What is elastic recoil - Study guides, Class notes & Summaries

What cells are found in the dermis? correct answers Macrophages, Mast Cells, Fibroblasts, Nerves, Langerhans What are the function of the proteins collagen and elastin? correct answers Providing the skin with tensile strength and elastic recoil? What lab test measures the percentage of blood made up of red blood cells? correct answers Hematocrit What protein is produced by stem cells that give red blood cells the red color and give them the ability to transport oxygen? correct answers H...

NR601 Midterm Questions and Answers Already Passed What are the 3 primary physiological changes of aging? 1. Reduced physiological reserve of most body systems, esp. cardiac, resp, renal. 2. Reduced homeostatic mechanisms that fail to adjust regulatory systems (i.e. temp control, fluid/lyte balance, etc.). 3. Impaired immunological function (infection risk is greater, autoimmune dz's more prevalent) What is the preferred amount of exercise for elderly? 30min/day 5 days/wk of moderate exercis...

A&P 2 University Of Memphis -[A&P II] Exam #2 -- Practice Test fully solved 1) Which of the following is false regarding blood vessels? a. They are dynamic structures. b. Part of the cardiovascular system. c. Capillaries are the site of gas and nutrient exchange. d. Arteries carry blood away from the heart. e. All of the above are true. - correct answer e. All of the above are true. 2) Which statement(s) is/are true regarding the 3 layers that make blood vessels? a. The tunica media i...

Biology 235 Final Exam Questions With 100% Correct Answers 2024/2025 What is afterload with regards to artery anatomy? Elastic arteries - stretch and recoil during pressure pulses Amount of elasticity determines force of afterload How do arterioles affect afterload? Provide vascular resistance and regulate regional blood flow via sympathetic vasomotor tone and pre-capillary sphincters What 4 mechanisms regulate blood pressure in the body? Baroreflex Chemoreceptor reflex Choliner...

NR509 Final Questions & Answers A young man feels something in his scrotum and comes to you for clarification. On your examination, you note what feels like a "bag of worms" in the left scrotum, superior to the testicles. Which of the following is most likely? A) Hydrocele of the spermatic cord B) Varicocele C) Testicular carcinoma D) A normal vas deferens Which of the following changes are expected in vision as part of the normal aging process? A) Cataracts B) Glaucoma C) Macula...

Biology 235 - Exam 3 Prep Questions With Verified Answers Resistance opposition to blood flow from friction What is hypertrophy? increase in muscle size How does hypertrophy occur? increase in the number of actin and myosin filaments satellite cells protect neuron cell bodies Blood Flow Resistance the opposition to blood flow through a vessel Blood Flow Resistance Factors Blood Viscosity Vessel Length Vessel Radius Flow rate of blood F = (pressure gradient / resistance) or F =...

[A&P II] Exam #2 -- Practice Test Chamberlain College Nursing Question and answers already passed [A&P II] Exam #2 -- Practice Test 1) Which of the following is false regarding blood vessels? a. They are dynamic structures. b. Part of the cardiovascular system. c. Capillaries are the site of gas and nutrient exchange. d. Arteries carry blood away from the heart. e. All of the above are true. - correct answer e. All of the above are true. 2) Which statement(s) is/are true regarding...

What is dyspnea? ~~> difficulty breathing (SOB, labored breathing, "air hunger") What are some causes of dyspnea? ~~> asthma, COPD, interstitial lung disease, heart failure, pneumonia, psychiatric problems, choking, airway obstruction What is clubbing? ~~> tips of fingernails enlarge, the nail curves around What causes clubbing? ~~> low oxygen levels in the body Is clubbing chronic or acute? ~~> results from chronic low oxygen levels, over a number of years Does...

NR 509 Final Exam Questions with Answers and Rationale 2022/2023 A young man feels something in his scrotum and comes to you for clarification. On your examination, you note what feels like a "bag of worms" in the left scrotum, superior to the testicles. Which of the following is most likely? A) Hydrocele of the spermatic cord B) Varicocele C) Testicular carcinoma D) A normal vas deferens Varicocle Varicoceles are common in normal men. They are often found in the left scrotum or bilate...

Biology 235 - Exam 3 Prep Questions With Verified Answers Resistance opposition to blood flow from friction What is hypertrophy? increase in muscle size How does hypertrophy occur? increase in the number of actin and myosin filaments satellite cells protect neuron cell bodies Blood Flow Resistance the opposition to blood flow through a vessel Blood Flow Resistance Factors Blood Viscosity Vessel Length Vessel Radius Flow rate of blood F = (pressure gradient / resistance) or F =...