Rabbit Digestion & Respiration

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Author:
tkschmidt
ID:
186181
Filename:
Rabbit Digestion & Respiration
Updated:
2012-11-30 15:32:37
Tags:
rabbit digestion respiration
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Description:
Rabbit Lab Practical terms
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  1. salivary glands:
    mandibular
    parotid
    • produce salive to lubricate food
    • enzymes begin chemical digestion (starches --> simple sugars)
  2. Teeth:
    incisors
    premolars
    molars
    • teeth grow continuously throughout life
    • incisors - self sharpening
  3. Hard and Soft Palate
    • hard palate with rugae
    • separate nasopharynx and oropharynx (secondary palate)
  4. Epiglottis
    • between tongue and larynx
    • prevents food from entering larynx
  5. larynx
    • "voice box"
    • anterior end of trachea
    • 9 cartilages *homologous to visceral arch cart. 4-6
    • connects pharynx to trachea
    • breathing, sound production and protecting trachea from food
  6. thyroid cartilage
    • visc. arch 4 and 5
    • "Adam's Apple"
    • ventral and lateral walls (anteriorly)
  7. cricoid cartilage
    • lateral and dorsal walls (posteriorly)
    • visc arch 6
  8. arytenoid cartilages
    • anterior to dorsal part of cricoid
    • small, triangular
    • visc arch 6
  9. vocal cords
    lateral folds between arytenoid and thyroid
  10. glottis
    • small, slit-like opening to larynx
    • closed unless inhale/exhale
  11. trachea
    • "windpipe"
    • posteriorly from larynx to lungs
    • tracheal rings present (visc arch 7) - prevent collapsing
  12. lungs
    • cranial, middle, and caudal lobes on both sides
    • 7th accessory lobe on the right side (from further division of the posterior/caudal lobe)
  13. pulmonary ligament
    mesentary anchoring lungs to wall of pleural cavity
  14. mediastinum
    space within mediastinal septum containing the heart, esophagus, trachea, nerves, blood vessels, etc
  15. How does the trachea split in the lungs?
    (bronchial tree)
    • principal bronchus
    • segmental bronchus
    • numerous bronchioles
    • passages terminate in pulmonary alveoli
  16. diaphragm
    • muscular
    • separates thoracic and abdominal cavities

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