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leerjaar 2 TTO - The circulatory system 3.1 and 3.2, 3.4, 3.3
Unit 3 The circulatory system
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Unit 3 The circulatory system
Slide 1 - Tekstslide
The circulatory system
Slide 2 - Woordweb
3.1 Blood
Blood transports everything your body need
(heat, nutrients, oxygen, waste products)
Blood contains:
-
blood plasma
(Proteins- fibrinogen for clotting blood,
water, carbon dioxide
oxygen waste products
nutrients
Slide 3 - Tekstslide
Red blood cells
small round discs,
no nucleus
red pigment: haemoglobin absorb and release oxygen
Slide 4 - Tekstslide
white blood cells
do not have a fixed shape
do have a nucleus
destroy pathogens
Slide 5 - Tekstslide
platelets
fragments of cells that have broken up
- Clotting when the blood is outside the vessels
Trombosis- clottering of blood in the vessel
Slide 6 - Tekstslide
Slide 7 - Video
3.2 Blood circulation
Slide 8 - Tekstslide
Slide 9 - Tekstslide
Pulmonary circulation
Red=O2
Blue=CO2
(absorb 02 / release CO2)
Pulmonary circulation
Right side heart
lungs
Left side heart
Slide 10 - Tekstslide
systemic circulation
Release O2 to every living cell (respiration)
absorb CO2
Left side heart
- every organ
right side heart
Slide 11 - Tekstslide
Respiratory system and Circulatory system
Slide 12 - Tekstslide
3.4 Blood vessels
3 types of blood vessels
arterie, capillarie, vein
Slide 13 - Tekstslide
Artery
From heart to organs
(red) transport O2
walls are:
- thick, firm, elastic
High blood pressure
Slide 14 - Tekstslide
Capillaries
Release O2 into organs
Absorb Co2 into bloodstream
- one cell layer tick walls
- white bloodcells can go between the cells into the tissue
Slide 15 - Tekstslide
Slide 16 - Video
Veins
Transport CO2 from organs to the heart
- low bloodpressure
thinner, less elastic
Includes valves
- The blood can flow in 1 direction
Slide 17 - Tekstslide
3.3 The heart
Slide 18 - Tekstslide
the heart is part of the systemic circulation.
It needs O2 (respiration) the coronary arteries provide O2 to the heart.
The coronary veins brings CO2 back to the heart
Slide 19 - Tekstslide
the heart
Slide 20 - Tekstslide
coronary artery, capillaries, coronary vein
Slide 21 - Tekstslide
pulmonary circulation /
septum, / systemic circulation
Slide 22 - Tekstslide
valves
Slide 23 - Tekstslide
Slide 24 - Tekstslide
Cardiac cycle - 70 times a minute= heart rate
Slide 25 - Tekstslide
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