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11.1 Notes

Notes about lesson 11.1 in anatomy about the cardiovascular system.

QuestionAnswer
Where is the heart? In the thoracic cavity underneath the sternum, and sits above the diaphragm and between the lungs
What is the apex of the heart? The point of the heart
Why are men safer against heart attacks? Because their hearts have more tissue because they are generally bigger so they can afford to lose a little tissue.
Where does the apex point? Left towards the hip
How much does a man's heart weigh? 10 - 12 ounces
How much does a woman's heart weigh? 8 - 10 ounces
What is higher? Atriums, or ventricles? Atriums
Do arteries take blood away from the heart or to the heart? Are the typically oxygenated or deoxygenated? Away from the heart, and are typically oxygenated
Do vein take blood away from the heart or to the heart? Are the typically oxygenated or deoxygenated? To the heart and are typically deoxygenated
Is the pulmonary artery deoxygenated or oxygenated, and why? Deoxygenated because it's sending blood to the lungs to become oxygenated to then send to the heart for another pump
Is the pulmonary vein deoxygenated or oxygenated, and why? Oxygenated because it's sending oxygenated blood from the lungs to the heart to be pumped back out.
Which side of the heart connects to the pulmonary artery? The right side
Which side of the heart connects to the pulmonary vein? The left side
Where in the heart does deoxygenated blood enter? The right atrium
Where in the heart does oxygenated blood enter? The left atrium
What is the tissue wall that separates the left and right sides of the heart? The septum
Where are atrioventricular or AV valves? Between atria and ventricles
Where are semilunar valve? Between veins and arteries
What is the outermost layer of the heart? Epicardium
What is the middle layer of the heart? Myocardium
What is the inner layer of the heart that is next to the blood? Endocardium
Which side of the body are tricuspid AV valves on? The right side
Which side of the body are bicuspid AV valves on? The left side
What are the 2 types of semilunar valves? Pulmonary and aortic
What is diastole? When ventricles relax and atria contract
What is systole? When the ventricles contract and the atria relax
How is blood pressure red? The first number means the pressure on arterial walls which is the work the heart has. The second number means the pressure on walls when the heart rests.
What is a healthy blood pressure? About a 110/70. Give or take some is ok, but major differences need help.
What number on blood pressure should not change? The second number
What does a low second number on blood pressure mean? Low blood pressure
What does a high first number on blood pressure mean? High blood pressure
Created by: CommsMKSoz
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