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27 Cards in this Set

  • Front
  • Back
What is circulation?
-fluid distribution center
Whata re the 2 divisions of the circulatory system?
-cardiovascualr system
-lymphatic system
What is the cardiovascualar system?
-heart is center of system
-includes all blood vessels
Whata re arteries?
-carry blood away from heart to tissues
What are veins?
-veins carry blood to heart
What are capillaries?
-take blood through tissues
How does blood circulate through the cardiovascualar system?
-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
What does the superior vena cava do?
-bring blood to heart from thoracic area
What does the inferior vena cava do?
-bring blood to heart from lower part of the body
How does blood get to all the cells of the body?
-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
What are lymph nodes?
-filter out tissues of waste and foreign materials
What is interstitual space?
-fluid in space b/t tissues
What is lymph?
-liquid filtered in lymph node
What are lymphatic vessicles, what do they do. and where are they located?
-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
What is the heart?
-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
What is the endocaridum/ endothelium of the heart wall?
-simple squamous epithelium lines heart and all blood vessels
What is trhe myocaridium of the heart wall?
-layers of cardiac muscle
What is the epicardium of the heart wall?
-viseral serous pericardium
-pericaridal cavity
-parietal serous pericardium
What is the pericardial cavity?
-potential space with serous fluid
What is the fibrous pericardium of the heart wall?
-dense regular connective tissue that anchors heart in position
What is cardiac muscle (mycardium)?
-connected to sequential cells by disks (have jagged edges at connection,contain gap junctions)
What is the fibrous skeelton of the heart?
-dense irregular connective tissue
-anchors valves
-provides attachment for cardiac muscles
-separates chambers of heart
-provides impulse insulation
What is the coronary sinus?
-returns blood from heart walls to R atrium
What is the pulmonary trunk?
-blood exits heart to lungs
-divides into 2 pulmonary arteries
What are pulmonary veins?
-oxygenated blood returns from lungs to L ventricle
What is the Aorta?
-distributed oxygenated blood blood to body
What are the coronary arteries and veins and where are they located?
-hearts own private circulatory system
-located on surface of heart
-source of most heart attacks