the circulatory system. warm up: obj/hw/wu on page 108 read the circulatory system poem answer in...
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The Circulatory System
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Warm Up:
OBJ/HW/WU on page 108
Read the Circulatory System Poem
Answer in your notebook:How is the circulatory system like a highway? Use a few examples from the poem.
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FunctionTransportation system by which
oxygen and nutrients reach the body's cells, and waste materials are carried away.
Also carries substances called hormones, which control body processes, and antibodies to fight invading germs.
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Circulatory System Works with….Digestive System
~ breaks down food and nutrients
Respiratory System
~ provides oxygen that cells need to release energy
Transports materials from the digestive system and the respiratory system to the cells
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Parts of the Circulatory System
Divided into three major parts:The Heart The Blood The Blood Vessels
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The heart, the lungs, and the bloo d vessels work together to form the the circulatory system.
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http://users.tpg.com.au/users/amcgann/body/circulatory.html
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3 Types of Circulation:
Pulmonary circulation
Coronary circulation
Systemic circulation
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Pulmonary Circulation
Movement of blood from the heart, to the lungs, and back to the
heart again
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Coronary Circulation
Movement of blood through the tissues of the heart
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Systemic Circulation
Supplies nourishment to all of the tissue located throughout the body , except for the heart
and lungs
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Blood Vessels
Hollow tubes that circulate your blood
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Three Types of Blood Vessels
Arteries
Veins
Capillaries
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ArteriesCarry blood AWAY from the heart
Heart pumps blood
Main artery called the aorta
Aorta divides and branches
Each region of your body has system of arteries supplying it with fresh, oxygen-rich blood.
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Arteries
Tough on the outside
Smooth on the inside
Muscular wall helps the heart pump blood
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http://hes.ucf.k12.pa.us/gclaypo/circdia.html
Have strong, muscular walls
The inner layer is very smooth so that the blood can flow easily
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Capillaries
Very thin
Only one cell thick
Connect arteries & veins
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Capillaries
Food and oxygen released to the body cells
Carbon dioxide and other waste products returned to the bloodstream
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http://hes.ucf.k12.pa.us/gclaypo/circdia.html
Valves are located inside the veins. The valves only allow
blood to move in one direction.
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Veins
Carry blood to the heart
Receive blood from the capillaries
Transport waste-rich/ oxygen-poor blood back to the lungs and heart
Valves are located inside the veins
Allow blood to move in one direction
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Close up of heart valveHeart sounds are made by the valves
as they open and close
http://hes.ucf.k12.pa.us/gclaypo/circdia.html
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BloodPumped by your heart.
Travels through thousands of miles of blood vessels
Carries nutrients, water, oxygen and waste products to and from your body cells.
Made up of liquids, solids and small amounts of oxygen and carbon dioxide.
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Red Blood CellsRed blood cells carry oxygen from the lungs to all the cells of the body.
Takes carbon dioxide and transports it back to the lungs
About 5,000,000 Red Blood Cells in ONE drop of blood.
Made in red bone marrow
Circulate for 120 days
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White Blood Cells
White blood cells protect the body from germs
Guard against infection, fight parasites, and attack bacteria
Number of WBC’s increases when body is fighting
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scienceu.fsu.edu www.merck.com/pubs/mmanual_home/ illus/167i2.htm
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Platelets
Platelets are blood cells that help stop bleeding
Forms a net-like structure for clotting
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PlasmaPlasma is the liquid part of the blood
About half of your blood is made of plasma
The plasma carries the blood cells throughout the body
• 10% dissolved gases, salts, nutrients, enzymes, hormones, wastes, and proteins.
90% water
Plasma is made in the liver.
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Label the Parts of the Heart
Oxygenated blood is moving AWAY from the heart (color red)
Deoxygenated blood is moving TO the heart (color blue)