The Amazing Heart: Structure and Functionality

The Amazing Heart: Structure and Functionality

Learning Objective

At the end of the lesson you will be able to describe the structure and functionality of the heart.

What do you already know about the heart's structure and function?

Introduction to the Heart

The heart is a muscular organ that pumps blood through the blood vessels of the circulatory system.

Heart Structure

The heart has four chambers: two atria and two ventricles, and is divided into the right and left sides.

Blood Flow Through the Heart

Deoxygenated blood enters the right atrium, moves to the right ventricle, then to the lungs for oxygenation, and returns to the left atrium and ventricle before being pumped to the body.

Heart Valves

Valves in the heart prevent backward flow of blood, ensuring that blood moves in one direction through the heart.

Heartbeat and Cardiac Cycle

The rhythmic contraction and relaxation of the heart muscle constitute the cardiac cycle, resulting in the heartbeat.

Heart Functionality

The heart's primary function is to pump oxygenated blood to the body's tissues and organs and return deoxygenated blood to the lungs for reoxygenation.

Conclusion and Recap

The heart's structure and functionality are essential for maintaining a healthy circulatory system and overall health.

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.