YR2-CH5&6-LSN2

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

HAVE READY:

GOOGLE CLASSROOM

KERBOODLE PAGE 68

your homework FOR TODAY

TODAY:

- discuss difficult hw assignments

- discuss notes for today

- work on in class assignments.

IN CLASS ASSIGNMENTS LSN 1:

- PAPERCLIP 1

- WORKSHEET RESPIRATION 1

- WORKSHEET RESPIRATION 2

ANSWER SHEET IS ON CLASSROOM, CHECK & DISCUSS THE ANSWERS

ANY QUESTIONS ABOUT THE HW ASSIGNMENTS:

NOTES HW FOR LSN 2:

- did you understand all the learning goals?

- did you understand all the key words?

- do you have any questions?

Respiratory system (organs):

1. nose
2. mouth
3. larynx
4. lung
5. bronchi
6. diaphragm
7. pharynx
8. trachea
9. bronchi
10. bronchiole
11. alveoli

STEPS OF BREATHING:

- DO WE INHALE OR EXHALE?

- DO WE BREATHE WITH OUR ABDOMEN OR THORAX?

Thoracic inhalation:

air is sucked into the lungs

intercostal muscles contract

ribs pull the plearul membrane open

the plearul membrane pulls open the lungs

ribs move up

Thoracic exhalation:

air is pushed out of the lungs

intercostal muscles relax

ribs push the plearul membrane closed

the plearul membrane pushes the lungs closed

ribs move down

Abdominal inhalation:

air is sucked into the lungs

abdominal muscles contract

the diaphragm moves down

the pleural membrane pulls open the lungs

the diaphragm pulls the pleural membrane open

Abdominal exhalation:

air is pushed out of the lungs

abdominal muscles relax

the diaphragm  pushes the pleural membrane closed

the pleural membrane pushes the lungs closed

the diaphragm moves up

Spirograms:

• When we breathe air moves into and out of our lungs.
• We can measure how much air moves at a time and put these measurements into a graph.
• These graphs are called Spirograms.
• Take a look at the next slide.

Important words:

You do not need to know all the words in the graph only the most important ones.

• Vital capacity
• Residual volume
• Total lung Capacity
• Tidal volume

Vital Capacity:

• The maximum amount of air you can move with one large inhalation  followed by a large exhalation.
  
• How much is this person's vital capacity?

Vital Capacity

Just under 4 liters.

Residual Volume:

• A small amount of air that always stays behind in the lungs, this is so they do not collapse.
  
• How much is this person's Residual Volume?

Residual Volume

Just over 2 liters.

Total Lung Capacity:

• The maximum amount of air a person's lungs can hold.
• How much is this person's Total Lung Capacity?

Total Lung Capacity

6 liters

Tidal Volume:

• The amount of air a person moves into and out of the lungs when relaxed.
• How much is this person's Tidal Volume?

Tidal Volume

about 0.8 liters

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B

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E

F

Red Muscle Tissue

White Muscle Tissue

WHAT TO DO NOW:

- WORK ON THE IN CLASS ASSIGNMENTS FOR LESSON 2

- COMPLETE THESE FIRST

- THEN DO THE NOTES FOR LESSON 3 WITH THE CORRECT LESSONUP (HW3)