Respiration and breathing lesson 3

• Biologie
• Middelbare school
• havo
• Leerjaar 2

HAVE READY:

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HW UPLOADED /GLOSSARY COMPLETED

KERBOODLE PAGE 69

NOTES 

TODAY- LESSON 3:

VENTILATION

THE MOVEMENT OF AIR INTO AND OUT OF YOUR LUNGS

Thoracic inhalation:

1. intercostal muscles contract
2. ribs move up
3. ribs pull the pleural membrane open
4. pleural membrane pulls open the lungs
5. air is sucked into the lungs

Thoracic exhalation:

1. intercostal muscles relax
2. ribs move down
3. ribs push the pleural membrane closed
4. pleural membrane pushes closed the lungs
5. air is pushed out of the lungs

Abdominal inhalation:

1. abdominal muscles contract
2. the diaphragm moves down
3. the diaphragm pulls the pleural membrane open
4. pleural membrane pulls open the lungs
5. air is sucked into the lungs

Abdominal exhalation:

1. abdominal muscles relax
2. the diaphragm moves up
3. the diaphragm pushes the pleural membrane closed
4. pleural membrane pushes closed the lungs
5. air is pushed out of the lungs

THORACIC INHALATION

THORACIC EXHALATION

ABDOMINAL INHALATION

ABDOMINAL EXHALATION

intercostal muscles contract

intercostal muscles relax

diaphragm relaxes

diaphragm contracts

ribs push the pleural membrane closed

the diaphragm moves up

the diaphragm pulls the pleural membrane open

hw for next lesson:

- finish ppc 4

- WORKSHEET LUNGS AND BREATHING 1

- WB PAGE 48