Gas Exchange and Transport

Slides:



Advertisements
Similar presentations
Gas Transport in the Blood
Advertisements

Gas Exchange and Transport
Lecture – 6 Dr. Zahoor Ali Shaikh
Blood Flow and the Control of Blood Pressure
Integrative Physiology II: Fluid and Electrolyte Balance
Lectures on respiratory physiology
Transport of gases. Mechanism of gas transport Primary function is to obtain oxygen for use by body's cells & eliminate carbon dioxide that cells produce.
Oxygen and Carbon Dioxide transport in the blood
Exchange of Gases in the Lungs Exchange of Gases in the Lungs Week 3 Dr. Walid Daoud A. Professor.
Blood Gas Transport Dr Taha Sadig Ahmed Physiology Dept College of Medicine King Saud University Riyadh.
Dr Archna Ghildiyal Associate Professor Department of Physiology KGMU Respiratory System.
Figure 49.2 The Double Bind of Water Breathers. Figure 49.3 Gas Exchange Systems.
Circulatory system, respiratory system and Aquatic systems
Mechanics of Breathing
Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings. RESPIRATORY SYSTEM: EXCHANGE OF GASES CHAPTER 10 RESPIRATORY SYSTEM: EXCHANGE.
The Respiratory System: Gas Exchange and Regulation of Breathing
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Dee Unglaub Silverthorn, Ph.D. H UMAN P HYSIOLOGY PowerPoint ® Lecture Slide.
Gas Exchange and Transport
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Fundamentals of Anatomy & Physiology SIXTH EDITION Frederic H. Martini PowerPoint.
Presentation title slide
While we can voluntarily hold our breath or breath faster and deeper, most of the time autonomic mechanisms regulate our breathing. This ensures that the.
Chapter 6 The Respiratory System and Its Regulation.
Respiratory System Gas Transport.
Respiratory Partial Pressure Primary determinant of diffusion and direction Describes the pressure of a particular gas within a mixture Equals the total.
Gas Exchange and Transport
Chapter 6 The Respiratory System and Its Regulation.
The Respiratory System
Pulmonary Function During Exercise Chapter 10. The Respiratory System Provides gas exchange between the environment and the body Regulates of acid-base.
Chapter 22 Respiratory System Lecture 8 Part 2: O2 and CO2 Transport
Carbon Dioxide Transport
Gas Exchange Week 4. Daltons Law The partial pressures of the 4 gases add up to 760mm Hg. Dalton’s Law; in a mixture if gases, the total pressure.
Gas exchange internal and external respiration.
Lecture – 5 Dr. Zahoor Ali Shaikh
Lecture – 5 Dr. Zahoor Ali Shaikh 1.  Gas Exchange takes place in alveoli and then at tissue level.  Why we are breathing?  To provide a continuous.
Mechanics of Breathing
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Dee Unglaub Silverthorn, Ph.D. H UMAN P HYSIOLOGY PowerPoint ® Lecture Slide.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Dee Unglaub Silverthorn, Ph.D. H UMAN P HYSIOLOGY PowerPoint ® Lecture Slide.
BIO 265 – Human A&P Chapter 22 Respiratory System.
Human Anatomy and Physiology Respiration: Gas exchange.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Dee Unglaub Silverthorn, Ph.D. H UMAN P HYSIOLOGY PowerPoint ® Lecture Slide.
3/30 Warm Up 1.Where in the respiratory system does gas exchange take place? 2.What is Pulmonary Ventilation? 3.What are the 4 “events of respiration”?
Gas Exchange and Transport
About this Chapter Diffusion and solubility of gases
CARDIOVASCULAR SYSTEM Gas Exchange Group 6. GAS EXCHANGE Gas exchange occurs in the lungs in the alveoli The alveoli are tiny sacs in the lungs that are.
RESPIRATORY SYSTEM: EXCHANGE OF GASES
Internal Respiration Internal respiration is the diffusion of O 2 from systemic capillaries into tissues and CO 2 from tissue fluid.
Copyright © 2009 Pearson Education, Inc., publishing as Benjamin Cummings Simple Review.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Dee Unglaub Silverthorn, Ph.D. H UMAN P HYSIOLOGY PowerPoint ® Lecture Slide.
Ventilation - moves air to and from alveoli. Functions of Respiratory System Surface area for gas exchange between air and circulating blood. Helps regulate.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Dee Unglaub Silverthorn, Ph.D. H UMAN P HYSIOLOGY PowerPoint ® Lecture Slide.
RESPIRATORY SYSTEM LECTURE-5 (GAS EXCHANGE) Dr. Mohammed Sharique Ahmed Quadri Assistant Prof. physiology Al maarefa college 1.
Transport of gases in the blood.   Gas exchange between the alveolar air and the blood in pulmonary capillaries results in an increased oxygen concentration.
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings Concept 42.7: Respiratory pigments bind and transport gases The metabolic demands.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Dee Unglaub Silverthorn, Ph.D. H UMAN P HYSIOLOGY PowerPoint ® Lecture Slide.
Gas Exchange Regulation of Respiration Dr.Khaled Helmy.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Dee Unglaub Silverthorn, Ph.D. H UMAN P HYSIOLOGY PowerPoint ® Lecture Slide.
Gas Exchange and Pulmonary Circulation. Gas Pressure Gas pressure is caused by the molecules colliding with the surface. In the lungs, the gas molecules.
Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Dee Unglaub Silverthorn, Ph.D. H UMAN P HYSIOLOGY PowerPoint ® Lecture Slide.
Respiratory Systems.
A Partnership The respiratory system and the cardiovascular system work together. Neither one can function without the other. Effective action of each.
Principles of Anatomy and Physiology
A Partnership The respiratory system and the cardiovascular system work together. Neither one can function without the other. Effective action of each.
RESPIRATORY SYSTEM EXCHANGE OF GASES
The Respiratory System and Its Regulation
Chapter 22 – The Respiratory System
RESPIRATORY SYSTEM: EXCHANGE OF GASES
RESPIRATORY SYSTEM: EXCHANGE OF GASES
RESPIRATION Internal vs. external.
Chapter 13 The Respiratory System
Presentation transcript:

Gas Exchange and Transport Chapter 18, part A Gas Exchange and Transport

About this Chapter Getting CO2 & O2 dissolved for transport How oxygen is transported, role of hemoglobin How carbon dioxide is transported Regulators that sense and coordinate respiration with circulation for gas transport

Overview of Respiratory Exchange Figure 18-1: Overview of oxygen and exchange and Transport CO2

Figure 18-2: Gases in solution Solubility of Gasses Pressure gradient: lower at high altitudes Temperature: constant in warm blooded humans Solubility (solute & solvent): O2 or CO2 in water Figure 18-2: Gases in solution

Gas Exchange in the Lungs and Tissues: Oxygen Diffusion through alveolar thin cells Down diffusion gradient Higher in alveoli Lower in blood Diffusion from blood Also down gradient To ECF To tissue cells (convert O2 to CO2) PLAY Animation: Respiratory System: Gas Exchange

Gas Exchange in the Lungs and Tissues: Oxygen Figure 18-3a: Gas exchange at the alveoli and cells

Gas Exchange in the Lungs and Tissues: Carbon Dioxide Diffusion out of cells (down diffusion gradient) Into blood Buffer role Conversions: Plasma Bicarbonate On Hb Into alveolus & expiration

Gas Exchange in the Lungs and Tissues: Carbon Dioxide Figure 18-3b: Gas exchange at the alveoli and cells

Alveolar Exchange and Diseases Related to Exchange Wet surface Thin epithelia Little ECF Diseases: Emphysema Fibrotic Lung Pulmonary edema Asthma

Alveolar Exchange and Diseases Related to Exchange Figure 18-5: Oxygen diffuses across the alveolar and endothelial cells to enter the plasma

Overview of Hemostasis: Clot Formation & Vessel Repair Figure 18-4: Pulmonary pathologies that affect alveolarventilation and gas exchange

Gas Transport in the Blood: Oxygen 2% in plasma 98% in hemoglobin (Hb) Blood holds O2 reserve Figure 18-6: Summary of oxygen transport in the blood

Gas Transport in the Blood: Oxygen Figure 18-7 : The role of hemoglobin in oxygen transport PLAY Animation: Respiratory System: Gas Transport

Hemoglobin Transport of Oxygen: Disassociation Curve 4 binding sites per Hb molecule 98% saturated in alveolar arteries Resting cell PO2 = 40 mmHg Working cell PO2 = 20 mmHg More unloaded with more need 75% in reserve at normal activity

Hemoglobin Transport of Oxygen: Disassociation Curve Figure 18-8: Oxygen-hemoglobin dissociation curve

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com Inc. All rights reserved.