NURS 3120 Lecture Notes - Lecture 6: Peripheral Vascular System, Vasodilation, Peripheral Artery Disease
Document Summary
Cardiovascular system: transports oxygen, transports nutrients, transports other substances to body"s tissues, carries metabolic waste products to kidneys and lungs. This dynamic system is able to adjust to changing demands for blood by: constricting or dilating blood vessels, altering cardiac output. Heart and great vessels: heart is a pump. Receives blood from superior and inferior venae cavae. Pumps blood through pulmonary arteries to pulmonary circulation: left side. Pumps blood through aorta into systemic circulation: pericardium and cardiac muscle. Endocardium: blood flow through the heart: the cardiac cycle. Ventricles are relaxed and fill with blood from atria. Heart is stimulated by an electric impulse that originates in sa node av. Peripheral vascular system node bundles purkinje fibers: arteries, capillaries, veins. Lymph system: collaborates with peripheral vascular system to remove blood from interstitial spaces. Chronic illnesses like dm, renal disease, copd, htn. Family history of any comorbidities: parents, grandparents, aunts & uncles.
