Pathophysiology: Cardiovascular Disorders questions with answers 2024

Pathophysiology: Cardiovascular Disordersacute neural mechanisms - correct answer ◦Medulla and Pons (ANS) Hold vasomotor and cardiac control centers ◦Vagus nerve to heart, spinal cord ◦Reflexes - baroreceptors and chemoreceptors respond to vessel stretching and changes in 02, co2, h+ that trigger vasoconstriction examples of humoral mechanisms - correct answer ◦Renin-Angiotensin (for vasoconstriction) ----Aldosterone System (reabsorbs na+ = Increased volume of H20 and BP) ◦Vasopressin (ADH) - from posterior pituitary acts directly on vasoconstriction, responds to a drop in volume, BP, or increase in osmolality (more particles in blood) ◦Catecholamines- Norepinephrine/Epinephrine - regulate HR, Vasoconstriction, and cardiac contractility blood pressure regulation longterm - correct answer •Kidneys and Extracellular Fluid Volume oIncrease H20 and NACL oVessels constrict with increased flow oVessels dilate with decreased flow