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Cardiovascular system (The heart (Coronary circulation (LV (Aorta (L + R…
Cardiovascular system
The heart
RA - RV - LA - LV
Coronary circulation
LV
Aorta
L + R coronary artery
sections of the heart
Coronary viens
Coronary sinus
RA
Anterior coronary veins
RA
Conduction system
SA node
AV node
Bundle of His
L + R bundle branch
Purkinje fibres
Cardiac cycle
1 - Atrial systole
2 - Ventricular systole
3 - Complete cardiac diastole
Cardiac Output
CO = Heart rate x Stroke Volume
Blood
Red blood cells (RBC - Erythrocytes)
White blood cells (WBC - Leukocytes)
Neutrophils, Eosinophils,Basophils, Lymphocytes, Monocytes
Platelets (Thrombocytes)
Blood gouping
A / B / O
Rh - / Rh +
Haemostasis
1 . Vasoconstriction
Platelet plug formation
Coagulation
Fibrinolysis
Blood vessels
Arterial
Higher pressure
Thicker walls (tubular)
Blood from heart
Venous
Some veins have valves
Blood flow towards heart
Blood pressure and resistance
BP = Cardiac Ouput x Peripheral resistance
Hydrostatic + Osmotic pressure
Forces that determine overall fluid movement across capillary membrane
Hydrostatic = Blood pressure that pushes fluid out of the blood stream
Osmotic pressure = tends to pull fluid back into the blood stream because of the solutes. i.e plasma proteins (eg. albumin)