Cardiovascular Flashcards
Beats 100,000 x a day
Heart
How many pumps does our heart do?
14k pumps
How many litters of blood in our body?
5-6 litters
Size of the heart
Male:
Female:
Male: 300 grams
Female: 250 grams
Between two lungs
Thoracic cavity
Inelastic and anchors heart in the place
Fibrous pericardium
Double layer around heart
Serous pericardium
Fused to fibrous pericardium
Parietal
Adheres tightly to heart
Visceral
Reduce friction
Pericardial fluid
Reduce friction
Pericardial Fluid
Pericardium ( 2 parts )
Fibrous and serous
Outer layer
Epicardium
Responsible for pumping action of the heart
Myocardium
Covers the valves of the heart
Endocardium
2 upper chambers
Left atrium
Right atrium
2 upper chambers
Left atrium
Right atrium
Inflammation of the myocardium
Myocarditis
Inflammation of endocardium
Endocarditis
Signs and symptoms of endocardium
Fever, easily fatigue
Tx
Intravenous antibiotics
Pacemaker
Sinoatrial node 100 times/min
Av node 40-60 times/min
Ventricle 20-35 min
A device that sends small electrical currents
Artificial pacemake
3 waves
P wave
QRS complex
T-wave