Floor of the Mount Surgical Anatomy

Rodrigo Arrangoiz MS, MD, FACS, FSSO
  • Surgical anatomy:
    • The floor of mouth:
      • Is the mucosal lining of the anterior and lateral floor of the mouth
    • The area is bound anteriorly and laterally:
      • By the attached mucoperiosteum of the mandibular alveolus
    • The lateral floor of mouth is bound posteriorly:
      • By the anterior tonsillar pillars
    • Medially, the floor of mouth:
      • Merges with the ventral and lateral aspects of the tongue
  • The floor of mouth is lined by:
    • Nonkeratinizing stratified squamous epithelium similar to the buccal mucosa:
      • But with a less dense submucosa
    • Underlying the mucosa:
      • Lie minor salivary glands, the sublingual glands, submandibular ducts, hypoglossal nerves, lingual nerves and genioglossus muscles:
        • These structures are located in an area bound by the mylohyoid muscle laterally and hypoglossal muscle medially
    • The submandibular ducts:
      • Enter the mouth anteriorly either side of the lingual frenum
  • Sensory innervation to the area is by the:
    • Lingual branch of the mandibular division of the trigeminal nerve
  • Lymphatic drainage of the lateral floor of the mouth is via:
    • The ipsilateral submandibular nodes to the deep cervical chain
  • Lymphatic drainage of the anterior floor of mouth is via:
    • The submental nodes to both the left and right deep cervical chains
  • Lingual lymph nodes in the floor of mouth:
    • Above the mylohyoid, may have implications regarding the management of tumors of the floor of mouth
#Arrangoiz #CancerSurgeon #HeadandNeckSurgeon #SurgicalOncologist #MountSinaiMedicalCenter #MSMC #Miami #Mexico

Published by Rodrigo Arrangoiz MS, MD, FACS, FSSO

My name is Rodrigo Arrangoiz I am a breast surgeon/ thyroid surgeon / parathyroid surgeon / head and neck surgeon / surgical oncologist that works at Center for Advanced Surgical Oncology in Miami, Florida. I was trained as a surgeon at Michigan State University from (2005 to 2010) where I was a chief resident in 2010. My surgical oncology and head and neck training was performed at the Fox Chase Cancer Center in Philadelphia from 2010 to 2012. At the same time I underwent a masters in science (Clinical research for health professionals) at the University of Drexel. Through the International Federation of Head and Neck Societies / Memorial Sloan Kettering Cancer Center I performed a two year head and neck surgery and oncology / endocrine fellowship that ended in 2016. Mi nombre es Rodrigo Arrangoiz, soy cirujano oncólogo / cirujano de tumores de cabeza y cuello / cirujano endocrino que trabaja Center for Advanced Surgical Oncology en Miami, Florida. Fui entrenado como cirujano en Michigan State University (2005 a 2010 ) donde fui jefe de residentes en 2010. Mi formación en oncología quirúrgica y e n tumores de cabeza y cuello se realizó en el Fox Chase Cancer Center en Filadelfia de 2010 a 2012. Al mismo tiempo, me sometí a una maestría en ciencias (investigación clínica para profesionales de la salud) en la Universidad de Drexel. A través de la Federación Internacional de Sociedades de Cabeza y Cuello / Memorial Sloan Kettering Cancer Center realicé una sub especialidad en cirugía de cabeza y cuello / cirugia endocrina de dos años que terminó en 2016.

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