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27 Cards in this Set
- Front
- Back
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What is circulation?
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-fluid distribution center
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Whata re the 2 divisions of the circulatory system?
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-cardiovascualr system
-lymphatic system |
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What is the cardiovascualar system?
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-heart is center of system
-includes all blood vessels |
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Whata re arteries?
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-carry blood away from heart to tissues
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What are veins?
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-veins carry blood to heart
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What are capillaries?
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-take blood through tissues
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How does blood circulate through the cardiovascualar system?
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-blood from body veins to R atrium->R ventricle
-R venticle->lungs -blood picks up oxygen -lungs ->L atrium->L ventricle->out to body - body back to R atrium |
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What does the superior vena cava do?
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-bring blood to heart from thoracic area
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What does the inferior vena cava do?
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-bring blood to heart from lower part of the body
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How does blood get to all the cells of the body?
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-if cell had a direct blood supply, it is usally 2-4 cell layers from a capillary
-only 90% of plasma that leaves capillaries, directly returns with waste |
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What are lymph nodes?
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-filter out tissues of waste and foreign materials
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What is interstitual space?
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-fluid in space b/t tissues
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What is lymph?
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-liquid filtered in lymph node
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What are lymphatic vessicles, what do they do. and where are they located?
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-drainage network
-collect additional 10% that does not return -brings extra interstitual fluid back to ehart throuhg subclavian vessels -major contributer in the serverity of breast cancer -found near all arteries and veins |
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What is the heart?
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-averages 75 bpm
-averages 5.25 L/min of circulation of blood -bottom point is called the apex -base of heart is the L atrium |
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What is the endocaridum/ endothelium of the heart wall?
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-simple squamous epithelium lines heart and all blood vessels
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What is trhe myocaridium of the heart wall?
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-layers of cardiac muscle
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What is the epicardium of the heart wall?
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-viseral serous pericardium
-pericaridal cavity -parietal serous pericardium |
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What is the pericardial cavity?
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-potential space with serous fluid
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What is the fibrous pericardium of the heart wall?
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-dense regular connective tissue that anchors heart in position
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What is cardiac muscle (mycardium)?
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-striated
-non-mitotic -short -y-shaped -connected to sequential cells by disks (have jagged edges at connection,contain gap junctions) |
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What is the fibrous skeelton of the heart?
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-dense irregular connective tissue
-anchors valves -provides attachment for cardiac muscles -separates chambers of heart -provides impulse insulation |
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What is the coronary sinus?
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-returns blood from heart walls to R atrium
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What is the pulmonary trunk?
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-blood exits heart to lungs
-divides into 2 pulmonary arteries |
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What are pulmonary veins?
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-oxygenated blood returns from lungs to L ventricle
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What is the Aorta?
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-distributed oxygenated blood blood to body
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What are the coronary arteries and veins and where are they located?
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-hearts own private circulatory system
-located on surface of heart -source of most heart attacks |
