Respiration Breathing!
Terminology (1-1-2) 1. –(o)tomy 8. cochlea- 2. pulmo- 9. pariet- 3. alveol- 10. pneum 4. –ia 11. olfact- 5. bronch- 12. pleur- 6. thorac- 13. patho- 7. scler- 14. in- 15. -pnea
BLESS YOU!
Introduction Getting O2 to blood Moving O2 from blood to cell Moving O2 from cell to Mitochondria
Getting CO2 out of cells. Move CO2 to blood Get rid of CO2 Introduction Getting CO2 out of cells. Move CO2 to blood Get rid of CO2
FUNCTIONS of Respiratory System 1. Provide gas exchange surface, move air to and from that surface.
FUNCTIONS 2. Protect surface area from dehydration, temperature changes, and environment.
3. Defend against pathogenic organisms (disease causing) FUNCTIONS 3. Defend against pathogenic organisms (disease causing)
4. Communication ~ Verbal FUNCTIONS 4. Communication ~ Verbal
Activity GOLD COLDFISH
Divided into two sections: upper and lower. Respiratory Tract: Divided into two sections: upper and lower.
Upper: Conducting passageway Lower: Respiratory passageway Respiratory Tract: Upper: Conducting passageway Lower: Respiratory passageway
UPPER RESPIRATORY Respiratory Epithelium: Ciliated cells that secrete mucus, a mucus elevator.
CILIA
Nasal cavity is covered with mucus.
NASAL CAVITY
1. Warm air to body temperature NASAL CAVITY FUNCTIONS: 1. Warm air to body temperature
2. Filter air for respiration (using cilia and mucus) NASAL CAVITY 2. Filter air for respiration (using cilia and mucus)
3. Moisten air for exchange. NASAL CAVITY 3. Moisten air for exchange.
4. Olfaction: Sense of smell receptors. NASAL CAVITY 4. Olfaction: Sense of smell receptors.
5. Resonating chamber for Voice. NASAL CAVITY 5. Resonating chamber for Voice.
Nostrils, coarse hair protects opening. NASAL CAVITY External Nares: Nostrils, coarse hair protects opening.
NASAL CAVITY Nasal Septum: (134+439) divides nose into left and right chambers. Made of cartilage/bone.
NASAL SEPTUM
NASAL CAVITY Nasal Conchae: (134) Projections from side, increases surface area and turbulence.
NASAL Conchae
Nasopharynx: Place where nasal cavity joins pharynx Contains adenoids (pharyngeal tonsils) Eustachian tubes connect to middle ear.
Epistaxis: Bloody nose, lots of blood WHY? NASAL CAVITY Epistaxis: Bloody nose, lots of blood WHY? Warming air.
Why do you get a runny nose on a cold day? NASAL CAVITY Why do you get a runny nose on a cold day?
Air condenses when it hits the cold nose surface. NASAL CAVITY Air condenses when it hits the cold nose surface.