Respiratory System
1 / 57

Respiratory System - PowerPoint PPT Presentation

  • Uploaded on

Respiratory System. Objective 1. See diagram. Pathway:. Nostril—sinuses—pharynx—larynx—trachea—bronchi—bronchioles—bronchiole tube--alveoli. alveoli. Objective 2: Protection. Mucus collects dust and debris Cilia propel mucus Hairs filter air. Objective 3 Membrane Structure

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about ' Respiratory System' - denise

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

Objective 1
Objective 1

  • See diagram


  • Nostril—sinuses—pharynx—larynx—trachea—bronchi—bronchioles—bronchiole tube--alveoli

Objective 2 protection
Objective 2: Protection

  • Mucus collects dust and debris

  • Cilia propel mucus

  • Hairs filter air

Objective 3

Membrane Structure

Single cell layer thick

Covered with capillaries

Allows rapid exchange of gases

Objective 4 lungs pleura
Objective 4: Lungs/Pleura

  • Left Lung—two lobes

  • Right lung—three lobes

  • Pleura—thin lining on outside between lung and thoracic wall


  • Locate the respiratory structures on the cat pluck.

  • Insert the pins in the structures.

Day 2

Day 2


Look over 6 weeks grades

Conduct lung volume lab

Respiration unit day 3

Respiration Unit Day 3

"Virtue herself is her own fairest reward."-Silius Italicus, Punica

Today s agenda
Today’s Agenda

  • Look over air flow sequence

  • Notes on objective 5-9

  • Lung volume Lab

Boyles law and breathing
Boyles Law and Breathing

  • Boyles Law: Pressure of a gas varies inversely with its volume. Inspiration lowers pressure in thorax, air flows inward. Expiration raises pressure, air moves out.

Objective 6 muscles of inspiration
Objective 6: Muscles of Inspiration

  • Inspiration occurs when the diaphragm and the intercostal muscles contract.

  • Expiration occurs more passively as these muscles relax and the lungs recoil.

Obj 7 partial vacuum
Obj. 7 Partial Vacuum

The intrapleural space (space between lung and wall of chest) always has a more negative pressure than the interpulmonary space (inside lungs).

Obj 7 partial vacuum1
Obj. 7 Partial Vacuum

The negative pressure must exist at all times to keep the lung in its proper shape and location to prevent lung collapse.

Obj 8 pulmonary ventilation
Obj. 8 Pulmonary Ventilation

  • Friction in airways causes resistance and results in more strenuous breathing.

  • Lung compliance depends on the elasticity of the lungs and chest flexibility.

Obj 8 pulmonary ventilation1
Obj. 8 Pulmonary Ventilation

  • Surface tension of alveolar fluid reduces alveoli size and could collapse alveoli.

Obj 9 lung volumes
Obj. 9 Lung Volumes

  • Tidal volume – normal inhale/exhale amount

  • Residual volume – air that remains in lungs after exhale.

Obj 9 lung volumes1
Obj. 9 Lung Volumes

  • Inspiratory volume – amount that can be forcefully inhaled

  • Expiratory reserve – amount of forced exhale

Today s agenda1
Today’s Agenda

  • Revisit Lung Volumes and gross anatomy.

    • Quiz

    • Complete Volumes worksheet using summary chart in notes

  • Notes on objectives 10-13

Today s agenda2
Today’s Agenda

  • Notes on objectives 10-13

  • Respiration video

  • Practice questions

Obj 10
Obj. 10

  • Oxygen goes into blood @ alveoli

  • Oxygen moves from blood into cells at the capillary bed.

  • Oxygen is transported by hemoglobin.

  • Carbon dioxide is most likely transported at bicarbonate ion.

Obj 11
Obj. 11

  • Oxygen is transported in the blood attached to hemoglobin

HHb + O2 --> HbO2

Objective 12
Objective 12

  • Carbon dioxide is carried in the body primarily as bicarbonate ion.

CO2 +H2O -->H2CO3-->H + CO3-

Respiration unit day 6

Respiration Unit: Day 6

"The scientific theory I like best is that the rings of Saturn are composed entirely of lost airline luggage."-Mark Russell

Today s agenda3
Today’s Agenda

  • Complete Objective Notes

  • Practice matching symptom & disorder

  • Homeostatic Imbalances sheet

Obj 111
Obj. 11

  • Oxygen is transported in the blood attached to hemoglobin

HHb + O2 --> HbO2

Objective 121
Objective 12

  • Carbon dioxide is carried in the body primarily as bicarbonate ion.

CO2 +H2O -->H2CO3-->H + CO3-

Obj 13
Obj. 13

  • Respiration rates can be effected by emotions, pain, carbon dioxide levels and reflexes.

  • (see separate sheet for notes)

Eupnea = Normal breathing

Apnea = to stop breathing

Hyperpnea = excess breathing due to exercise and increased need.

Dyspnea = labored breathing

Disorders continued
Disorders Continued

  • Hypoxia= Chronic Oxygen deficiency

  • Bronchitis = respiratory passageways become clogged by elevated mucus production.

  • COPD = chronic obstructive pulmonary disorder resulting from the combination of chronic bronchitis and emphysema.


  • TB= tuberculosis-bacterial infection of lungs, airborne

  • Emphysema = bronchiole walls are damaged, difficulty in normal breathing causes barrel chest.

  • Lung cancer = excessive cell division of lung tissues, has been directly tied to smoking.