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