Respiratory Class Notes

Pulmonary ventilation: Moving air in and out of the lungs

External respiration: Diffusion of gases (O₂ and CO₂) between lungs and blood; O₂ in, CO₂ out

Internal respiration: Diffusion of gases between blood and tissues; CO₂ in, O₂ out

Cellular respiration: Sugar + Oxygen —> Carbon dioxide + water + ATP

Respiratory system regulates pH of blood —> NOT O₂ !!!!

Hyperventilation = not enough CO₂; not enough carbonic acid→Respiratory alkilosis

Why breathe using nose, not mouth?

• Filters coarse materials using VIBRISSAE (Nose hairs)

• Warms incoming hair (nose can warm the hair)

  • Cold air can damage thin membrane

• Adds moisture

CONCHAE: Inside the nasal cavity; mixes up incoming air → Helps trap smaller particles that made it past the hairs

PHARYNGOTYMPANIC TUBE: Connection between nasal cavity and middle ear

UVULA:

HARD PALATE: