl=http://www.kidsbiology.com/images/cells-ciruclatorysystem.jpg&imgrefurl=http://www.kidsbiology.com/human_biology/circulatorysystem.php&h=200&w=300&sz=22&hl=en&start=64&tbnid=7g33WLF8Z4zMpM:&tbnh=77&tbnw=
116&prev=/images%3Fq%3Dcirculatory%2Bsystem%26start%3D60%26ndsp%3D20%26svnum
%3D10%26hl%3Den%26sa%3DN
Image of alveoli:
http://images.google.com/imgres?imgurl=http://www.greenfacts.org/images/glossary/bronchibronchiolesalveoli.jpg&imgrefurl=http://www.greenfacts.org/glossary/abc/bronchitis.htm&h=290&w=280&sz=1
7&hl=en&start=4&tbnid=NqSye37YpBVdEM:&tbnh=115&tbnw=111&prev=/images%3Fq%3Dalveo
li%26gbv%3D2%26svnum%3D10%26hl%3Den%26sa%3DG
All information about the circulatory system:
http://www.kidshealth.org/parent/general/body_basics/heart.html
The End!
Click button to exit module
Incorrect…
• Hint: It goes through an opening called a
valve…
You are correct!!
Incorrect…
• Hint: It goes through a valve into a blood
vessel that leads away from the heart.
Incorrect…
• Try again.
You are correct!
• But there is a better answer…