The pericardium is the outer most membrane of the heart that secretes a fluid that lubricates the heart to prevent friction.
The arteries of the heart are made of smooth muscle and are more elastic and thicker than the veins.
The auricles are ear-like flaps on the top of the heart that allow the heart to receive more blood.
The ventricles have thicker and more muscular walls than the atria because they are responsible for providing the body with oxygenated blood.
Coronary Sinus:
Inferior Vena Cava:
The Right Atrioventricular Valve (Tricuspid Valve) and the Left Atrioventricular Valve (Bicuspid Valve (Mitral)
Tricuspid Valve
If the valves were not "anchored," blood would leak back into the atrias which can lead to heart failure.
Semilunar Valves make sure the blood is going in the right direction. They prevent backflow from the arteries to the ventricles during ventricle diastole. The semilunar valve also helps maintain pressure on major arteries.
The right of the heart is responsible for receiving blood, if one of the right side valves was not working, then blood would get stuck in the lower part of the body, causing swelling in the feet and ankles.
The left side of the heart is responsible for pumping blood to the body. If one of the left side valves was not working, then blood flow would be reduced to the body, causing in low oxygen to the body, creating tiredness.
The left side of the heart is thicker and more muscular than the right side, because the left side of the body is responsible for pumping blood to the entire body, whereas the right side is thinner and smaller because the blood only has to go the lungs.
Video of our sheep heart dissection:
Part 1: https://youtu.be/tQwVt3rncsI
Part 2: https://youtu.be/Wlam1BY1SXk
Citations:
"ANATOMY - Health And Human Sciences Mbbs Year 2 with X at University of Queensland - StudyBlue." StudyBlue. N.p., n.d. Web. 15 Nov. 2015.
"Pericardium and Heart Dissector." Electronic Companion Guide for Dissection of the Human Body. N.p., n.d. Web. 15 Nov. 2015.
"Heart Valve Surgery - Series." Mercury Web. Mercury Web, n.d. Web. 15 Nov. 2015.
The arteries of the heart are made of smooth muscle and are more elastic and thicker than the veins.
The auricles are ear-like flaps on the top of the heart that allow the heart to receive more blood.
The ventricles have thicker and more muscular walls than the atria because they are responsible for providing the body with oxygenated blood.
Coronary Sinus:
Inferior Vena Cava:
The Right Atrioventricular Valve (Tricuspid Valve) and the Left Atrioventricular Valve (Bicuspid Valve (Mitral)
Tricuspid Valve
If the valves were not "anchored," blood would leak back into the atrias which can lead to heart failure.
Semilunar Valves make sure the blood is going in the right direction. They prevent backflow from the arteries to the ventricles during ventricle diastole. The semilunar valve also helps maintain pressure on major arteries.
The right of the heart is responsible for receiving blood, if one of the right side valves was not working, then blood would get stuck in the lower part of the body, causing swelling in the feet and ankles.
The left side of the heart is responsible for pumping blood to the body. If one of the left side valves was not working, then blood flow would be reduced to the body, causing in low oxygen to the body, creating tiredness.
The left side of the heart is thicker and more muscular than the right side, because the left side of the body is responsible for pumping blood to the entire body, whereas the right side is thinner and smaller because the blood only has to go the lungs.
Part 1: https://youtu.be/tQwVt3rncsI
Part 2: https://youtu.be/Wlam1BY1SXk
Citations:
"ANATOMY - Health And Human Sciences Mbbs Year 2 with X at University of Queensland - StudyBlue." StudyBlue. N.p., n.d. Web. 15 Nov. 2015.
"Pericardium and Heart Dissector." Electronic Companion Guide for Dissection of the Human Body. N.p., n.d. Web. 15 Nov. 2015.
"Heart Valve Surgery - Series." Mercury Web. Mercury Web, n.d. Web. 15 Nov. 2015.
No comments:
Post a Comment