Term
| Functions of the Circulatory System |
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Definition
Transportation of
–nutrients and waste
–heat
–oxygen and carbon dioxide
–hormones
–antibodies |
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Term
| Structures of the Circulatory System |
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Definition
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Term
| Where is the heart located? |
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Definition
•The heart is found in the Thoracic Cavity between the lungs, slightly left of center.
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Term
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Definition
•The base is the broad flat top of the heart
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Term
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Definition
The apex is the pointy bottom of the heart
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Term
| What are the layers of the heart? |
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Definition
Three layers:
endocardium, myocardium, and pericardium
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Term
What are the four valves of the heart?
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Definition
- bicuspid / mitral
- tricuspid
- pulmonary semilunars
- aortic semilunars
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Term
| What are the chambers of the heart? |
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Definition
four chambers
–right and left atria
–right and left ventricles
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Term
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Definition
–Inside lining, covers all walls and valves
–Made of epithelial and connective tissues
–Important because of the volume of blood that flows through the heart
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Term
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Definition
–Bulk of the heart
–Made of cardiac muscle
Thickest around left ventricle |
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Term
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Definition
–Serous membrane around the heart
–Has a visceral and parietal layer |
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Term
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Definition
Receives blood from veins; pumps to right ventricle. |
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Term
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Definition
Receives blood from lungs; pumps to left ventricle.
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Term
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Definition
Pumps blood to the lungs.
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Term
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Definition
Pumps blood through the aorta to the body.
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Term
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Definition
–Between left atrium and ventricle
–Has two flaps |
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Term
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Definition
–Between right atrium and ventricle
–Has three flaps |
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Term
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Definition
| from the right ventricle leading to the lungs through the pulmonary artery |
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Term
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Definition
from the left ventricle leading to the body through the aorta
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Term
| What do coronary arteries and veins do? |
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Definition
| Coronary arteries and veins run blood to and from the myocardium. |
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Term
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Definition
The heart has it’s own electrical system that controls the rhythm of heart contractions.
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Term
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Definition
Closed system for flow of blood
Three types of vessels:
–Arteries, Capillaries, and Veins
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