Heart & Peripheral Vascular Flashcards
Cardiovascular consist of
Heart (muscular pump)
Blood vessels (tubes = arteries and veins)
Precordium
Area on anterior chest overlaying the mediastinum (heart & great vessels)
Heart => base? Apex?
Base: on top of the heart
Apex narrow bottom portion of the heart/point of heart
Position of heart?
2nd ICS- 5th ICS
Right sternal border to the left midclavicular line
Right side (heart) = Anterior
Left side (heart) = posterior
Right ventricles = behind sternum & anterior cardiac surface
Left ventricles (pump blood out) = posterior & at apex of heart
Layers of heart 3
Pericardium (sac filled with fluid)
Epicardium
Myocardium
Endocardium
Pericardium
Tough fibrous double wall sac, filled with pericardial fluid that decreases friction
Epicardium
Outermost layer of heart and innermost layer pericardium
Myocardium
Muscular wall, responsible for pumping
Endocardium
This layer of epithelial tissue that lines inner surface of heart & forms valves
Cardiac tamponade
Fluid build up = pericardial sac become inflamed & squeeze the heart & hear a granting rub
Med emergency, shock
Pericarditis
Inflammation of the pericardium (layer around heart & sac membrane)
Hear a rub as symptom
Endocarditis
Infection of the inner lining
Risk Factor = infection in blood (septicemia), use of contaminated needle, IV drug abuse, oral hygiene, artificial devices
Septum
Impermeable wall that separate the right & left sides of heart
Blood flow = Heat?
RA => Tricuspid valve => RV => Pulmonic valve => Lungs
LA => Mitral valve => LV => Aortic valve => aorta => body
Anatomy of pumps => Right vs Left
Right => pulmonary circulation
Left => systemic circulation
Importance of Valves
Keep the blood going in one direction = prevent back flow
When the valves become damaged = back flow
Associated to turbulence & called murmur cuz it can damage the heart & cardio system
Epitrochlear node location?
Elbow
What does Lymphatic do? /purpose
Lymph nodes => filter fluids (fluids & plasma protein =leak out) before returning to the blood stream
Part of the immune system function