leerjaar 2 TTO - The circulatory system 3.1 and 3.2, 3.4, 3.3

Unit 3 The circulatory system

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Slide 1: Slide

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This lesson contains 25 slides, with interactive quiz, text slides and 2 videos.

Items in this lesson

Unit 3 The circulatory system

Slide 1 - Slide

The circulatory system

Slide 2 - Mind map

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 - Slide

Red blood cells

small round discs,

no nucleus

red pigment: haemoglobin absorb and release oxygen

Slide 4 - Slide

white blood cells

do not have a fixed shape

do have a nucleus

destroy pathogens

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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 - Slide

Slide 7 - Video

3.2 Blood circulation

Slide 8 - Slide

Slide 9 - Slide

Pulmonary circulation

Red=O2

Blue=CO2

(absorb 02 / release CO2)

Pulmonary circulation
Right side heart

lungs

Left side heart

Slide 10 - Slide

systemic circulation

Release O2 to every living cell (respiration)
absorb CO2

Left side heart

- every organ

right side heart

Slide 11 - Slide

Respiratory system and Circulatory system

Slide 12 - Slide

3.4 Blood vessels

3 types of blood vessels

arterie, capillarie, vein

Slide 13 - Slide

Artery

From heart to organs

(red) transport O2

walls are:
- thick, firm, elastic

High blood pressure

Slide 14 - Slide

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 - Slide

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 - Slide

3.3 The heart

Slide 18 - Slide

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

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the heart

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coronary artery, capillaries, coronary vein

Slide 21 - Slide

pulmonary circulation /septum, / systemic circulation

Slide 22 - Slide

valves

Slide 23 - Slide

Slide 24 - Slide

Cardiac cycle - 70 times a minute= heart rate

Slide 25 - Slide