1. Respiratory System Sports Training and Physiology Kociuba http://kidshealth.org/PageManager.jsp? lic=1&article_set=59300&cat_id=20607 http://kidshealth.org/PageManager.jsp? lic=1&article_set=59300&cat_id=20607

2. Respiratory System - Objectives State the functions of the respiratory system Describe the anatomy of the system Explain how the gas exchange is possible and how the parts work together for it Discuss effects of training on the lungs Review how aging changes the system

3. Functions of the Respiratory System Gas exchange –Oxygen and carbon dioxide exchange Regulation of blood pH –It alters the pH by the amount of carbon dioxide found in the blood Voice production –Air movement past the vocal folds creates sound and makes speech possible

4. Functions of the Respiratory System Olfaction (smelling) –When we breathe in through our nose, our sense of smell occurs Protection –Prevents some micro organisms from entering the body and removes them from respiratory surfaces

5. Anatomy Upper Respiratory –Nose: physically seen –Nasal Cavity: back cavity found in your face –Pharynx: passage way shared by the digestive and respiratory system Lower Respiratory –Larynx: anterior part of the throat meets the trachea –Trachea: (aka) windpipe –Bronchi: 2 smaller tubes of the trachea that branch into each lung

6. Anatomy

7. Anatomy Lungs –Main organs of respiration –Right lung has 3 lobes Superior Middle Inferior –Left lung has 2 lobes Superior Inferior

8. Lungs In the lungs there are broncho-pulmonary segments –Lobar (secondary) –Segmental (tertiary) –Bronchioles –Terminal Bronchioles

9. Anatomy The terminal bronchioles breakdown even further into respiratory bronchioles then alveoli Alveoli is where gas exchange happens into the capillaries

10. Exercise and the Respiratory System Respiration increases abruptly when exercise first begins As exercise continues, respiration then increases more gradually until the anaerobic threshold is reached

11. Aging and the Respiratory System All aspects are effected by aging Mucus accumulates and becomes thick in the system making it harder to clear Maximal intake decreases because the alveoli and bronchioles become larger creating more dead space in the lungs –This also creates dead space for gas exchange in the alveoli and less oxygen is getting through