WKU Pathophysiology Exam Study Guide| Questions with 100% Correct Answers
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Course
WKU Pathophysiology
Institution
WKU Pathophysiology
Skin changes with aging - ANSWER You will have to select me on the exam:
Decrease in sensations (pain, vibration, cold, heat, pressure, touch)
loss of elasticity, moisture
skin thin pale and translucent
lentigos (large pigmented spots, sun exposed area)
Dry skin
Thinning of layers decreases b...
WKU Pathophysiology Exam Study Guide| Questions with 100% Correct Answers Skin changes with aging - ANSWER You will have to select me on the exam: Decrease in sensations (pain, vibration, cold, heat, pre ssure, touch) loss of elasticity, moisture skin thin pale and translucent lentigos (large pigmented spots, sun exposed area) Dry skin Thinning of layers decreases body temp. Change in drug absorption decreased sweat prod. -- alters body temp wound healing increases in time Conductivity - ANSWER the ability of cells to conduct electrical impulses. Contact dermatitis - ANSWER acute inflammatory reaction trigged by direct exposure to irritant/allergen -producing substance comes from chemicals, metals, adhesives, cosmetics, and plants Excitability - ANSWER the ability of the cells to respond to electrical impulses. Contact dermatitis - ANSWER a delayed reaction 24 -48 hrs. that triggers inflammatory process that is type 4 cell -mediated hyper sensitivity!! cm: pruritus, erythema, edema at site Automaticity - ANSWER process where cardiac cells are able to generate an impulse to contract even with no external nerve stimulus with Atopic Dermatitis (Eczema) - ANSWER Chronic inflammatory skin condition, inherited tendency and common in infants but resolves by adulthood hypersensitivity because immunoglobulin E) Sinoatrial Node (SA) - ANSWER normal conduction pathway, located high in the right atrium. travel through the right and left atria , resulting in atrial contraction. automatically generates impulses ranging from 60 -100 BPM. (sinus rhythm) Atopic Dermatitis (Eczema) - ANSWER identify the skin condition: red to brownish gray colored skin patches, pruritus and more severe at night lichenified (thickened), scaly skin, cracked, irritated and sensitive skin from scratching Atrioventricular Node (AV) - ANSWER located in the right atrium adjacent to the septum. does not usually initiate impulses unless SA Node begins to fail. 40 -60 BPM . delayed impulses to allow for complete ventricular filling. Urticaria (hives) - ANSWER raised erythematous skin lesions (welts) type 1 hypersensitivity reaction that can progress to anaphylactic shock that is triggered by food or medicine Bundle of His, Bundle Branches, Purkinje fibers - ANSWER after impulse goes through AV Node, impulses more in rapid succession through ___________, __________, & __________ which stimulates ventricular contraction. if impulses fail to fire from SA or AV Node, v entricles will attempt to pace themselves. 20 -40 BPM, might not result in adequate cardiac output due to ventricles contracting before proper filling. Urticaria (hives) - ANSWER Occurs when histamine release in initiated by substances or conditions welts grow large, spread and fuse together, turn white when pressure applied
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