Overview of respiratory system

Overview of respiratory system - Divisions of breathing...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Divisions of breathing apparatus Torso Consists of upper and lower divisions divided by diaphragm Upper cavity = thorax or chest Filled with heart and lungs Lower cavity = abdomen or belly Contains most of digestive system + other organs and glands
Background image of page 1

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

View Full DocumentRight Arrow Icon
Pulmonary apparatus Parts of breathing apparatus responsible for containing and conducting air and exchanging gas (i.e., oxygen and carbon dioxide) Subdivided into pulmonary airways and lungs
Background image of page 2
Pulmonary airways Complex network of flexible tubes through which air is moved to and from the lungs Pulmonary tree Upper end = trachea Runs from bottom of larynx into the torso Composed of c-shaped cartilages, open in the back Completed by anterior wall of esophagus Lower end = main stem bronchi Branch into lobar bronchi that correspond with the 5 lobes of the lungs (2 on left, 3 on right) Successive branchings ultimately lead to 300,000,000 alveoli (air-filled cul de sacs) where oxygen and carbon dioxide are exchanged
Background image of page 3

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

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/13/2010 for the course CODS 361 taught by Professor Gel during the Spring '10 term at WPUNJ.

Page1 / 12

Overview of respiratory system - Divisions of breathing...

This preview shows document pages 1 - 4. Sign up to view the full document.

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