RespirationRespiration

Breathing!Breathing!

Terminology (1-1-2)Terminology (1-1-2)

1. –(o)tomy1. –(o)tomy 8. cochlea- 8. cochlea-2. pulmo-2. pulmo- 9. pariet- 9. pariet-3. alveol-3. alveol- 10. pneum 10. pneum 4. –ia4. –ia 11. olfact-11. olfact-5. bronch-5. bronch- 12. pleur-12. pleur-6. thorac- 6. thorac- 13. patho-13. patho-7. scler- 7. scler- 14. in-14. in-

15. -pnea15. -pnea

BLESS YOU!BLESS YOU!

IntroductionIntroductionGetting OGetting O22 to blood to blood

Moving OMoving O2 2 from blood to from blood to

cellcellMoving OMoving O2 2 from cell to from cell to

MitochondriaMitochondria

IntroductionIntroduction

Getting COGetting CO22 out of out of

cells.cells.Move COMove CO22 to blood to blood

Get rid of COGet rid of CO22

FUNCTIONS of Respiratory FUNCTIONS of Respiratory SystemSystem

1. Provide gas 1. Provide gas exchange surface, exchange surface, move air to and from move air to and from that surface.that surface.

FUNCTIONSFUNCTIONS

2. Protect surface 2. Protect surface area from dehydration, area from dehydration, temperature changes, temperature changes, and environment.and environment.

FUNCTIONSFUNCTIONS

3. Defend against 3. Defend against pathogenic organisms pathogenic organisms (disease causing)(disease causing)

FUNCTIONSFUNCTIONS

4. Communication 4. Communication ~ Verbal~ Verbal

ActivityActivity

GOLD COLDFISHGOLD COLDFISH

Respiratory Tract:Respiratory Tract:

Divided into two Divided into two sections: upper and sections: upper and lower.lower.

Respiratory Tract:Respiratory Tract:

Upper: Conducting Upper: Conducting passagewaypassageway

Lower: Respiratory Lower: Respiratory passagewaypassageway

UPPER RESPIRATORYUPPER RESPIRATORY

Respiratory Respiratory EpitheliumEpithelium: Ciliated : Ciliated cells that secrete cells that secrete mucus, a mucus mucus, a mucus elevator.elevator.

CILIACILIA

NASAL CAVITYNASAL CAVITY

Nasal cavity is Nasal cavity is covered with mucus.covered with mucus.

NASAL CAVITYNASAL CAVITY

NASAL CAVITYNASAL CAVITY

FUNCTIONSFUNCTIONS::1. Warm air to body 1. Warm air to body temperaturetemperature

NASAL CAVITYNASAL CAVITY

2. Filter air for 2. Filter air for respiration (using respiration (using cilia and mucus)cilia and mucus)

NASAL CAVITYNASAL CAVITY

3. Moisten air for 3. Moisten air for exchange.exchange.

NASAL CAVITYNASAL CAVITY

4. Olfaction: Sense 4. Olfaction: Sense of smell receptors.of smell receptors.

NASAL CAVITYNASAL CAVITY

5. Resonating 5. Resonating chamber for Voice.chamber for Voice.

NASAL CAVITYNASAL CAVITY

External NaresExternal Nares: : Nostrils, coarse hair Nostrils, coarse hair protects opening.protects opening.

NASAL CAVITYNASAL CAVITY

Nasal SeptumNasal Septum: : (134+439) divides (134+439) divides nose into left and right nose into left and right chambers. Made of chambers. Made of cartilage/bone.cartilage/bone.

NASAL SEPTUMNASAL SEPTUM

NASAL CAVITYNASAL CAVITY

Nasal ConchaeNasal Conchae: (134) : (134) Projections from side, Projections from side, increases surface increases surface area and turbulence.area and turbulence.

NASAL NASAL ConchaeConchae

NasopharynxNasopharynx: Place where : Place where nasal cavity joins pharynxnasal cavity joins pharynx

Contains adenoids Contains adenoids (pharyngeal tonsils)(pharyngeal tonsils)

Eustachian tubes connect Eustachian tubes connect to middle ear.to middle ear.

NASAL CAVITYNASAL CAVITY

Epistaxis: Bloody Epistaxis: Bloody nose, lots of blood nose, lots of blood WHY?WHY?

Warming air.Warming air.

NASAL CAVITYNASAL CAVITY

Why do you get a Why do you get a runny nose on a runny nose on a cold day?cold day?

NASAL CAVITYNASAL CAVITY

Air condenses Air condenses when it hits the cold when it hits the cold nose surface.nose surface.