Hemodynamics Flashcards
Aneurysm
a dilation or an out pouching of the wall of an artery or vein. Walls become thin and rupture easily
Arterial Steal
when arteries are maximally dilated due to hypoxia. These arteries steal oxygen and nutrients from cutaneous and peripheral vessels. results in pins and needles sensation
Chronic Venous Insufficiency
chronic failure of venous valves to function interfering with venous blood return to the heart. Can result in pooling in the lower limbs
Diastolic
pressure of the blood against the arterial walls when the ventricles are relaxed
Embolus
foreign object floating in the bloodstream until such as time as it becomes trapped in a vessel
Peripheral Vascular Resistance
the sum of all resistances to floe that the body has within the vascular system
Pheochromocytoma
tumor originating in the neutral crest of the sympathetic nervous system and is responsible for ~0.1-0.2% of hypertension. The tutor cells release catecholamines resulting in sympathetic stimulation and hypertensive emergencies
Primary Varicose Veins
superficial veins. Seldom involves communicating veins. Separate
Pulse Pressure
the difference between systolic and diastolic pressure readings. Ranges between 30-40mmHg
Secondary Varicose Veins
characterized by venous stasis and chronic venous insufficiency in the deep and communicating veins. Issue with one can affect all. Resulting in edema
Systolic
the pressure of the blood against the arterial walls when the ventricle of the heart are contracted
Thrombophlebitis
inflammation of the vein with. clot formation within the vein
Vasospasm
a spasm or constriction of a blood vessel
Resolution
thrombi that starts to form and does not continue to develop
Organization
phagocytic digestion of a thrombus and replacement with fibrous connective tissue. (will still result in narrowing of the vessels)
