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• Instruccions a seguir pels alumnes per realitzar la pràctica “The circulatory system”. • By • Mrs Olga (Doctor )


The Circulatory system Fifth grade CEIP Pere IV 20 April, 2012


What is The Circulatory System?


Dissect a lamb's heart


What do we need? • Gloves. • Heart of lamb. • Tray. • Straws.


What do we need? • Scissors. • Tweezers. • Scalpel.


The Heart


Parts of your heart: •Pulmonary veins •Left atrium •Mitral valve •Left ventricle •Aortic valve •Aorta •Right atrium •Tricuspid valve •Right ventricle •Superior vena cava


First:

• Guide the heart, which note that has a flatter face(back) and a more convex (front) and ending in a point at the lower end. Place the heart on the dissection tray, resting on the back.


Second:

Identify external parts of the heart and vessels in and out of this organ. Put a straw into: • Aorta •Left Ventricle • Pulmonary vein •Left Atrium • Pulmonary artery •Right Ventricle • Superior vena cava •Right Atrium

http://www.youtube.com/watch?feature=player_embedded&v=quD_W-


Third:

• Make a cut with scissors, beginning in the pulmonary artery. You can see the right ventricle. • Make another cut, starting in the aorta. You can see the left ventricle. • To compare the different wall thickness of both ventricles


Finally:

Identify : • Left atrium • Mitral valve • Left ventricle • Aorta • Right atrium • Tricuspid valve • Right ventricle


Thank you very much. do not forget: PICK-UP


Heart dissection  

Treball a l'aula sobre la disecció del cor.

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