Diffusion of gasses - Study guides, Class notes & Summaries

MKSAP Pulmonary Medicine Questions And Answers 100% Correct Review 2023 When should one consider COPD? - ANS-chronic cough dyspnea sputum production Hx risk factors: smoking, alpha-1antitrypsin def., and workplace exposure to gasses and fumes How is COPD dx'd? - ANS-spirometry after appropriate tx w/bronchodilator (salbutamol) How does one dx COPD by spirometry and assess the severity of COPD? - ANS-Postbronchodilator FEV1/FVC for dx Postbronchodilator FEV1 for severity What values ...

Define gas exchange The process by which oxygen is transported to cells and carbon dioxide is transported by cells Hypoxemia reduced oxygenation of arterial blood Hypoxia state at which O2 reaching cells is insufficient Anoxia total lack of oxygen in tissues Ischemia Insufficient O2 blood to tissues Physiologic process of gas exchange Atmosphere (21% O2) →chemoreceptors in medulla sense CO2 levels → transmit to diaphragm and intercostals to contract to breathe deep → nose (warms & hum...

Praxis 5005 – Science Latest Update with Certified Solutions Thick Layer surrounding Earth's outer core made of a thick, solid, rocky substance that represents about 85% of the total weight and mass of the Earth Mantle The most inside layer of the Earth, composed of iron Inner Core Closet to the Inner Core, liquid composed of a nickel-iron alloy Outer Core The most outside layer of the Earth, composed of a great variety of igneous, metamorphic, and sedimentary rocks Crust The two gasses ...

DRGs (diagnosis-related groups) - refers to reimbursement for health care services based on a predetermined fixed price-per-case or diagnosis; it categorizes patients to better control hospital costs; there is a time-table for how long someone with a DRG can be in the hospital on government funds, which is a barrier to proper healthcare. gastric secretion pH (checking NG tube) - less than 5.5 Hyponatremia - Stupor/coma Apprehension, headache confusion, depression convulsion, n/v Lethargy ...

RESPIRATORY SYSTEM DPT 712 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED Ventilation mechanical process of moving air in and out of lungs Gas Exchange blood and air/tissues that occurs in alveoli Gas Delivery to tissues via blood flow Oxygen Utilization by tissues that synthesize ATP (cellular respiration) Return of Gasses from tissue to lung (CO2 and O2) Exhalation component of ventilation External Respiration ventilation + gas exchange Internal Respiration O2 util...

GEG 111 Exam 1 Harper College Questions With Verified Answers. What is Geography - answerThe study of Earth's features (land, water, air), inhabitants (living things) and their spatial (locational) relationships and interactions. Textbook: the science that studies the relationships among natural systems, geographic areas, and human society and culture, and the interdependence of all of these. 5 traditional themes of Geographic Study - answer1) Location: Absolute or relative position on ...

DPT-772: PULMONARY A+P LECTURE EXAM QUESTIONS AND ANSWERS WITH COMPLETE VERIFIED 2024/2025 Ventilation movement of air within the lungs Inspiration air enters lungs Exhalation or Expiration air exits lungs Respiration diffusion of gasses across cellular membranes External Respiration occurs at alveolar level Internal Respiration occurs in all cells of body Air initially moves into the upper airways from the nares of the mouth into pharynx to the larynx to the trachea to the mains...

what makes alveoli the ideal blood-gas interface - ANSWER--surface area, lots of alveoli -think, 1 cell thick -makes good for diffusion -they also have surfactant How do respiratory gasses (O2, CO2) move in the body? Why is this system so effective? - ANSWER--in the blood, gets there by pressure gradients, doesn't require energy what does the oxygen dissociation curve describe - ANSWER-percent oxygen saturation in arteries (carrying oxygen to tissues) what is the a-v oxygen difference...

What is the difference between blood and hemolymph? - Blood: In a Closed circulatory system and is confined to vessels. Hemolymph (AKA interstitial fluid): In an Open circulatory system and bathes the body cells. What are the major types of blood cells? - red and white cells What adaptations allow an animal to use diffusion across its skin as the only mechanism for gas exchange? - The animal must be thin and have a large surface area. Animals that only diffuse across the skin have a dense ...

When should one consider COPD? - chronic cough dyspnea sputum production Hx risk factors: smoking, alpha-1antitrypsin def., and workplace exposure to gasses and fumes How is COPD dx'd? - spirometry after appropriate tx w/bronchodilator (salbutamol) How does one dx COPD by spirometry and assess the severity of COPD? - Postbronchodilator FEV1/FVC for dx Postbronchodilator FEV1 for severity What values of FEV1/FVC and FEV1 dx COPD? - FEV1 < 80% of predicted FEV1/FVC < .70 The...