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32 Cards in this Set
- Front
- Back
What are the two parts of the Circulatory system? |
Pulmonary, Systemic |
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Features of cardiac muscle |
cardiocytes, striated, intercalated discs, involuntary |
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Three parts of the Pericardium |
Pericardial sac=parietal pericardium-tough outer layer Visceral pericardium=epicardium-inner thin serous layer Pericardial cavity-contains pericardial fluid Epicardium=visceral pericardium |
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Heart Wall Layers |
EPICARDIUM=Visceral pericardium-outer simple squamous epith/connective tissue MYOCARDIUM-middle thickest layer, muscle spirals, forceful contraction ENDOCARDIUM-inner lining of the heart chambers, simple squamous, covers valves; continuous with blood vessel lining |
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Mediastinum |
space in which the heart lies |
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What are the three vessels that empty into the right atrium? |
Superior Vena Cava Inferior Vena Cava Coronary sinus |
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What is systole? |
When the heart contracts |
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What is diastole? |
When the heart relaxes |
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What artery do you use to take a blood pressure? |
Brachial |
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What ventricle is the largest? |
Left |
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Where are the chordae tendinae found? What do they prevent? |
ventricles, regurge of blood into the atrium |
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What is the purpose of the papillary muscles? |
to anchor the chordae tendinae |
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Where does incoming deoxygenated blood return to? |
Right Atrium |
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What vessels supply blood to the heart? |
Coronary Arteries |
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The right coronary artery supplies blood to what portion of the heart? and where is it located? |
Blood supply to the SA and AV nodes; posterior |
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How does the Left Coronary artery provide blood to the heart? Where is it located on the heart? |
It splits into two branches; supplies blood to the left ventricle; anterior |
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What is anastomoses? |
When one vessel is blocked it has the ability to redirect |
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What do the Coronary Sinus' do?
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Bring de oxygenated blood from the heart to the Right Atrium |
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What are the three layers of vessel walls? |
Tunica externa Tunica media Tunica interna |
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What layer of the vessel would plaque form? |
Tunica media |
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vaso vasorum |
tiny blood vessels that com from the lumen to carry blood to and from walls of vessels. |
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What is the endothelium? |
Layer next to the lumen |
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What layer of the vessel is the vasa vasorum located?
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Tunica externa |
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What layer of the vessel would you find smooth muscle? |
Tunica media |
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What is the junction called where the aorta punctures the diaphragm? |
aortic hiatus |
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What is a capillary bed? |
network of capillaries |
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What happens before final venous drainage? |
blood from one capillary bed travels via vein to another capillary bed. (two capillary beds lie between arterial supply and venous drainage) |
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What vessels lie within the carotid sheath? |
Interior jugular common carotid vagus nerve |
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Most lateral superficial vein in the arm? |
cephalic |
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Most proximal superficial vein in the arm? |
basilic |
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Most common place for blood draw? |
median cubital (anticubital fossa) |
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pectinate muscles are found where? |
Atrium |