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25 Cards in this Set
- Front
- Back
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Myogenic muscle |
Muscle that contracts without external nerve stimulation |
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Sinoatrial node |
On R.A / Originate impulses that stimulate heartbeat |
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Atrioventricular node |
Conductor / Through which impulses from S.A node are passed to ventricles |
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Purkinje fibres |
Nerve fiber that branches & carries electrical impulses throughout ventricles |
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Sympathetic nervous system |
Increase heart rate |
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Parasympathetic nervous system |
Stimulated to slow heart rate |
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Diastole |
Relaxation of ❤️ |
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Systole |
Contraction of ❤️ |
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Lubb sound |
AV valves shut |
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Lubb sound |
Closung of semi lunar valves |
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❤️ murmur |
When blood leaks past closed ❤️ valve because of an improper seal |
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Cardiac output |
Amount of blood flows from ❤️ per minute |
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Stroke volume |
Quantity pf blood pumped pumped w/ each ❤️ beat |
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Blood pressure |
Force of blood on walls of arteries |
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Sphygmomanometer |
Instrument to measure blood pressure |
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Hypertension |
Caused by increase resistance in bloof flow & increase blood pressure |
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Extrcellular fluid ECF |
Fluid that occupies space between cells & tissues |
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Capillary |
Area of high pressure |
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ECF |
Area of lower pressure |
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Filtration |
Outward flow of water & small mineral ions |
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Lymph |
Fluid found in lymph vessels that contains some proteins that leaked through capillary walls |
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Lymph node |
Mass of tissue that stoe lymphocytes & remove bacteria from lymph |
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Lymphocyte |
WBC produce antibodies |
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Spleen |
A lymphoid organ that act as resovoir for blood & filter site for lymph |
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Thymus gland |
Where t lymphocytes mature |
