circulatory system gizmo

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why do we need blood?

prevent disease/blood loss; regulate pH/body temp/electrolytes; transport oxygen, nutrients, enzymes, hormones to rest of body; transport CO2 and other wastes away from body tissues

what organ pushes blood through your body?

heart

how many chambers does the heart have?

4

what do valves do?

keep blood from flowing backward; allow for blood to flow from atrium to ventricles

names of the chambers?

right atrium left atrium right ventricle left ventricle

which chambers contract during "lub"

left/right atrium

which chambers contract during "dub"

left/right ventricle

what order does blood flow through the four chambers?

right atrium right ventricle left atrium left ventricle

where does blood from the right ventricles go?

lungs

where does blood from the left ventricle go?

throughout the whole body

what happens to the blood in lungs?

the lungs add oxygen and remove carbon dioxide

what do arteries do?

carry blood away from the heart

what do capillaries do?

carry blood to body cells

what do veins do?

carry blood back to the heart

which type of blood vessel usually carries oxygen-rich blood?

arteries

which type of blood vessel usually carries oxygen-poor blood?

veins

in which type of blood vessel is oxygen released into body cells?

capillaries

how is the blood in pulmonary artery different from blood in other arteries?

the blood is lower in oxygen

how is the blood in the pulmonary vein different from blood in other veins?

the blood is high in oxygen

how is circulatory system similar to road and highway system?

both provide pathways to transport objects (blood/cars) to the places they need to go to

Describe the location of the heart

THORACIC CAVITY; SLIGHTLY LEFT

Describe the structure of the pericardium

PERICARDIUM IS MADE OF FIBROUS AND SEROUS AND SEROUS IS MADE OF VISCERAL AND PARIETAL FORMS CAVITY

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