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The Anatomy Of Larynx and Pharynx - Coggle Diagram

- - - - Superior laryngeal v. : drains into superior thyroid v. then into the internal jugular v.
      - Inferior laryngeal v. : drains into inferior thyroid v. then into the brachiocephalic vv.
    - - Internal laryngeal n. : sensory, targets the false vocal cord membranes; branch of superior laryngeal nerve (vagus)
      - Recurrent laryngeal n. : sensory and motor, targets membranes below the false vocal cords; innervates thyroarytenoid, cricoarytenoid, aryepiglotticus, thyroepiglotticus muscles; branch of the vagus nerve
      - External laryngeal n. : motor; innervates cricothyroid m., branch of superior laryngeal nerve from vagus n
    - - Superior laryngeal a. : superior thyroid a., arising from the external carotid a.
      - Inferior laryngeal a. : inferior thyroid a., arising from thyrocervical trunk
  - - - drains into inferior thyroid venous plexus, emptying into brachiocephalic veins
    - - from the pulmonary plexus, recurrent laryngeal nerves (branch of vagus n.), and sympathetic trunks
    - - it is supply by tracheal branches of inferior thyroid arteries, branching from the thyrocervical trunk
- - - - Voice box (larynx)
      - vocal folds
    - - throat (pharynx)
      - oral cavity
      - nasal cavities
    - - ribs
      - chest muscles
      - Diaphragm
      - abdominal muscles
      - lungs
- - - - Superior: nasopharynx
      - Inferior: posterior ⅓ of the tongue
      - Anterior: palatoglossal fold of oral cavity
      - Posterior: mucosa covering the superior and middle of constrictor mm.
      - Lateral: mucosa covering the superior and middle constrictors
    - - Palatine tonsils: located in the oropharynx which lies between the palatoglossal and palatopharyngeal folds
      - Epiglottic vallecula: it is the depression located immediately posterior to the root of the tongue
    - - it is located posteriorly to the oral cavity. it serve in two organ system respiratory and digestion.
  - - - Superior: oropharynx
      - Anterior: larynx and epiglottis
      - Posterior: mucosa covering middle and inferior constrictor mm.
      - Lateral: mucosa covering middle and inferior constrictors
    - - Piriform recess: it is a small depression that located on the lateral wall of laryngopharyngeal cavity on either side of the entrance to the larynx
    - - it is located posteriorly to the larynx it serve in two organ system respiratory and digestion.
  - - - Roof: fornix
      - Floor: soft palate
      - Anterior: choane of the nasal cavity
      - Posterior: mucosa covering superior constrictor
      - lateral: mucosa covering superior constrictor
    - - Ostium of the auditory tube: it opens into the nasopharynx
      - Torus turbarius: it is an elevation formed by the base of the cartilaginous portion of the auditory tube. it lies superiorly to the ostium
      - Salpingopharyngeal fold: it is mucous membrane that lies over the salpingopharyngeus m., functions to connect the lateral wall of the pharynx to torus tubarius
      - Pharyngeal recess: it is located posteriorly to the salpingopharyngeal fold, it also contains the pharyngeal tonsils (adenoids)
    - - it's located posteriorly to the nasal cavity, it has a function for respiratorion,. the auditory tube connect the middle ear with the nasopharynx and help to equalize the air pressure. the cartilaginous portion of auditory tube is closed except during deglutition and yawning