chapter17 Mechanics of Breathing

chapter17 Mechanics of Breathing - Chapter 17 Mechanics of...

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 17 Mechanics of Breathing
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
About this Chapter The respiratory system Gas laws Ventilation
Background image of page 2
Respiratory System Functions External Respiration Exchange of gases between the atmosphere and the blood Homeostatic regulation of body pH Protection from inhaled pathogens and irritating substances Vocalization
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Respiratory System Principles of Bulk Flow Flow from regions of higher to lower pressure Muscular pump creates pressure gradients Resistance to flow Diameter of tubes
Background image of page 4
Respiratory System Overview of external and cellular respiration Figure 17-1 CO2 O2 Alveoli of lungs Airways CO2 CO2 O2 O2 Pulmonary circulation CO2 O2 Cellular respiration ATP Nutrients Cells Systemic circulation CO2 O2 Exchange I: atmosphere to lung (ventilation) Transport of gases in the blood Exchange III: blood to cells Exchange II: lung to blood
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Respiratory System Components Conducting system Alveoli Bones and muscle of thorax
Background image of page 6
Respiratory System Figure 17-2a Right bronchus Left bronchus Left lung Diaphragm (a) The respiratory system Upper respiratory system Lower respiratory system Right lung Trachea Larynx Esophagus Vocal cords Pharynx Tongue Nasal cavity ANATOMY SUMMARY THE LUNGS AND THORACIC CAVITY
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Muscles Used for Ventilation Figure 17-2b Scalenes Sternocleido- mastoids External intercostals Muscles of inspiration Muscles of expiration Abdominal muscles Diaphragm (b) Muscles used for ventilation Internal intercostals
Background image of page 8
The Respiratory System Figure 17-3 Air-filled balloon Fluid-filled balloon Pleural fluid Pleural membrane Air space of lung
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Branching of Airways Figure 17-2e Bronchiole Trachea Cartilage ring Larynx Secondary bronchus Left primary bronchus (e) Branching of airways Alveoli ANATOMY SUMMARY THE LUNGS AND THORACIC CAVITY
Background image of page 10
Branching of the Airways Figure 17-4
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Conditioning Air Warming air to body temperature Adding water vapor Filtering out foreign material
Background image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/03/2012 for the course BIO 308 taught by Professor Acbrown during the Spring '10 term at Portland.

Page1 / 48

chapter17 Mechanics of Breathing - Chapter 17 Mechanics of...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online