1.4 Breathing

Welcome- 2EH
  • Please take your seat
  • Get you notebook , book and pen.
  • Take out your coat and wait quietly for the Assignment in the next dia. 
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Slide 1: Slide
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This lesson contains 24 slides, with interactive quizzes, text slides and 2 videos.

time-iconLesson duration is: 60 min

Items in this lesson

Welcome- 2EH
  • Please take your seat
  • Get you notebook , book and pen.
  • Take out your coat and wait quietly for the Assignment in the next dia. 

Slide 1 - Slide

To do
Get your book
Complete ex. 10 , p.26
HOW IT FITS TOGETHER — the world we live in
Done?
Begin reading basic 1.4 
timer
5:00

Slide 2 - Slide

Today

  • What is the difference between inhaled and exhaled air?
  • How are inhalation and exhalation achieved? 

Slide 3 - Slide

What process occurs (happens) in the chloroplast?
A
respiration
B
breathing
C
excretion
D
photosynthesis

Slide 4 - Quiz

What is the function of the epiglottis (strottenklepje)?
A
Closes the nasal cavity when swalloing
B
Protects the windpipe (and oesaphagus)
C
Makes sure food cannot get into your windpipe

Slide 5 - Quiz

Which statement about breathing through your nose is true?
A
The air contains more bacteria when you breathe through your nose.
B
The air is colder when you breathe through your nose.
C
The air is filtered and is warmed up when you breathe through your nose.
D
The air is filtered only when you breathe through your mouth.

Slide 6 - Quiz

What is the function of mitochondria?
A
The powerhouse of the cell
B
The powerhouse of the cell
C
The powerhouse of the cell
D
The powerhouse of the cell

Slide 7 - Quiz

Moistens and warms inhaled air
Makes sure food cannot get into your windpipe

flap that closes off the nasal cavity when you swallow food
Nasal lining

Epiglottis

Uvula

Slide 8 - Drag question

Slide 9 - Slide

Alveoli
  • Place where gas exchange happens
  • Oxygen goes in
  • Carbon dioxide goes out
  • Transportation of gases through red blood cells

Slide 10 - Slide

Gas exchange 
1) Oxygen comes from the air we inhale into the alveoli -> Oxygen goes from alveoli through the wall into the blood of the lung capillary -> blood brings Oxygen to all the cells in the body. 

2) Blood brings Carbon dioxide from cells to the lungs -> Carbon dioxide goes from blood through the walls into the alveoli -> We breath out the Carbon dioxide.

Slide 11 - Slide

Slide 12 - Slide

https://youtu.be/FJQxriDWkMs?si=Va49aUqjNk01ABBR

Slide 13 - Slide

Respiratory muscles
  • Chest breathing: intercostal muscles.

  • Abdominal breathing: diaphragm.

Slide 14 - Slide

Chest breathing
While we breath this way , we contract our  intercostal muscles, squeezing the air out of our lungs. When they relax, we breathe in again due to a difference in air pressure in and out of our lungs. 

Slide 15 - Slide

Slide 16 - Slide

Abdominal breathing
Sometimes you also see your belly move when you breath-->   due to abdominal breathing. Your diaphragm moves up and down. Squeezing out your lungs and creating positive and negative air pressure within your lungs. 

Slide 17 - Slide

Slide 18 - Slide

Slide 19 - Video

Slide 20 - Video

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

Slide 21 - Drag question

Drag the boxes on the right to the correct place in the picture.
Alveolus
Oxygen
Red blood cell
Blood with little oxygen
Blood with lots of oxygen
Air
CO2

Slide 22 - Drag question

Abdominal inhalation:
air is sucked into the lungs
abdominal muscles contract
the diaphragm moves down
the plearul membrane pulls open the lungs
the diaphragm pulls the pleural membrane open

Slide 23 - Drag question

To Do
1. Read basic 1.4 - breathing
2. Complete ex. 1-3 , 5-8 
3. Practice the flash cards out basics 1.1 -1.4 

Slide 24 - Slide