https://padlet.com/tlcarlson1/byfa9cv7ritj 5th Hour en-us 2019-04-10 16:08:10 UTC 2026-01-22 03:40:35 UTC hello@padlet.com https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350431906 The heart has 4 chambers that pump blood. It has 3 layers the epicardium, myocardium, and endocardium that make up the heart wall. The cardiac skeleton stabilizes position of heart valves and physically isolated the atrial muscle tissue from the ventricular muscle tissue. A heart attack happens when coronary circulation becomes blocked.]]> 2019-04-10 16:15:52 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350431906 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350432104 There are 2 types of cardiac muscle cells involved in a heartbeat: contractile cells which produce contractions that propel blood, and noncontractile cells which control and coordinate the activities of the contractile cells. A heartbeat has 3 phases: rapid depolarization, the plateau, and repolarization ]]> 2019-04-10 16:16:16 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350432104 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350432524 Two phases of the cardiac cycle: systole and diastole. Systole is contraction while diastole is relaxation. A stethoscope is used to listen to the four heart sounds. There is four heart sounds that are made when valves open and close. ]]> 2019-04-10 16:17:00 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350432524 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350432669 Cardiac muscle contractions is an active process, but relaxation is entirely passive. The atrial reflex involves adjustments in heart rate response to increase the venous return which is the flow of venous blood into the heart. The amount of blood that is pumped out of a ventricle with each heartbeat depends on filling time which is the duration of ventricular diastole when blood can flow into the ventricles.]]> 2019-04-10 16:17:18 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350432669 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350433601 The term heart dynamics, or cardiodynamics, refers to the movement and forces generated during cardiac contractions.]]> 2019-04-10 16:18:55 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350433601 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350437000 Heart is a pump]]> 2019-04-10 16:26:07 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350437000 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350437204 Hearts job is to maintain pressure]]> 2019-04-10 16:26:31 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350437204 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350439456 The heart is divided laterally by the septum.]]> 2019-04-10 16:30:55 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350439456 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350439657 The heart Weighs around 250-350 grams ]]> 2019-04-10 16:31:14 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350439657 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350440303 The Atria is the receiving chamber.]]> 2019-04-10 16:32:22 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350440303 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441318 The heard sounds are caused by valves closing inside the heart. ]]> 2019-04-10 16:34:29 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441318 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441408 2019-04-10 16:34:39 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441408 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441492 Heart powers entire circulatory system]]> 2019-04-10 16:34:48 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441492 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441570 Arteries carry blood away from the heart]]> 2019-04-10 16:34:58 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441570 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441606 When the aortic and smeilunar valve close, it makes a dub sound.]]> 2019-04-10 16:35:02 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441606 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441922 Epicardium, Myocardium, and Endocardium are the three layers of the heart wall]]> 2019-04-10 16:35:36 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350441922 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350442043 WE ALL LOVE ANATOMY BECAUSE OF MRS.CARLSON 😊]]> 2019-04-10 16:35:50 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350442043 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350442153 The first number of the blood pressure is peak pressure ]]> 2019-04-10 16:36:05 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350442153 https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350442298 the aorta is the biggest artery in the body]]> 2019-04-10 16:36:24 UTC https://padlet.com/tlcarlson1/byfa9cv7ritj/wish/350442298