1. Coronary circuit
   1. Electrical Flow
      1. SA node
         1. Atrioventricular
            1. AV node
            2. AV bundle of His
            3. conductions myofibers- PURKINJE FIBERS
2. Main Topic 7
3. Pulmonary circuit
   1. pulmonary arteries
      1. capillary beds of Lungs
         1. Gas exchange happens
         2. Pulmonary veins
            1. Topic
4. Systematic Circuit
5. Heart
   1. Anatomy
      1. Layers of the heart
         1. Epicardium
            1. Adipose tissue
            2. coronary arteries
            3. cardiac veins
         2. Myocardium
            1. Cardiac muscle
         3. Endocardium
            1. Endothelium
            2. Simple Squamous epithelium
         4. Apilary Muscles
            1. Formed the AV valves
            2. Chardae tendiae
            3. Heart strings
            4. tiny white collagenic cords that anchor the cusps to the ventricular walls
         5. Syncitial tissue
            1. No electrical insulating barrier within walls
   2. Location
      1. Top @ Sternal Angle (T4-T8
         1. Subtopic 1
            1. The heart is about the size of your fist and is located sub-sternal, center thoracic, superior to the stomach with the apex on the left.
            2. Topic
            3. Topic
   3. Sounds
      1. M sound
         1. 5th intercostal Space
            1. Mitral/Bicuspit AV valve
            2. Costocartilagenous junction
      2. P sound
         1. 2nd Intercostal space
            1. pulmonary Semilunar valve
            2. costosternal junction
      3. T sound
         1. 5th Intercostal space
            1. Tricuspid valve
            2. costosternal junction
      4. A sound
         1. 2nd Intercostal space
            1. Aortic semilunar valve
            2. costosternal junction
6. Things to know about heart
   1. ( Ventral Artery dissection)
      1. piece of artery (clot) breaks off ( tunice media) into blood stream
         1. leads to
            1. Heart attack
            2. Stroke
   2. Varicose vein
      1. vein that is dilated and twisted
         1. Due to leaky Venous Valves
   3. Ventricular fibrilation
      1. Parts of Myocardium contract random
         1. no blood is pumped
         2. treated with electrical defribrillator
7. Blood flow through the heart
   1. Right Atrium
      1. R. A/V valve
         1. R. Ventricle
            1. pulmonary semilunar valve
            2. pulmonary trunk
      2. Tricuspid
   2. Left atrium
      1. Left A/V valve
         1. Bicuspid
         2. Left ventricle
            1. Aortic Semilunar Valve
            2. Ascending aorta
            3. Aortic arch
            4. descending (thoracic) aorta
            5. Before diaphragm
            6. abdominal aorta
            7. Common Iliac artery
            8. External Iliac artery
            9. Inguinal Ligament
            10. Femoral Artery
            11. Passes by the Adductor Canal / Hiatus
            12. Popliteal artery
            13. Divides into
            14. anterior tibial artery
            15. Dossal Pedis arteries
            16. posterior tibial artery
            17. Plantar arteries
            18. Superior Mesenteric A.
            19. Arterioles
            20. capillaries
            21. Venules
            22. Small Intestine
            23. Superior Mesenteric Vein
            24. Hepatic Portal
            25. Venules, sinosoid, venules in Liver
            26. Hepatic Vein
            27. Inferior Vena Cava
            28. Brachiocephalic trunk
            29. right Subclavian artery
            30. Axillary A.
            31. Brachial A.
            32. Radio A.
            33. Ulnar A.
            34. right Common Carotid
            35. Right Internal Carotid A.
            36. R. Ant. Cerebral A.
            37. Arterioles/Capillaries/venules in Frontal love
            38. Right Internal Jugular Vein
            39. R. Braquiocephalic Vein
            40. Superior Vena cava
            41. Left Common Carotid Artery
            42. Left Subclavian A.