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Mastoid emissary vein

mastoid emissary vein n.
A vein that connects the sigmoid sinus with the occipital vein or with one of the tributaries of the outer jugular vein by way of the mastoid foramen.


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  • Mastoideocentesis

    mastoideocentesis mas·toi·de·o·cen·te·sis (mās-toi’dē-ō-sěn-tē’sĭs) n. Surgical puncture of the mastoid sinuses and the mastoid antrum.

  • Mastoid foramen

    mastoid foramen n. An opening at the rear of the mastoid process, transmitting a small artery to the dura mater and an emissary vein to the sigmoid sinus.

  • Mastoiditis

    [mas-toi-dahy-tis] /ˌmæs tɔɪˈdaɪ tɪs/ noun, Pathology. 1. inflammation of the . /ˌmæstɔɪˈdaɪtɪs/ noun 1. inflammation of the mastoid process mastoiditis mas·toid·i·tis (mās’toi-dī’tĭs) n. Inflammation of the mastoid process and mastoid sinuses. mastoiditis (mās’toid-ī’tĭs) Inflammation of the mastoid process, usually resulting from an acute infection of the middle ear.

  • Mastoidotomy

    mastoidotomy mas·toid·ot·o·my (mās’toi-dŏt’ə-mē) n. Incision into the subperiosteum or the mastoid process of the temporal bone.

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