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    Maxillary A.&n. + Mandibular N.

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    Xajepox
    The maxillary artery has three parts related to the lateral pterygoid muscle. It enters the infratemporal fossa and gives off branches including the inferior alveolar artery before exiting through the pterygomaxillary fissure into the pterygopalatine fossa. In the pterygopalatine fossa, it gives branches like the infraorbital artery and sphenopalatine artery before exiting through the sphenopalatine foramen. The mandibular nerve enters the infratemporal fossa through the foramen ovale and gives off branches including the lingual and inferior alveolar nerves. The maxillary nerve enters the pterygopalatine foss

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    Maxillary A.&n. + Mandibular N.

    Uploaded by

    Xajepox
    16 views2 pages
    The maxillary artery has three parts related to the lateral pterygoid muscle. It enters the infratemporal fossa and gives off branches including the inferior alveolar artery before exiting through the pterygomaxillary fissure into the pterygopalatine fossa. In the pterygopalatine fossa, it gives branches like the infraorbital artery and sphenopalatine artery before exiting through the sphenopalatine foramen. The mandibular nerve enters the infratemporal fossa through the foramen ovale and gives off branches including the lingual and inferior alveolar nerves. The maxillary nerve enters the pterygopalatine foss

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    Maxillary a.&N. + Mandibular N.

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    The maxillary artery has three parts related to the lateral pterygoid muscle. It enters the infratemporal fossa and gives off branches including the inferior alveolar artery before exiting through the pterygomaxillary fissure into the pterygopalatine fossa. In the pterygopalatine fossa, it gives branches like the infraorbital artery and sphenopalatine artery before exiting through the sphenopalatine foramen. The mandibular nerve enters the infratemporal fossa through the foramen ovale and gives off branches including the lingual and inferior alveolar nerves. The maxillary nerve enters the pterygopalatine foss

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    16 views2 pages

    Maxillary A.&n. + Mandibular N.

    Uploaded by

    Xajepox
    The maxillary artery has three parts related to the lateral pterygoid muscle. It enters the infratemporal fossa and gives off branches including the inferior alveolar artery before exiting through the pterygomaxillary fissure into the pterygopalatine fossa. In the pterygopalatine fossa, it gives branches like the infraorbital artery and sphenopalatine artery before exiting through the sphenopalatine foramen. The mandibular nerve enters the infratemporal fossa through the foramen ovale and gives off branches including the lingual and inferior alveolar nerves. The maxillary nerve enters the pterygopalatine foss

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    © All Rights Reserved
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    Download as docx, pdf, or txt
    of 2

    Maxillary artery (three parts in relation to

    Lateral Pterygoid muscle)


    1st and 2nd parts are content of the infratemporal fossa
    3rd part is content of the pterygopalatine fossa
    Maxillary artery enters the infratemporal fossa deep to the neck of the mandible
    It leaves the infratemporal fossa through Pterygomaxillary fissure to enter the
    pterygopalatine fossa
    Maxillary A. leaves the pterygopalatine fossa as a branch (or a direct continuation)
    through the sphenopalatine foramen to enter the nasal cavity

    In the infratemporal fossa the maxillary artery (1st and 2nd parts) gives
    the following branches (important branches)
    1- Inferior alveolar A. to enter the mandible through mandibular foramen
    2- Middle meningeal A. to enter the cranial cavity through foramen spinosum
    3- Accessory middle meningeal A. to enter the cranial cavity through the
    foramen Ovale (MALE)
    4- Muscular branches to the muscles of mastication
    5- Buccal A. branch to buccal mucosa and buccinator muscle

    In the pterygopalatine fossa (3rd part) gives the following branches


    (important branches)
    1- Infraorbital A – to orbit – through inferior orbital fissure
    2- Nasal branch (sphenopalatine A.) (direct continuation) – to nasal cavity –
    through sphenopalatine foramen
    3- Palatine artery (greater and lesser) to oral cavity – through palatine
    foramen (canal)
    4- Posterior superior alveolar A. to enter the maxilla (upper molar teeth)
    5- Pharyngeal branch (to pharynx) and pterygoid canal branches (to cranial
    fossa)
    Mandibular nerve enters the infratemporal
    fossa through foramen ovale (MALE)
    It gives the following branches (important branches)
    1- Buccal nerve leaves between the two head lateral pterygoid to the buccal
    mucosa through buccinator muscle
    2- The auriculotemporal nerve leaves fossa deep to neck of mandible
    3- Lingual N. leaves the fossa to oral cavity (accompanied by chorda tympani)
    4- Inferior alveolar nerve leaves fossa through mandibular foramen
    Note: lesser petrosal nerve enters the fossa through foramen Ovale (MA LE) to
    Otic ganglion

    Maxillary nerve enters the pterygopalatine


    fossa through foramen rotundum
    It gives the following branches in the pterygopalatine fossa (important
    branches)
    1- Infraorbital nerve (continuation) and zygomatic branches leave the fossa
    through inferior orbital fissure to the orbit
    2- Palatine nerve (greater and lesser) leaves the fossa through the palatine
    foramen (canal) to enter the oral cavity
    3- Pharyngeal branch to pharynx through palatovaginal foramen
    4- Nasal branches to nasal cavity through sphenopalatine foramen
    5- Post. sup. Alveolar N. to maxilla (upper molar teeth)

    Note: nerve of pterygoid canal (Vidian nerve) enters the fossa through pterygoid
    canal to Pterygopalatine ganglion

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