Bio 200 Lymphatic

Cardiovascular System Webquest

Graded using the Webquest Rubric. Submitted to Blackboard.

Go to:  

http://www.cengage.com/biology/discipline_content/animations/blood_circulation.swf 

http://www.sumanasinc.com/webcontent/animations/content/human_heart.html

http://www.blaufuss.org/tutorial/index1.html 

http://science.nationalgeographic.com/science/health-and-human-body/human-body/heart-article/

http://www.mayoclinic.org/diseases-conditions/heart-disease/multimedia/circulatory-system/vid-20084745 

1. Label the parts of the diagram.[pic 1]

[pic 2]

[pic 3][pic 4][pic 5][pic 6][pic 7][pic 8][pic 9][pic 10][pic 11][pic 12][pic 13]

[pic 14][pic 15][pic 16]

Go to: http://www.nhlbi.nih.gov/health/health-topics/topics/chd/heartworks 

1. What are the differences between arteries and veins?

Veins carry deoxygenated blood away from the heart and arteries carry oxygenated blood into the heart.

1. What causes the lub-dub sound of a beating heart?

It is the sound of blood hitting closed valves in the heart.

1. Describe the path that blood takes as it flows through the heart. Include the path through the valves and indicate if the blood is deoxygenated or deoxygenated as it flows through each part of the heart.

Blood enters the heart through the superior and inferior vena cava. These two paths dump deoxygenated blood into the right atrium. Blood passes from the right atrium through the tricuspid valve into the right ventricle. The right ventricle contracts and forces the blood through the pulmonary semilunar valve into the pulmonary arteries. The blood moves into the lungs and gas exchange occurs, oxygenating the blood. The blood then moves through the pulmonary vein, emptying into the left atrium. The oxygenated blood then passes through the bicuspid valve into the left ventricle. The left ventricle contracts and forces the blood out through the aortic semilunar valve and into the aorta. The aorta is the bodies largest artery and blood is distributed to smaller arteries and out to the entire body (except the lungs).

Go to: http://learn.visiblebody.com/circulatory/circulatory-pulmonary-systemic-circulation 

1. What is the difference between pulmonary circulation and systemic circulation?

Systemic circulation carries oxygenated blood away from the heart to the rest of the body, where as pulmonary is solely responsible for carrying the blood to the lungs to become oxygenated and back to the heart.

1. Go to http://science.nationalgeographic.com/science/health-and-human-body/human-body/heart-article/ 

Click on “heart attack”. Describe what happens during a heart attack and what some treatment options are.

A heart attack is when a section of the heart becomes blocked off from oxygenated blood. There are many ways that could be used to treat a heart attack such as, surgical bypasses. Stints, heart cath, blood thinners, angioplasty, or Thrombolytic therapy just to name a few.

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