17/02/2021
Why do we breathe?
Ventilation
Part 3 of 4
Dr. Arpana Dhar
Acknowledgement : Dr. Ajanthy A.
1
WARNING
This material has been reproduced and communicated to you by or on
behalf of Curtin University in accordance with section 113P of the
Copyright Act 1968 (the Act)
The material in this communication may be subject to copyright under the
Act. Any further reproduction or communication of this material by you
may be the subject of copyright protection under the Act.
Do not remove this notice.
Please note that these unit materials contain images/videos of cadaveric
material obtained under the Anatomy Licence held by the Anatomy
Facility at Curtin University and are bound by the regulations of the
Anatomy Act of Western Australia (1930).
These images/videos are for study purposes only and must not be shared or
distributed outside of this Blackboard site as this constitutes a breach of the
Anatomy Act. A breach of the Anatomy Act is considered to be student
misconduct and is dealt with in accordance with Statute No.10 Student
Discipline.
2
1
, 17/02/2021
3
Specific Learning Objectives
▪ Describe the basic anatomy of the respiratory tract beginning at the nasal cavity and ending at the alveoli.
▪ Describe the structure of the lungs.
▪ List the components of the respiratory membrane.
▪ Explain the role of the thoracic wall and pleura in respiration.
▪ Explain how contraction of respiratory muscles causes a change in thoracic volume during quiet and
active breathing.
▪ Describe the changes in alveolar pressure and how they relate to movement of air into and out of the
lungs.
▪ Describe how surfactant and pleural pressure prevent lung collapse.
▪ Describe the mechanism of gas exchange, and gas transport around the body.
▪ Define alveolar ventilation, pulmonary volumes and capacities.
4
2
Why do we breathe?
Ventilation
Part 3 of 4
Dr. Arpana Dhar
Acknowledgement : Dr. Ajanthy A.
1
WARNING
This material has been reproduced and communicated to you by or on
behalf of Curtin University in accordance with section 113P of the
Copyright Act 1968 (the Act)
The material in this communication may be subject to copyright under the
Act. Any further reproduction or communication of this material by you
may be the subject of copyright protection under the Act.
Do not remove this notice.
Please note that these unit materials contain images/videos of cadaveric
material obtained under the Anatomy Licence held by the Anatomy
Facility at Curtin University and are bound by the regulations of the
Anatomy Act of Western Australia (1930).
These images/videos are for study purposes only and must not be shared or
distributed outside of this Blackboard site as this constitutes a breach of the
Anatomy Act. A breach of the Anatomy Act is considered to be student
misconduct and is dealt with in accordance with Statute No.10 Student
Discipline.
2
1
, 17/02/2021
3
Specific Learning Objectives
▪ Describe the basic anatomy of the respiratory tract beginning at the nasal cavity and ending at the alveoli.
▪ Describe the structure of the lungs.
▪ List the components of the respiratory membrane.
▪ Explain the role of the thoracic wall and pleura in respiration.
▪ Explain how contraction of respiratory muscles causes a change in thoracic volume during quiet and
active breathing.
▪ Describe the changes in alveolar pressure and how they relate to movement of air into and out of the
lungs.
▪ Describe how surfactant and pleural pressure prevent lung collapse.
▪ Describe the mechanism of gas exchange, and gas transport around the body.
▪ Define alveolar ventilation, pulmonary volumes and capacities.
4
2
