https://padlet.com/tlcarlson1/q98cnvnwv52q 3rd Hour en-us 2019-04-10 13:13:40 UTC 2019-04-10 15:11:00 UTC hello@padlet.com https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350384614 The bulk of the heart consists of the muscular myocardium while the endocardium lines the inner surface of the heart. Cardiac muscle cells are interconnected by intercalated discs, which convey the force of contraction from cell to cell and conduct action potentials. ]]> 2019-04-10 14:48:01 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350384614 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350384693 Heart dynamics are movements and forces generated during cardiac contraction; each time the heart beats 2 ventricles eject equal amounts of blood. ]]> 2019-04-10 14:48:09 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350384693 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350385214 Cardiac muscle cells have a long refractory period, so rapid  stimulation produces isolated contractions. ]]> 2019-04-10 14:49:13 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350385214 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350387148 In the cardiac cycle, there are alternating periods of contraction and relaxation. Another word for contraction is systole, whereas another word for relaxation is diastole. Whe the heart contracts the chamber squeezes blood into an adjacent chamber or into an arterial trunk, pressure rises, followed by relaxation. When the heart relaxes the chamber fills with blood and prepares for the start of the next cycle, and pressure falls. ]]> 2019-04-10 14:52:56 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350387148 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350387388 The right atrium receives blood from systemic circuit. The right ventricle takes blood passed from the right atrium and pumps it into the pulmonary circuit. The left atrium collects blood from the pulmonary circuit. The left ventricle takes blood emptied from the left atrium and pumps it back into the systemic circuit.]]> 2019-04-10 14:53:23 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350387388 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350394005 The aorta is about as big around as a garden hose.]]> 2019-04-10 15:06:17 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350394005 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350394623 An avg. persons heart beats 2-3 billion times in their lifetime.]]> 2019-04-10 15:07:26 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350394623 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395308 blood is brighter red when exposed to oxygen]]> 2019-04-10 15:08:46 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395308 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395352 Jahnavi Pingali 
The size of the heart is the size of two fists together.]]> 2019-04-10 15:08:52 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395352 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395442 Arteries carry blood away from the heart while veins bring blood to the heart]]> 2019-04-10 15:09:01 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395442 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395505 Ventricles are the biggest part of the heart]]> 2019-04-10 15:09:08 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395505 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395515 The size of the average human heart is two fists clasped together - Erik]]> 2019-04-10 15:09:09 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395515 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395567 The “lub-dub” sounds your heart makes are the valves opening and closing]]> 2019-04-10 15:09:16 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395567 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395619 Heart Beats 35 million beats a year]]> 2019-04-10 15:09:24 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395619 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395620 The “lubb” sound of the heart is caused by the mitral and tricuspid calves. ]]> 2019-04-10 15:09:24 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395620 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395645 Kaden- your heart weighs 250 to 350 grams]]> 2019-04-10 15:09:27 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395645 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395729 The pulmonary artery is the only artery that carries deoxygenated blood.]]> 2019-04-10 15:09:36 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395729 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395790 Abbie Reuther 
the hearts main concern is to maintain pressure ]]> 2019-04-10 15:09:43 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395790 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395919 The heart doesn’t regulate emotions. :(:(:(]]> 2019-04-10 15:10:01 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395919 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395972 The heart weight is more on the left side of the body]]> 2019-04-10 15:10:06 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350395972 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350396366 The atrias controls low pressure and the ventricles controls high pressure (systole). ]]> 2019-04-10 15:10:52 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350396366 https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350396446 The fibrous pericardium is made up of dense connective tissue. ]]> 2019-04-10 15:11:00 UTC https://padlet.com/tlcarlson1/q98cnvnwv52q/wish/350396446