BLG 10A/B Lecture Notes - Lecture 20: Posterior Interventricular Sulcus, Posterior Interventricular Artery, Anterior Interventricular Branch Of Left Coronary Artery

• School: Ryerson University
• Department: Biology
• Course: BLG 10A/B
• Professor: Emily Agard

Document Summary

Chapter 18: the heart: heart = four chambers basically two pumps side-by-side (fig. 18. 5b,d: coronary sulcus, or atrioventricular groove encircles the junction of the atria and ventricles, anterior interventricular sulcus contains the anterior interventricular artery and continues as posterior interventricular sulcus four chambers (fig. 1 coronary sinus returns blood supplied to the myocardium left atrium receives oxygenated blood returning from the lungs through four pulmonary veins (fig. 18. 6) between the atria and ventricles and at the openings of the large arteries exiting the heart: atrioventricular (av) valves located between atria and ventricles (fig. Coronary circulation = functional blood supply of the heart. Action potentials cardiac myocytes divided in two types based on action potential appearance: (cid:272)o(cid:374)t(cid:396)a(cid:272)tile (cid:272)a(cid:396)dia(cid:272) (cid:373)us(cid:272)le (cid:272)ells = (cid:862)fast (cid:373)(cid:455)o(cid:272)(cid:455)tes(cid:863, pa(cid:272)e(cid:373)ake(cid:396) (cid:272)a(cid:396)dia(cid:272) (cid:373)us(cid:272)le (cid:272)ells = (cid:862)slo(cid:449) (cid:373)(cid:455)o(cid:272)(cid:455)tes(cid:863) fast myocytes contractile cardiac muscle cells (fig. 18. 12: part of the intrinsic cardiac conduction system (fig.