Understanding Heart Function and Models

Maggie from Plano Public Library guides viewers through building a heart model using household items. The activity demonstrates how the heart pumps blood, focusing on cardiology. The video covers heart anatomy, including chambers and valves, and provides a list of materials needed. Viewers are encouraged to conduct the experiment, observe the heart model's function, and mimic their heartbeat rhythm.

What is the main focus of the heart model activity?

• To explore the nervous system

• To study the respiratory system

• To understand how the heart pumps blood

• To learn about the digestive system

Which chambers of the heart receive blood?

• Left and right ventricles

• Left and right atria

• Right atrium and left ventricle

• Left atrium and right ventricle

What is the role of valves in the heart?

• To slow down the heartbeat

• To store oxygen

• To increase blood pressure

• To prevent blood from flowing backwards

Which of the following is NOT a required material for the heart model experiment?

• Plastic cups

• Bendy straws

• Red food dye

• Modeling clay

What is the purpose of using red food dye in the experiment?

• To increase the water's viscosity

• To help visualize the blood flow

• To make the model look realistic

• To prevent water evaporation

What should you do after checking your pulse for 10 seconds?

• Change the straw position

• Record the number of beats

• Increase the water flow

• Try to mimic the rhythm with the heart model

What happens when you squeeze the ventricle and pinch the straw between the atrium and ventricle?

• The straw collapses

• The model stops working

• The water flows backwards

• The water is pushed through the straw