THE MECHANICS OF BREATHING

Slides:

Advertisements

Similar presentations

Advertisements

Respiratory System Physiology

The Respiratory System

Functions of the Respiratory system

Respiratory System Revision.

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

Ventilation: the Mechanics of Breathing

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

Respiration Chapter 42. Respiration  Gas exchange  Movement of gas across membrane  Diffusion (passive)  To improve gas absorption  Increase surface.

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

P HYSIO E X 37B Dr. Kim Wilson. O BJECTIVES To define the following terms: ventilation, inspiration, expiration, forced expiration, tidal volume, expiratory.

BTEC NATIONAL Sport UNIT 5 THE BODY IN ACTION The respiratory system Dale Embleton UNIT 5 THE BODY IN ACTION.

Respiratory Volumes Used to assess a person’s respiratory status

THE RESPIRATORY SYSTEM Ch 16 Notes. IDENTIFY THE FUNCTIONS OF THE RESPIRATORY SYSTEM. Obtaining oxygen and removing carbon dioxide. Cellular Respiration:

Lung Function Learning Objectives

Respiration Lab.

The mechanics of breathing and Respiratory Volumes

The Respiratory System II Physiology. The major function of the respiratory system is to supply the body with oxygen and to dispose of carbon dioxide.

Chapter 16.  Ventilation includes:  Inspiration (inhalation)  Expiration (exhalation)

Respiratory Physiology. Inhalation Diaphragm contracts Ribs move up and out, chest cavity enlarges and pressure decreases Air rushes in from higher pressure.

Biomechanics of breathing. Lungs ventilation

Respiratory Physiology and Lung Capacity. Inhalation Diaphragm contracts Ribs move up and out, chest cavity enlarges and pressure decreases Air rushes.

Respiratory System – Part 2 How do we breathe? Key starting points: Lungs are in their own air-tight space Diaphragm powers breathing …With some help from.

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

These are measured with a spirometer This is estimated, based on

Respiratory Ventilation

Exercise 40 Respiratory Physiology 1. Processes of respiration Pulmonary ventilation External respiration Transport of respiratory gases Internal respiration.

Presentation title slide

Mechanics of Breathing Overview 1. Inspiration 2. Expiration 3. Respiratory Volumes.

Unit 1: Anatomy and Physiology in Sport Respiratory system and volumes Kevin Browne.

L UNG C APACITY. Under normal conditions, your regular breathing does not use up the full capacity of you lungs. As your body’s needs increase, so does.

ELAINE N. MARIEB EIGHTH EDITION 13 Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings PowerPoint ® Lecture Slide Presentation by.

11.1 The Function of Respiration

The Respiratory System Lung Volumes. Lung volumes The volume of air breathed in and out varies a lot between quiet breathing and forced breathing (as.

Copyright © 2009 Pearson Education, Inc. Figure 10.9 The respiratory cycle.

Mechanisms of Ventilation

The Respiratory System. Human Respiratory System Nose Passageway for air Mouth Passageway for food and air Epiglottis Covers larynx during swallowing.

ECAP BIOL The Respiratory System Mrs. Riel.

The structure and function of the respiratory system.

RESPIRATORY SYSTEM BREATHING MECHANISM AND LUNG VOLUMES & CAPACITIES.

Lung Capacity. Human Lung Capacity Influenced by many factors: – Age – Gender – Body position – Strength of diaphragm – Strength of chest muscles – Illness.

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

The Respiratory System Components The Nasal passages The tubes of respiration The Trachea The Bronchi and Bronchioles The Alveoli The Lungs.

Pages  Tidal Volume (TV): (know this) - total air moved with each breath  Normal breathing moves about 500 ml  Inspiratory reserve volume.

TURN IN RESP. WORKSHEET IN BLUE BASKET. GET A BOOK. Monday, February 29, 2016.

11.1 The Function of Respiration. Agenda Lesson 11.1 The Function of Respiration Read p Vocabulary Learning Check SG 166 # 1-3, SG 167 #1-3.

The Respiratory System

turn in homework from p. 467 Get out your respiratory diagrams.

Respiratory System.

These are measured with a spirometer This is estimated, based on

Breathing Volumes & Capacities

THE RESPIRATORY SYSTEM

What it Means to Breathe

Lung Function Learning Objectives

Lung Function Learning Objectives

Ventilation: The Mechanics of Breathing

Respiratory Physiology I

The Respiratory System: PART 2

Respiratory Physiology

Chapter 22: Respiratory System

Respiratory Physiology

Lab 11: Pulmonary Ventilation

11.1 The Function of Respiration

Challenge Problem Gas exchange occurs in the _________

PHED 1 Applied Physiology Lung Function

Volumes Tidal Volume (TV) = volume of air during one resting respiratory cycle. Expiratory Reserve Volume (ERV) = volume of air that can be forcefully.

Presentation transcript:

THE MECHANICS OF BREATHING

BREATHING Breathing change in air pressure in lungs Air moves from high pressure to low pressure

BREATHING controlled by two major muscles: Intercostal muscles - between ribs Diaphragm – below chest cavity

INSPIRATION (INHALING) diaphragm contracts & moves down intercostals pull up and out increases the volume of the chest cavity lowers pressure in lungs air rushes in through nose & mouth to fill alveoli

EXPIRATION (EXHALING) diaphragm and intercostals relax ribs are pulled down and inward Creates increased pressure in lungs air to rushes out respiratory pearson.notebook

LUNG CAPACITY regular breathing does not use the full capacity of lungs have reserves for various situation.

LUNG CAPACITY

LUNG CAPACITY Tidal Volume (TV)– volume of inhaled and exhaled in a normal breath. Inspiratory Reserve Volume (IRV) – additional volume that can be taken in Expiratory Reserve Volume (ERV) – additional volume that can be forced out

LUNG CAPACITY Vital Capacity (VC) – total volume of gas that can be moved in or out of the lungs VC = TV+IRV+ERV Residual Volume (RV) – amount remaining after a full exhalation prevents lungs from collapsing Total Lung Capacity (TLC) – total volume in lungs at one time

Regulation of Breathing usually unconscious brain sends nerve impulse to muscles to contract/relax controlled by CO2 levels in blood CO2 diffuses into plasma in blood forms H2CO3 in water

build up of H2CO3 lowers blood pH causes brain to send impulse to increase BR so CO2 gets exhaled Homeostasis – maintaining internal stable conditions