7th Grade Circulatory System

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The primary role of the circulatory system is to .

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Some of the materials transported by the circulatory system are:

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Secondary Roles of the Circulatory System are:

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Plasma is made out of mostly and makes up % of the blood.

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The remaining % of blood includes and , which are created in the and start off as . (Do not write "formed elements" for any of the blanks)

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Stavka koja se može prevući		Odgovarajuća stavka
White Blood Cells (WBCs)		carry important molecules and enzymes throughout the bloodstream
Platelets		destroy infection causing pathogens
Red Blood Cells (RBCs)		prevent blood loss

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Drugi mogući odgovor:

White Blood Cell

Red Blood Cell

Platelet

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Arteries are the heart.

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Arterioles are the heart.

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Veins are the heart.

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Venules are the heart.

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What are capillaries?

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Capillaries are between veins and . They are where red blood cells deliver and and pick up cellular . Capillaries can be found in respiratory and eye .

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All arteries carry blood, except for the artery, which carries blood.

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All veins carry blood, except for the veins, which carry blood.

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The term refers to the lung.

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Oxygen/Carbon Dioxide gas exchange occurs in the lung's .

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Oxygen and carbon dioxide gas across the membrane.

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The .

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The .

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Blood is % water.

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Your heart beats about times each day.

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Oxygenated blood travels from the heart to the .

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Deoxygenated blood travels from the heart to the .

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Deoxygenated blood is low in oxygen, causing it to turn blue.

Tačno

Netačno

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Red blood cells are also called .

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Red Blood cells have a double nucleus.

Tačno

Netačno

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Red Blood transport oxygen AND carbon dioxide.

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Netačno

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Where is hemoglobin found and what does it help to do?

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Each molecule of hemoglobin can carry molecules of oxygen.

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The of anemia is low blood cell count.

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helps bind oxygen to your blood.

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is a type of anemia where the red blood cell is crescent shaped.

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is another name for white blood cells.

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The 5 different types of are monocytes, eosinophils, lymphocytes and neutrophils.

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When your body is fighting an infection, the number of leukocytes in your blood significantly increases.

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Netačno

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Platelets can form to stop .

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A blood clot is made up of platelets and proteins such as .

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is a disorder of the where clots do not form properly and a person can easily bleed to death.

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prevent blood loss by forming a clot or where the blood vessel breaks.

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When too much fat and cholesterol builds up in the artery, a can occur, which can lead to a or .

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Using complete sentences in your own words, describe what causes a stroke.

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Using complete sentences in your own words, describe what causes a heart attack.

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Heart valves keep blood flowing in one direction.

Tačno

Netačno

7th Grade Circulatory System

What are capillaries?

Deoxygenated blood is low in oxygen, causing it to turn blue.

Red Blood cells have a double nucleus.

Red Blood transport oxygen AND carbon dioxide.

Where is hemoglobin found and what does it help to do?

When your body is fighting an infection, the number of leukocytes in your blood significantly increases.

Using complete sentences in your own words, describe what causes a stroke.

Using complete sentences in your own words, describe what causes a heart attack.

Heart valves keep blood flowing in one direction.

What are capillaries?

Deoxygenated blood is low in oxygen, causing it to turn blue.

Oxygenated blood is high in oxygen, causing it to turn bright red.

Red Blood cells have a double nucleus.

Red Blood transport oxygen AND carbon dioxide.

Where is hemoglobin found and what does it help to do?

When your body is fighting an infection, the number of leukocytes in your blood significantly increases.

Using complete sentences in your own words, describe what causes a stroke.

Using complete sentences in your own words, describe what causes a heart attack.

Heart valves keep blood flowing in one direction.

Oxygenated blood is high in oxygen, causing it to turn bright red.