Heart valve

inflexible, calcified valves; faulty valves that permit reverse blood flow (regurgitation); faulty (deviant openings) in the septum, aorta, or pulmonary artery; or abnormally high velocity of blood flow through a normal structure. Supposedly blood generally flows soundlessly through the heart; yet, these conditions can generate tumultuous blood flow resulting in auscultation of swooshing or gusty sound over the precordium (Weber & Kelley, 2014). S1 & S2 are the most evident heart sounds with S1…

Heart murmurs are constantly diagnosed in people, but what do heart murmurs do? Does it harm the host? It all depends on the type. From there, we dig deeper. According to http://www.madsci.org/posts/archives/1999-08/933633819.Me.r.html, Heart murmur is the sound that is made because the blood passing through the heart’s valves and chambers make a sound. Sometimes, the valve doesn’t open entirely, and the blood goes back to the chamber it just left. When that happens, it makes a swishing noise,…

On our way up to the heart, we move through the venules and into the dorsal digital vein. We can finally breathe. Oh, wait, we can’t breathe carbon dioxide! As we continue up, we move through the dorsal venous arch, up the anterior tibial vein, climb the popliteal vein and femoral vein. Only a two veins to go! We continue through the external iliac vein and right into the inferior vena cava! We are now in the right side of the heart, literally, the right atrium. The SA node’s…

years, open-heart surgery has been the sole option when it comes to valvereplacements in the heart. Today, with the help of fluoroscopy, a non-surgical approach has beenevolving and is changing the face of medicine. Transcatheter Valve Replacement (TVR), is apercutaneous technique that uses fluoroscopic guidance to replace a diseased or dysfunctionalvalve without ever having to go under the knife. To be able to intervene percutaneously is the“most exciting advancement in the treatment of valve…

The Human Heart: A General Description The heart is the main organ of the cardiovascular system in the human body. Its primary function is to pump oxygen- and nutrient-rich blood throughout the 60,000 miles of blood vessels that make up this system ("Heart, 2015"). About the size of a clenched fist, the heart is located in the middle of the chest, between the lungs and nestled behind the ribcage. It lies a little to the left of the sternum. The shape of the heart is reminiscent of an upside…

vessels? Which vessels carry blood towards the heart? Which carry blood away from the heart? Where does gas exchange occur? The functions of the cardiovascular system are: pumping blood to body tissues and organs; maintaining homeostasis; and transport gases, waste, and hormones. The different types of blood vessels are: arteries, capillaries, and veins. The vessels that carry blood towards the heart are veins and the vessels that carry blood away from the heart are arteries. Gas exchange occurs…

Identify or trace the path of a red blood cell through all anatomical/structural areas of the heart. The path of a RBC consist of it first beginning in the heart as the RBC transports oxygen into the aorta by the aortic valve through contracting of the left ventricle. From the aorta, the RBC then travels through an artery with the help of arterioles to reach the capillaries. When in the capillary, the oxygen molecule that is carried by the RBC then detaches and travels through the capillary into…

circulatory system. They have single circulation. In reptiles, they have double circulation. Their heart can move around because they lack of diaphragm. Lastly, the mammals have double circulation because it can pumps oxygenated and deoxygenated blood to the lungs. The function of circulatory system in closed loop is that blood travels through…

This is in the right atrium. It generates electrical pulses regularly, which then spread throughout the heart allowing it to pump. The wave of excitation is stopped by the non-conducting disc of tissue located at the bottom of the atria. It prevents the wave from causing the ventricles to contract too early. The only path to the ventricles is through another…

Identify or trace the path of a red blood cell through all anatomical/structural areas of the heart. • The red blood cell carrying oxygen is pushed into the aorta through the aortic valve by contraction of the left ventricle (Marieb, Mitchell, Smith, 2013, pg. 446). • From the aorta, the red blood cell travels into one of the arteries from the arterioles then will hit the capillaries (Marieb, Mitchell, Smith, 2013, pg. 446). • Within the capillary, the oxygen molecule that is taken by the red…