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Biol 216 Heart Notes

by: Charissa Notetaker

Biol 216 Heart Notes biol 216

Marketplace > Liberty University > Biology > biol 216 > Biol 216 Heart Notes
Charissa Notetaker

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About this Document

lab PowerPoint and book
Human Anatomy and Physiology 11 Lab
Ms. Lenz
Class Notes
Heart, Cardiovascular, veins, arteries, coronary
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This 3 page Class Notes was uploaded by Charissa Notetaker on Wednesday October 5, 2016. The Class Notes belongs to biol 216 at Liberty University taught by Ms. Lenz in Fall 2016. Since its upload, it has received 4 views. For similar materials see Human Anatomy and Physiology 11 Lab in Biology at Liberty University.


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Date Created: 10/05/16
Cardiovascular: Heart Heart: A Double Pump 1. Pulmonary circuit. 2. Systemic circuit. a. Cardiac circuit. Surface Anatomy 1. Atria are smaller than ventricles. 2. Left ventricle is much larger and stronger than the right. 3. Remember: base, apex, ventricle, atria, interventricular sulcus, coronary sulcus, auricles, aorta, superior and inferior vena cava, pulmonary trunk, pulmonary veins, and coronary sinus. Internal Anatomy 1. Trabeculae carneae. 2. Atrioventricular valves (AV). a. Right – bicuspid, mitral. b. Left – tricuspid. c. Chordae tendineae. d. Papillary muscles. 3. Semilunar valves. a. Aorta. b. Pulmonary. Blood Flow through the Heart 1. Right atrium. 2. Tricuspid valve. 3. Right ventricle. 4. Pulmonary semilunar valve. 5. Pulmonary artery. 6. Lungs. 7. Pulmonary veins. 8. Left atrium. 9. Bicuspid valve. 10. Left ventricle. 11. Aortic semilunar valve. 12. Aorta. 13. Body. 14. Superior and inferior vena cava. 15. Coronary sinus. Cardiac Cycle 1. Sinoatrial (SA) node – “pacemaker” a. Begins heart contractions. b. Atrial contraction. 2. Atrioventricular (AV) node. 3. AV bundle. 4. Bundle branches. 5. Purkinje fibers. 6. Systole – chamber contraction. 7. Diastole – chamber relaxation. Electrocardiogram (ECG) 1. P wave – atrial depolarization. 2. QRS complex – ventricular depolarization. 3. T wave – ventricular repolarization. 4. The electrical event of depolarization implies the physical event of contraction. Blood Volume 1. End diastolic volume (EDV) – volume in ventricle at the end of diastole. a. 120 mL in the ventricle. 2. End systolic volume (ESV) – volume in ventricle at the end of systole. a. 50 mL in the ventricle. 3. Stroke volume (SV) = EDV – ESV. a. SV = 120 mL -50 mL  70 mL. Coronary Circuit 1. Arteries: a. Left coronary artery. b. Right coronary artery. c. Circumflex artery. d. Interventricular artery. 2. Veins: a. Small cardiac vein. b. Middle cardiac vein. c. Great cardiac vein. d. Coronary sinus.


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