Haemodynamics Flashcards
(18 cards)
Haemorrhage
Process of bleeding
Thrombosis
Process of clotting
Fibrinolysis
Process of clot dissolution
Thrombosis (process)
Blood clot formed within the blood vessel, remains attached to vessel wall - reducing blood flow through the vessel
Embolism
Occurs when a blood clot / foreign object / other bodily substances becomes stuck in a blood vessel - largely obstructing blood flow
Infarction
Obstruction of blood supply to an organ or region of tissues (usually due to a thrombus/ embolus) , causing local tissue death (necrosis)
Aneurysm
A bulge in a blood vessel, usually due to a weakness in the blood vessel wall
Petechiae haemorrhage
Minute haemorrhage of skin & mucosa (often due to thrombocytopenia / clotting factor deficiency or increased pressure in the capillaries)
Purpura haemorrhage
Small haemorrhage (often due to trauma or vasculitis)
Bruises
Subcutaneous haemotoma , change in colour due to metabolism of haemoglobin -> bilirubin & hemosiderin
Hydrothorax oedema
Oedema in the thoracic activity
Hydropericardium oedema
Oedema in the pericardial activity
Hydroperitoneum oedema
Oedema in the peritoneum
Hypoxia
Deficiency in the amount of oxygen reaching the tissues (can be generalised - affects whole body or localised - affects a region)
Ischaemia
Inadequate blood supply to an organ / part of the body , causing an oxygen & glucose shortage needed for cellular metabolism - can be caused by embolism / thrombosis of an atherosclerosis artery or trauma
Septic shock
Lack of blood flow (systemic hypoperfusion) leading to reduced delivery of oxygen & nutrients
True aneurysm
Involves all three layers of an artery
False aneurysm / pseudoaneurysm
Collection of blood leaking out of an artery/ vein , but is confined to the next vessel by surrounding tissue
