Blood circulation
william harvey
(1578-1657)
GOGNET Claire, GUERIN-LEROY Laurine
Biography
University
Padua, Italy
William Harvey
St-Bartholomew's hospital in charge physician
VS
Galen
William Harvey
- The liver produce the blood
- The heart charges the blood with a vital spirit
- The heart distribute the blood in the body
- The blood comes from what we eat
- The heart is just a pump
- The blood is reused
- Veins and arteries aren't the same thing
1578-1657
129-201
Venous valves
Tourniquet
Venous valve
de motu cordis
Edited in 1628 in FrankfurtExplain his discoveries Functionning of the heart Calculate the capacity of the heart and the total volume of blood in the body
Inside the heart
BLOOD CIRCULATION
Circulation : pumping of blood through the entire body by the heart -Coronary : circulation within the heart-Pulmonary : heart <-> lungs-Systemic : heart <-> cells What is it ?
- Carries blood + dissolved substances (to and from different parts in the body)
- Heart : pumps those around (blood vessels)
- Heart + blood vessels = Circulatory system
Pulmonary circulation (oxygenate and deoxygenate blood)
Blood vessels
Arteries : carry blood away from the heart Elastic fibres : stretch under pressure Thic muscle : contract to push the blood along
Veins : carry blood towards from the heart Valves : stop the blood (going in the the wrong way) Thin muscle : body muscles squeeze veins = push the blood (vessels)
What is in blood?
Digested food
Oxygen and carbon dioxyde
Waste (urea)
Hormones
Plasma
Platelets, white blood cells and red blood cells
As a conclusion
William Harvey's groundbreaking discoveries revolutionized our understanding of blood circulation,challenging centuries-old theories from Galen. Through meticulous experimentation, he demonstrated that blood is recycled through a closed circulatory system, pumped by the heart.
SOURCES
- en.wikipedia.org
- c'est pas sorcier, sang pour sang
- www.worldhistory.org
- 1628, Harvey et la circulation sanguine, le Blob
- www.universalis.fr
- my.clevelandclinic.org : Heart chambers
- www.bbc.co.uk/bitesize : The circulatory system
Left ventricle : thicker walls (pump blood to the body) than the right ventricle (fills only the lungs)Right ventricle size = Left ventricle size Veins : bring blood from the body (except for the lungs) Arteries : carry blood away from the heart
3 steps for the coronary system (heart beat) : - Heart muscles relax = blood flows into the atria - Atria contract = valves open (blood into the ventricles - Valves close (stop blood flowing backwards) + ventricles contract (blood leaves the heart) + atria relaxing and filling with blood CYCLE REPEATING
Red blood cells : no nucleus, haemoglobin (holds and carries oxygen), change shape (capillaries)
White blood cells : nucleus, 2 main ones (lymphocytes and marcophages) -Macrophages : digest micro-organisms -Lymphocytes : make antibodies (against invaders) or antitoxins (against poisons)
Platelets : produce fibrinogin fibres (net) to trap blood cells = blood clot
Blood circulation
Claire
Created on October 15, 2024
Start designing with a free template
Discover more than 1500 professional designs like these:
View
Animated Chalkboard Presentation
View
Genial Storytale Presentation
View
Blackboard Presentation
View
Psychedelic Presentation
View
Chalkboard Presentation
View
Witchcraft Presentation
View
Sketchbook Presentation
Explore all templates
Transcript
Blood circulation
william harvey
(1578-1657)
GOGNET Claire, GUERIN-LEROY Laurine
Biography
University
Padua, Italy
William Harvey
St-Bartholomew's hospital in charge physician
VS
Galen
William Harvey
1578-1657
129-201
Venous valves
Tourniquet
Venous valve
de motu cordis
Edited in 1628 in FrankfurtExplain his discoveries Functionning of the heart Calculate the capacity of the heart and the total volume of blood in the body
Inside the heart
BLOOD CIRCULATION
Circulation : pumping of blood through the entire body by the heart -Coronary : circulation within the heart-Pulmonary : heart <-> lungs-Systemic : heart <-> cells What is it ?
Pulmonary circulation (oxygenate and deoxygenate blood)
Blood vessels
Arteries : carry blood away from the heart Elastic fibres : stretch under pressure Thic muscle : contract to push the blood along
Veins : carry blood towards from the heart Valves : stop the blood (going in the the wrong way) Thin muscle : body muscles squeeze veins = push the blood (vessels)
What is in blood?
Digested food
Oxygen and carbon dioxyde
Waste (urea)
Hormones
Plasma
Platelets, white blood cells and red blood cells
As a conclusion
William Harvey's groundbreaking discoveries revolutionized our understanding of blood circulation,challenging centuries-old theories from Galen. Through meticulous experimentation, he demonstrated that blood is recycled through a closed circulatory system, pumped by the heart.
SOURCES
Left ventricle : thicker walls (pump blood to the body) than the right ventricle (fills only the lungs)Right ventricle size = Left ventricle size Veins : bring blood from the body (except for the lungs) Arteries : carry blood away from the heart
3 steps for the coronary system (heart beat) : - Heart muscles relax = blood flows into the atria - Atria contract = valves open (blood into the ventricles - Valves close (stop blood flowing backwards) + ventricles contract (blood leaves the heart) + atria relaxing and filling with blood CYCLE REPEATING
Red blood cells : no nucleus, haemoglobin (holds and carries oxygen), change shape (capillaries)
White blood cells : nucleus, 2 main ones (lymphocytes and marcophages) -Macrophages : digest micro-organisms -Lymphocytes : make antibodies (against invaders) or antitoxins (against poisons)
Platelets : produce fibrinogin fibres (net) to trap blood cells = blood clot