The Heart as a Pump

LO: - to label the structure of the circulatory system

to explain how the heart pumps blood around the body

http://youtube.com/watch?v=N_LuJGobrpw&feature=related

http://youtube.com/watch?feature=related&v=1SBMgh7IVGg

Respiration recap1. List 2 activities where aerobic respiration occurs?2. List 2 activities where anaerobic respiration occurs?3. How do oxygen and glucose get to cells for respiration to occur?

Next time blood and circluation heart a different lesson

Circulatory System

• Blood- carry important substances around the body eg. ________, _________ to cells for __________.

• Blood vessels -tube ________ travels through• Heart- pumps or pushes blood around the

______

Blood, oxygen, respiration, glucose, body

Blood vessels• Arteries- thick walled carry

oxygenated blood away from the heart

• Capillaries – one cell thick where substances are exchanged by diffusion

• Veins- thin walled with valves, carry deoxygenated blood back to the heart

Path od red blood cell video

Plasticization- blood vessels

Circulation

• Heart is a double pump• Left side pumps

oxygenated blood to body

• Right side pumps ___________blood to the lungs

Label the capillaries on the diagram and trace with your figure the path blood takes

right atrium

Left ventricleRight ventricle

Left atrium

Pulmonary veinsVena

cava (vein)

Pulmonary arteriesaorta

Right atrioventicular valve

Left atrioventicular valve

Semi lunar valves

The blood is the bodies taxi service- blood mobile

• What does it pick up and transport around the body?

• Where does it pick these substances up and where do these get dropped off?

• What roads (blood vessels) does it travel through?

These words may help you

Destination

-lungs

-Body cells

Roads

Arteries

Capillaries

Veins Passengers

O

G

C D

W

Remember the blood must always go thru the heart on its journey

TASK: Tell the story of the blood taxi journey

Read stories

Heart

To left lung

To right lung

Oxygenated blood to the body

Deoxygenated blood from the body

Oxygenated blood from the lungs

Label your diagram of the heart

Heart has 4 chambers

2 ventricles

2 atrium

Blood enters thru the atria

Lungs

Left side of Heart

Cells

Right side of Heart

O2

KeyRBC = Red blood cells

RBC

RBC

Pushes RBC

RBC

O2

RBC

CO2

Pushes RBC

RBCCO2

RBC

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