DHO 78 pg HS120162017 Todays Lesson Overview https youtubewhtNDBIhczQlistPLr3ppdrDHkLqr5iUjCutB9ZPPnqWY1TS 316 When blood leaves the heart it is carried throughout the body in blood vessels ID: 1043611
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1. Circulatory SystemBlood VesselsDHO 7.8, pg. HS1/2016-2017
2. Today’s Lesson Overviewhttps://youtu.be/whtNDBIhczQ?list=PLr3ppdrDHkLqr5iUjCutB9ZPPn_qWY1TS (3:16)
3. When blood leaves the heart, it is carried throughout the body in blood vesselsHeart & blood vessels form a closed system for the flow of blood3 main types of blood vessels:ArteriesCapillariesVeinsBlood Vessels
4. Carry blood AWAY from the heartAre more muscular & elastic than veins(because they receive blood as it is pumped from the ventricles under high pressure)Arteries
5. Pulmonary arteries (R & L)Carry deoxygenated blood from the RV to the lungs Only arteries in the body that carry deoxygenated bloodArteries
6. Aorta=largest artery in the bodyReceives blood from LVBranches into all the other arteries that supply blood to the bodyArteries
7. Aorta1st branch of the aorta=coronary artery which carries blood to the myocardiumOther branches carry blood to the rest of the body (head, arms, abd, legs, etc.)Arteries
8. Coronary Artery Blood flow (watch to 44sec)https://www.youtube.com/watch?v=tBQa8IBzP6I
9. ArteriolesSmallest branches of arteriesConnect with capillariesArteries
10. Artery Man (watch to 2:20)https://www.youtube.com/watch?v=0paErJ-FhF8
11. Carry blood BACK to the heartAre thinner & have less muscle tissue than arteriesVeins
12. Most have valves to keep blood from flowing backwardVeins
13. Pulmonary Veins (2 R & 2 L)Carry oxygenated blood from the lungs to the LAOnly veins in the body that carry oxygenated bloodVeins
14. VenulesSmallest branches of veinsConnect with capillariesVenules join together &, becoming larger, form veinsVeins continue to join together until they form the 2 largest veins Veins
15. 2 largest veins=superior vena cava (SVC) & inferior vena cava (IVC)SVC brings deoxygenated blood from upper part of body to heartIVC brings deoxygenated blood from lower part of body to heartVeins
16. SVC and IVC (watch to 2:35)https://www.youtube.com/watch?v=sI6yXy3u2sI
17. Connect arterioles with venulesLocated in close proximity to almost every cell in the bodyCapillaries
18. Have thin walls that contain only one layer of cellsThin walls allows for exchange of O2 & nutrients to cells and CO2 & metabolic wastes from cellsCapillaries
19.
20. Food for thought!!!https://www.youtube.com/watch?v=6kmmtBMGHvI&list=PLr3ppdrDHkLqr5iUjCutB9ZPPn_qWY1TS&index=11 or if blocked by content keeper https://www.youtube.com/watch?v=T9Y4o_BqC0A
21. http://www.embryology.ch/anglais/pcardio/umstellung01.htmlFetal Circulation