Inhalation & Exhalation

Slides:

Advertisements

Similar presentations

Gas Exchange IB Biology

Advertisements

Breathing Breathing- (aka ventilation), The process through which the respiratory system moves air into and out of the lungs. In contrast, Respiration.

6.4 Gas Exchange ★Distinguish between ventilation, gas exchange and cell respiration. ★Explain the need for a ventilation system. ★Describe the features.

Ventilation LO: All must label the respiratory system

Human Respiratory System

Respiration. How does respiration take place? There are two respiratory movements: Inspiration (inhalation) Expiration (exhalation) When you inhale, air.

1 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Human Biology Sylvia S. Mader Michael Windelspecht Chapter.

Chapter 19 Inspiration and Expiration. Ventilation Breathing – Movement of air from outside the body into the bronchial tree and alveoli and then back.

Function, Types of Respiration. Respiration External Respiration: exchange of gases between air in the lungs and in the blood Internal Respiration: exchange.

The Mechanics of Breathing

Topic 6.4 – Gas Exchange.

author unknown address unknown accessed unknown The Respiratory System The Respiratory System Keeping the Lungs Clean Keeping the Lungs Clean.

The Lungs How are the lungs adapted to provide our bodies with all the oxygen we need?

Respiratory Anatomy.

Inhalation rib cage pulled upward and outward

Physics of Respiration Boyle’s Law - the universal law of gases PV = nRT P 1 V 1 = P 2 V 2.

Gas Exchange and Breathing Characteristics of a Gas Exchange Surface Structure and Functioning of the Gas Exchange System.

4.2 The mechanism of breathing. Learning outcomes Students should understand the following: The mechanism of breathing. Pulmonary ventilation as the product.

Learning Objectives  Explain, with the use of diagrams, the process of breathing  Examine Respiratory Tissue slides under the microscope and Identify.

Respiratory System.

T HE R ESPIRATORY S YSTEM : B REATHING Human Bio 11.

Gas exchange Mrs. Jackie Maldonado. Respiratory system Composed Trachea- branches into two bronchi Bronchi- branches into many bronchioles Bronchioles-

Mechanics of Breathing November 28, Mechanics of Breathing November 28, 2015.

How do the musculoskeletal and cardiorespiratory systems of the body influence and respond to movement?

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.

VENTILATION IN HUMANS (ie the mechanism of breathing)

Pathophysiology BMS 243 The Respiratory System Introduction Dr. Aya M. Serry 2015/2016.

Topic 6 & 11: Human Physiology

Gas Exchange Mr. Tamashiro Distinguish between ventilation, gas exchange and cell respiration. Ventilation: The flow of air in and out of the alveoli.

Physiology of the Respiratory System. Objectives You will be able to… 1.Explain how air enters and leaves our lungs. Note: This covers all of the information.

Breathing Inhaling – breathing IN. Breathing IN CO 2 levels rise –detected by Medulla oblongata (brain) Impulse sent to diaphragm and intercostal muscles.

Respiration and Breathing Objectives Respiration!

Day 2 Agenda: Look over 6 weeks grades Conduct lung volume lab.

6.4 Gas Exchange Understanding: -Ventilation maintains concentration gradients of oxygen and carbon dioxide between air in alveoli and blood flowing in.

4.2 The mechanism of breathing

The Human Breathing System This system includes the lungs, pathways connecting them to the outside environment, and structures in the chest involved.

Muscles Involved In Ventilation MuscleOriginInsertionAction Diaphragm Xiphoid process, inferior margin of rib cage and lumbar vertebrae Central Tendon.

The Breathing Process An Explanation about the Lung Model.

The Respiratory System To explore lung structure and the mechanics of breathing.

Mechanisms of Ventilation Learning Targets: Define the process of ventilation. (knowledge) Determine how certain factors affect breathing rate. (reasoning)

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.

6.4 Gas Exchange.

RESPIRATION.  Gas exchange  4 tasks involved 1.Pulmonary ventilation 2.External respiration 3.Respiratory gas transport 4.Internal respiration.

The purpose of the respiratory system is to… The Respiratory System “bring the air we breathe into close contact with the blood so that oxygen can be.

Assessing Breathing Models Lesson 10. Breathing, or ventilation, is the process through which the respiratory system moves air into and out of the lungs.

1.2 – The structure and function of the respiratory system

Pulmonary Ventilation

Ventilation Inspiration: inhaling Expiration: exhaling

The mechanism of breathing

The mechanism of breathing

breathe just breathe. breathing is good.

Ventilation: The Mechanics of Breathing

The Respiratory System

PHED 1 Applied Physiology Mechanics of Breathing

IB BIOLOGY Year 1 Human Health and Physiology Topic 6.4 Gas Exchange

The Mechanism of Breathing

Gas Exchange Respiratory System.

Mechanics of Breathing (Pulmonary Ventilation)

6.4 Gas Exchange Applications:

Breathing Movements Pressure differences between the atmosphere and chest cavity determine the movement of gases into and out of the lung. Gases move from.

Breathing and the Respiratory System

Presentation transcript:

Inhalation & Exhalation Antagonistic Muscle action in ventilation External and internal intercostal muscles & diaphragm and abdominal muscles as examples of antagonistic muscle pairs Ventilation involves 2 pairs of opposite movements that change the volume and therefore the pressure inside the thorax.

Inspiration Diaphragm moves downward and flattens Ribcage moves upward and outward The volume inside the thorax increases, pressure decreases Pairs: Antagonistic Diaphragm contracts – moves down, pushes abdomen wall out Muscles in abdomen wall relax External intercostal muscles contract, move ribcage up and out Internal intercostal muscles relax

Expiration Diaphragm moves up and becomes dome shaped Ribcage moves downward and inward Volume inside the thorax decreases, pressure increases Antagonistic Pairs: Diaphragm relaxes, pushed up into dome shape Muscles in abdominal wall contract pushing diaphragm up External intercostal muscles relax Internal intercostal muscles contract, pulling ribcage in