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29 Cards in this Set
- Front
- Back
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What are 3 types of blood vessels? |
Veins Arteries Capillaries |
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What do arteries do? |
Carry blood away from heart. |
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What do veins do? |
Carry blood to heart |
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What do capillaries do? |
Exchange materials between blood and tissues |
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What is the pointed tip at the bottom called? |
Apex |
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What is the top of the heart called? |
Base |
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Where does the heart sit? |
Between two pleural cavities in the MEDIASTINUM |
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What divides the atria and ventricles? |
Coronary sulcus |
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What separates the left and right ventricles? |
Anterior/Posterior interventricular sulcus |
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How many layers to the heart? |
3 |
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What are the 3 layers of the heart? |
Epicardium (outer) Myocardium (middle) Endocardium (inner) |
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What is the arrow pointing at? |
Intercalated disc |
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Characteristics of cardiac muscle cells? (4) |
Small Single, central nucleus Branching Intercalated discs |
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What are the 4 chambers of the heart? |
Right atrium Right ventricle Left atrium Left ventricle |
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What does the right atrium do |
Collects blood from systemic circuit |
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What does right ventricle do? |
Pumps blood to pulmonary circuit |
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What does left atrium do? |
Collects blood from pulmonary circuit |
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What does the left ventricle do? |
Pumps blood to systemic circuit |
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What part of the heart seals of at birth? |
Foramen ovale |
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What connects the atriums to ventricles? |
Atrioventricular valves (AV) |
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In the right atrium, what receives blood from head, neck, upper limbs, and chest? |
Superior vena cava |
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In the right atrium, what receives blood from trunk, viscera, and lower limbs? |
Inferior vena cava |
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Where do cardiac veins return blood to? |
Coronary sinus |
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What is the difference from the left and right ventricle? |
Left ventricle is larger Thicker muscle (more powerful) |
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What supplies blood to the heart? Supplies to muscle tissue of heart? |
Coronary circulation (arteries and veins) |
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Two main branches of the left coronary artery? |
Circumflex artery Anterior inter ventricular artery |
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Risk factor to coronary heart disease |
Smoking High BP High cholesterol Obesity Stress |
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Treatments to coronary heart disease |
Drugs, surgery |
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What causes heart attacks. |
Coronary circulation blockage |
