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 |
circulatory system gizmo
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