Cards (17)

    • Functions of the Respiratory System

      • Gas exchange
      • Regulation of blood pH
      • Voice production
      • Olfaction
      • Innate immunity
    • Nose
      External nose & nasal cavity
    • Nasal cavity
      From nares/nostrils to choanae (openings into pharynx)
    • Nasal septum
      Divides cavity into right & left
    • Hard palate
      Floor; separates nasal from oral cavity
    • Conchae
      Bony ridges on lateral walls of nasal cavity
    • Paranasal sinuses
      Air-filled spaces with a bone; produce mucus, reduce weight of skull, acts as resonating chamber
    • Nasolacrimal duct

      Carry tears from eyes & open into nasal cavity
    • Pharynx/Throat
      Common passageway for respiratory & digestive systems
    • Nasopharynx
      Superior part; associated with soft palate, uvula, pharyngeal tonsil
    • Oropharynx
      Extends from uvula to epiglottis; where oral cavity opens; also with palatine & lingual tonsils
    • Laryngopharynx
      Extends from tip of epiglottis to esophagus; where food & drink pass through but with small amount of air
    • Larynx/Voice Box
      Consists of 9 cartilages, 3 unpaired & 6 form 3 pairs
    • Thyroid cartilage/ Adam's apple

      Largest
    • Cricoid cartilage

      Most inferior, forms base of larynx
    • Epiglottis
      With elastic cartilage, covers opening of larynx
    • Cuneiform, corniculate, arytenoid cartilages
      Paired & form an attachment site for vocal cords