Ms. He's Circulatory system
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Circulatory System
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Transcript of Ms. He's Circulatory system
Circulatory System
BIG IDEA
Circulatory system supplies entire body with oxygenated blood
• Components of Blood• Type of circulation• Blood vessels: Artery, Vein, Capillary• Heart
Circulatory System
Parts of circulatory system:1.Blood2.Blood vessels3.Heart
Blood Components
Type Structure Function%
makeup
Red blood cells
No nucleusDisk-shaped, flexibleContains hemoglobin
Transports oxygen 45
White blood cells
Have a nucleusShort life span
Fights infections <1
Platelets Made of cell fragments
Blood clotting <1
PlasmaProtein-rich liquidContains electrolytes
Carries blood cells 55
Red and White Blood Cells
Overview of Circulation• Pulmonary circulation:
blood flow between the heart and lungs
• Systemic circulation: blood flow from heart to rest of the body
• Cardiac circulation: blood flow within the heart
Pathway of Blood Flow
http://www.tracleer.com/Content/Images/heart-lung-circulation.jpg
Pathway of Blood Flow: Blood Vessels(capillaries)
Lung
Vein pulmonary circulation Artery
HEART
Vein systemic circulation Artery
Body(capillaries)
Blood Vessel Function
Vessel Function Examples
Artery Transports blood AWAY from the heart
AortaPulmonary artery
Vein Transports blood TOWARDS the heart
Vena cavaPulmonary vein
CapillaryExchange substances between blood and body
Capillary beds found throughout body
Pathway of Blood Flow
http://www.tracleer.com/Content/Images/heart-lung-circulation.jpg
Artery
ArteryVein
Vein
Pathway of Blood Flow
http://media.web.britannica.com/eb-media/06/92806-034-95B4D32F.jpg
Oxygenated blood Deoxygenated blood
Capillaries• Walls made up of one
thin layer of cells which allow for rapid diffusion of materials from blood to surrounding tissue
• Materials exchanged:– Gases: oxygen, carbon
dioxide– Nutrients & waste
http://faculty.stcc.edu/AandP/AP/imagesAP2/bloodvessels/endothelia.jpg
Gas Exchange in Capillaries of Body
https://www.cdli.ca/courses/biol2201/unit03_org02_ilo02/cappillarya.JPG
Gas Exchange in Capillaries of Lung
http://media-2.web.britannica.com/eb-media/37/92937-034-1E4EA526.jpg
Pathway of Blood Flow
http://www.tracleer.com/Content/Images/heart-lung-circulation.jpg
Artery
ArteryVein
Vein
Oxygen Carbon dioxide
Carbon dioxide Oxygen
Gas Exchange in Capillaries
Capillaries Oxygen Carbon dioxide
In body
In lung
Capillaries Oxygen Carbon dioxide
In body Out
In lung In
Capillaries Oxygen Carbon dioxide
In body Out In
In lung In Out
Blood Vessel Structure
VesselWall
Thickness
Diagram
Pressure
Artery Thick High
Vein Thin Low
Capillary
Very thin Low
Blood Vessel & Blood Flow
https://www.cdli.ca/courses/biol2201/unit03_org02_ilo02/b_activity.htmlHigh pressure Low pressure
Veins and Blood Flow• Valves open
when muscles contract, allowing blood to return to the heart
• Valves close when muscles relax so that blood cannot flow backwards.
http://www.thecosmeticveincenter.com/images/veins.png
Capillaries and Blood Flow
• Small diameter in capillaries are only wide enough for red blood cells to travel in a single file
• Red blood cells pull each other along like a chain
http://antranik.org/wp-content/uploads/2011/12/red-blood-cells-in-a-capillary.jpg
Blood Flow in Blood Vessels
VesselStructure that aids
blood flowExplanation
Artery Elastic walls Walls expand & contract helping to pump blood
Vein One-way valves
Valves act as doors preventing backward blood flow
Capillary
Small circumferen
ce
Blood cells travel in single file pulling each other along like a chain
Circulatory System Animation
http://www.youtube.com/watch?v=PgI80Ue-AMo
3D model of Working Hearthttps://www.youtube.com/watch?v=NF68qhyfcoM&feature=related
3D cardiac circulation (silent)https://www.youtube.com/watch?v=06iQlVMSB34&feature=fvwrel
The human heart
4 main Chambers
Right atriumLeft atrium
Right ventricle
Left ventricle
Cardiac Circulation
• 4 chambers• 4 valves• 2 arteries• 2 veins• Deoxygenat
ed blood• Oxygenated
bloodhttp://www.sdm.scot.nhs.uk/images/pfo.jpg
Superior vena cava
Inferior vena cava
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary artery
Pulmonary artery
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
to right lung
to left lung
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary artery
Pulmonary artery
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary artery
Pulmonary artery
from right lung
from right lung
from left lung
from left lung
from right lung
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary artery
from right lung
Pulmonary artery
from left lung
from left lung
Pulmonary veinPulmonary vein
Left atrium
Pulmonary artery
Pulmonary vein
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary artery
Pulmonary vein
Mitral valve or bicuspid valve
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary artery
Pulmonary vein
Pulmonary artery
Left atrium
Pulmonary vein
Mitral valve or bicuspid valve
Left ventricle
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary artery
Pulmonary vein
Aortic valve
Pulmonary artery
Left atrium
Pulmonary vein
Mitral valve or bicuspid valve
Left ventricle
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary artery
Pulmonary vein
Pulmonary artery
Left atrium
Pulmonary vein
Mitral valve or bicuspid valve
Aortic valve
Left ventricle
Aorta
Descending aorta
Pulmonary artery
Left atrium
Pulmonary vein
Mitral valve or bicuspid valve
Aortic valve
Left ventricle
Superior vena cava
Inferior vena cava
Right atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary artery
Pulmonary vein
Aorta
Descending aorta
Left atrium
Left ventricle
Right atrium
Right ventricle
4 Chambers
Mitral valve or bicuspid valve
Aortic valveTricuspid valve
Pulmonary valve
Atrioventricular valve
Atrioventricular valve
Semilunar valve
Semilunar valve
4 Valves
ValvesPulmonary valve
(semilunar)
Aortic valve (semilunar)
Mitral / Bicuspid valve (AV)
Tricuspid valve (AV)
Tricuspid Valve Mitral Valve
Aortic ValveTricuspid Valve
Vein
Vein
Vein
Artery
ArteryArtery
Vein
Artery
4 Blood Vessels
Cardiac Circulation
http://humananatomyandphysiology.org/wp-content/uploads/2010/09/texas-heart-institute.jpghttp://www.sdm.scot.nhs.uk/images/pfo.jpg
The Pathway of Blood Flow(capillaries)
Lung
Vein pulmonary circulation Artery
HEART
Vena Cava systemic circulation Aorta
Body(capillaries)
PulmonaryPulmonary
Right atrium
Right ventricleLeft atrium
Left ventricle
Cardiac CirculationVena cava right atrium right ventricle pulmonary artery lungs pulmonary vein left atrium left ventricle aorta arteries body veins Vena cava right atrium right ventricle pulmonary artery lungs pulmonary vein left atrium left ventricle aorta arteries body veins Vena cava right atrium right ventricle pulmonary artery lungs pulmonary vein left atrium left ventricle aorta arteries body veins Vena cava right atrium right ventricle pulmonary artery lungs pulmonary vein left atrium left ventricle aorta arteries body veins Vena cava right atrium right ventricle pulmonary artery lungs pulmonary vein left atrium left ventricle aorta arteries body veins
Cardiac Circulation Animation
Summaryhttps://www.youtube.com/watch?v=DAXa4eR1s0M&feature=related0:18 – 2:05
Circulatory Song
http://www.youtube.com/watch?v=q0s-1MC1hcE&feature=related
