One of the great exchange systems in the body

Slides:



Advertisements
Similar presentations
Gas Exchange IB Biology
Advertisements

Biology The development of internal gas exchange surfaces in larger organisms to maintain adequate rates of exchange. Mammals (alveoli, bronchioles, bronchi,
IB objective 6.4 Pgs Campbell
Respiration Metabolism. Respiration What is unique about blood in pulmonary arteries compared with blood in other arteries? a) Blood in pulmonary arteries.
Respiration. How does respiration take place? There are two respiratory movements: Inspiration (inhalation) Expiration (exhalation) When you inhale, air.
Gas Exchange.
Topic 6.4 – Gas Exchange.
Gas Exchange in Mammals Aim – to understand the structure and function of the lungs. Objectives- by the end of this lesson you should be able to Name and.
1 Respiratory system. 2 What are we going to learn ? Function of the respiratory system Main parts of the respiratory system Exchange of gases in the.
6.4 Gas Exchange The lungs are actively ventilated to ensure that gas exchange can occur passively.
Gas Exchange By: Jose Posada & Andrés González. Distinguish between ventilation, gas exchange and cell respiration Ventilation : Is the process of inhaling.
Gas Exchange (Core).
Gas Exchange and Breathing Characteristics of a Gas Exchange Surface Structure and Functioning of the Gas Exchange System.
Learning objectives: 1.Must say what the job of the lungs is and name the main parts 2.Should describe the special features the lungs have to do their.
Gas Exchange Ana Zarate
The Respiratory System
Learning Objectives  Explain, with the use of diagrams, the process of breathing  Examine Respiratory Tissue slides under the microscope and Identify.
Topic 6 Continued: 6.4 Respiratory System
Respiratory System.
Gas Exchange IB objective 6.4 Pgs Campbell.
Gas Exchange (Core) Distinguish between ventilation, gas exchange and cell respiration.
6.4 GAS EXCHANGE. Ventilation Gas Exchange Cell Respiration ATP energy + 6CO 2 + 6H 2 0  C 6 H 12 O 6 + 6O 2 Air O 2 diffuses into alveolus CO 2 diffuses.
6.4 Gas exchange The as exchange is passive, as oxygen and carbon dioxide move from areas of high concentration to low concentration. The process of ventilating.
Pathophysiology BMS 243 The Respiratory System Introduction Dr. Aya M. Serry 2015/2016.
Gas Exchange Mr. Tamashiro Distinguish between ventilation, gas exchange and cell respiration. Ventilation: The flow of air in and out of the alveoli.
{ Topic 6.4 Gas Exchange Ventilation, alveoli structure & disease.
Biology Journal 2/21/14 What is oxygenated blood? Where could we find it? What is deoxygenated blood? Where could we find it?
6.4 Gas Exchange Understanding: -Ventilation maintains concentration gradients of oxygen and carbon dioxide between air in alveoli and blood flowing in.
Objectives By the end of the lesson you will be able to:- Identify the gross structures of the respiratory system; Describe the function of 4 of the gross.
Respiration & Breathing. Our cells need energy… For: Movement (muscle contraction) Heat generation (37°C) Active transport (absorption in the gut) Nerve.
The lungs are in the upper part of the body called the thorax.
Ventilation Noadswood Science, Ventilation To know how ventilation takes place in the body Sunday, October 02, 2016.
The Respiratory System
How the Lungs Work.
Respiratory System Unit 1: Anatomy and Physiology
Gas Exchange: Respiration
Structure of the lungs and Pulmonary Ventilation
RESPIRATION THE RESPIRATORY SYSTEM GAS EXCHANGE WITHIN THE LUNGS
8 Science Respiratory System.
6.4 Gas Exchange.
6.4 Gas Exchange (Core).
6.4 – Gas Exchange.
The Respiratory System
6.4 Gas Exchange.
breathe just breathe. breathing is good.
6.4 Gas Exchange Respiratory System.
The Respiratory System
Respiratory System.
6.4 Gas Exchange.
The Respiratory System
Respiration.
6.4 – Gas Exchange.
The circulatory system transports blood and other materials.
The Respiratory System
VENTILATION.
RESPIRATORY SYSTEM Topic 6.4 IB Biology Miss Werba.
IB BIOLOGY Year 1 Human Health and Physiology Topic 6.4 Gas Exchange
Gas Exchange Respiratory System.
The Human Respiratory System
Settler Describe and explain the 2 features that make an exchange surface efficient (4 marks) Students to feedback answers – check understanding from.
The Human Respiratory System
6.4 Gas Exchange.
6.4 – Gas Exchange.
6.4 Gas Exchange Applications:
8 Science Respiratory System.
6.4 Gas Exchange.
Breathing and the Respiratory System
The circulatory system transports blood and other materials.
Gas Exchange.
Presentation transcript:

One of the great exchange systems in the body Gas exchange One of the great exchange systems in the body © 2016 Paul Billiet ODWS

Breathing ≠ Respiration Ventilation is the pumping of air into and out of the alveoli of the lungs Gas exchange is the exchange of CO2 and O2 between the air in the alveoli and the blood in the capillaries Cell respiration is the process that consumes the O2 and produces the CO2. It takes place in all the cells. © 2016 Paul Billiet ODWS

The exchange surface 70m2 of air meets 60m2 of blood www.european-lung-foundation.org/uploads/Docu... © 2016 Paul Billiet ODWS

Capillaries Capillary network of a rat lung © 2016 Paul Billiet ODWS www.southalabama.edu/.../clip_image002_0010.jpg © 2016 Paul Billiet ODWS

Alveoli (300 million) © 2016 Paul Billiet ODWS www.european-lung-foundation.org/uploads/Docu... © 2016 Paul Billiet ODWS

Alveolar wall Type 1 & type 2 pneumocytes © 2016 Paul Billiet ODWS www.european-lung-foundation.org/uploads/Docu... Type 1 & type 2 pneumocytes © 2016 Paul Billiet ODWS

Adaptations Large surface area 70m2 Thin barrier to diffusion 0.4µm (type 1 pneumocytes) Constant renewal of air and blood, maintains concentration gradient Surfactant stops sides sticking (type 2 pneumocytes). warriors.warren.k12.il.us/dburke/alveoli2.jpg © 2016 Paul Billiet ODWS

The ventilation system Intercostal muscles Trachea Bronchus Bronchioles Diaphragm Heart Lung Ribs Larynx Cartilage rings © 2016 Paul Billiet ODWS

Ventilation © 2016 Paul Billiet ODWS http://www.merck.com/mmhe/sec04/ch038/ch038e.html © 2016 Paul Billiet ODWS

Ventilation - Inhaling The diaphragm muscles contract and the diaphragm is pulled down The external intercostals contract and the ribs rise The lungs expand with the thorax and the lung volume increases The pressure in the thorax falls, air is drawn into the lungs. © 2016 Paul Billiet ODWS

Ventilation - Exhaling The diaphragm muscle relax and the elastic lung tissue retracts The external intercostals relax and the ribs fall The lung volume diminishes and air leaves the lungs Air may be forced out by the internal intercostals and abdominal muscles contracting to pull the ribs down. © 2016 Paul Billiet ODWS

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

© 2024 SlidePlayer.com Inc. All rights reserved.