LAB DAY 4: Heart and lungs dissection
In this day, we dissectioned a heart to see each chambers, the aorta, the veins and the artery.
PROCESS
- Firstly, we had a heart (a pig one).
- Secondly, we cut it through the right and the left heart, but not to the final.
- Thirdly, we oppened it and we could see the atriums and ventricles.
When we oppened the heart we put straws inside some parts: the aorta, the pulmonary artery, the vena cava and the pulmonary vein
When we finished this, we had to anwser some questions (I didn´t have trachea rings):
- Describe the trachea rings. What they could be for?
- What chamber do you get to when introducing a straw through each of this vessels?: aorta, pulmonary artery, vena cava and pulmonary vein.
- Are the walls of the two ventricles the same thickness? Explain why that could be.
- Show the different valves and explain their function. Are they allexactly the same?
- They could be to make the trachea doesn´t bend or close.
- The aorta connects with the left ventricle; the pulmonary artery connects with the right ventricle; the vena cava connects with the right atrium; the pulmonary vein connects with the left atrium.
- They are not the same thickness and the left one is thicker becouse the aorta is stronger.
- Right atrium→ Deoxygenated blood enters the right atrium through the inferior and superior vena cava.
Right ventricle→ Blood inside it then goes through the pulmonary artery.
Left ventricle→ Blood inside it is expelled through the aorta.
VIDEO OF THE PARTS OF THE HEART
PHOTOS ABOUT THE PRACTICE
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