• Instruccions a seguir pels alumnes per realitzar la pràctica “The

circulatory system”.

• By

• Mrs Olga (Doctor )

The Circulatory The Circulatory systemsystemFifth gradeFifth grade

CEIP Pere IVCEIP Pere IV20 April, 201220 April, 2012

What is The Circulatory

System?

Dissect a lamb's heart

What do we need?

• Gloves.Gloves.

• Heart of lamb.Heart of lamb.

• Tray.Tray.

• Straws.Straws.

What do we need?

• Scissors.Scissors.

• Tweezers.Tweezers.

• Scalpel.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

• 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.

First:

Second:Identify external parts of theheart and vessels in and out of this organ.Put a straw into:• Aorta• Pulmonary vein• Pulmonary artery• Superior vena cava

http://www.youtube.com/watch?feature=player_embedded&v=quD_W-Q8uMc

•Left Ventricle•Left Atrium•Right Ventricle•Right Atrium

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 Thank you very much. do not much. do not

forget: PICK-UPforget: PICK-UP