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Flow of the heart
- 1. vena cava6. pulmonary artery11. l. ventricle
- 2. r. atrium7. LUNGS12. aortic valve
- 3. tricuspid valve8. pulmonary vein13. aorta
- 4. r. ventricle9. l. atrium
- 5. pulmonary valve10. bicuspid (mitral) valve
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what part of the <3 is known as the pacemaker
SA Node (sinoatrial node)
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what is a sphygmomanometer and what is it used for?
- Instrument used to measure the arterial blood pressure
- blood pressure cuff
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what is vasotripsy and what is it used for?
crushing of a blood vessel to arrest hemorrhaging
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where is the brachial pulse located
just above the elbow
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what is the most common place for a MA to take a pulse?
Radial (thumb side of wrist)
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what is endoarterectomy
surgical excision of the inner portion of an artery
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understand the dif. between: veins, capillaries, arterioles, arteries
- veins: carries bld. to heart. (deoxy)
- capillaries: smallest vessels. (oxy to body)
- arterioles: smaller branches of arteries. carry bld. to capillaries.
- arteries: carries bld. away from heart (oxy)
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superior vena cava
- delivers bld. from the head, neck, upper limbs, and chest
- (deoxy)
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inferior vena cava
carries bld. returning from the rest of the trunk, organs in the abdominopelvic cavity and lower limbs (deoxy)
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understand placement of systolic and diastolic
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3 types of circulatory systems
- systemic: <3 to body
- pulmonary: <3 to lungs
- portal: between organs & lungs
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what is the name of the wall in the center of the heart?
septum
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starting from outside, name the 3 layers of the heart:
pericardium/epicardium => myocardium => endocardium
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know the valves and location
- TRICUSPID VALVE: between R. atrium & r. vent.
- PULMONARY VALVE: between R. vent & pulm. artery
- BICUSPID (MITRAL) VALVE: between L. vent & L. atrium
- AORTIC VALVE: between aorta & L. Vent.
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what is the job of valves?
entrance or exit of each ventricle and prevents bld. from returning. ONE WAY STREET FOR BLD.
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what is the main job of the circulatory system?
- transports oxygen & nutrients to the body's cells.
- transports carbon dioxide and waster materials away from the body's cells
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4 main parts of the circulatory system:
- hearts
- arterioles
- veins
- capillaries
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how big is the heart? how much does it weigh?
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what kind of condition is a lack of rhythm of the heart?
arrhythmia
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