PHAR 201 Lecture Notes - Lecture 9: Circulatory System, Arteriole, Capillary
16 Dec 2015
School
Department
Course
Professor
Document Summary
Understand the cardiovascular system: heart, circulation, blood. Left ventricle aorta arterioles capillaries (gas. Exchange, -o2 & +co2) venuoles veins inferior vena. Cava superior vena cava right atrium right. Ventricle pulmonary artery (gas exchange at lungs) . Understand the 3 hypertension: essential, isolated systolic, and. It is the most common hypertension (>80% of cases), the cause is unknown. Indicated by wide difference between systolic (>140 mmhg) & diastolic (<90 mmhg) blood pressure. Its proportion of hypertension cases goes up with age. Aldosteronism: increased aldosterone release resulting in greater na+ retention fluid volume in arteries increase. Pheochromocytoma: an an adrenal medulla tumor releases epinephrine, which causes vasoconstriction. Understand the health risks associated with hypertension. Stroke (in brains, burst of artery = hemorrhagic stroke) 73% were treated, but only 58% had their hypertension controlled. Control indicated by restoration of normal blood pressure. Understand the mechanism of actions of hypertensive drugs.
