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词汇 adventitia
释义

Definition of adventitia in English:

adventitia

noun ˌadvɛnˈtɪʃəˌadvenˈtiSH(ē)ə
mass noun

  • The outermost layer of the wall of a blood vessel.

    外膜，动脉外膜

    Example sentencesExamples
    • The submucosa, muscularis propria and adventitia of the esophagus were normal.
    • They show a distinct so-called adventitia capillaris, a thin collagenous membrane, surrounding the endothelial tube.
    • The perimeters of the airway lumen and of the adventitia subtended two areas.
    • The arteries were most susceptible, with bruising of the intima and adventitia and separation of the media from the vessel walls.
    • The pathology findings consist of a cyst of gelatinous contents between the media and adventitia causing luminal compression.
    • The adventitia is a dense collagenous tissue that merges with the adventitia of the bladder and rectum and is highly vascular.
    • It diffusely replaced and expanded the adventitia of the aorta.
    • There is an intense inflammatory reaction concentrated primarily in the adventitia of this blood vessel with some extension into the tunica media.
    • These neuroendocrine tumors arise from the adventitia of the jugular bulb or the neural plexus within the middle ear space.
    • These are superficial lacerations of the intima that do not involve the media or adventitia.
    • With still greater increases in caliber, a distinct intima, media, and adventitia become recognizable.
    • The outer layer of veins comprises the tunica adventitia.
    • The adventitia was stripped, and the endothelium was removed.
    • This xanthogranulomatous tissue involved the adventitia of large-caliber vessels and infiltrated the atrial myocardium.
    • The diameter of the mass narrowed as it approached the adventitia, which was perforated, and the tumor was present at the deep margin.
    • The adventitia contains the cartilaginous rings interconnected by connective tissue.
    • The adventitia is rich in collagen bundles, and contains some cells that may be fibroblasts or macrophages.
    • A similar sheet of human fibroblasts was wrapped around the media to provide the adventitia.
    • Veins typically have 3 layers: tunica intima, media, and adventitia.
    • The images span the entire thickness of the vascular wall from the intima to the adventitia.

Derivatives

  • adventitial

    • adjective
    • Aneurysmal development is caused by weakness in the muscular tunica media and stretching of the tunica intima and adventitial layers.
      Example sentencesExamples
      • The walls are occasionally thickened by adventitial fibrosis.
      • Nourishment is provided to the vein wall by vasovasora, which enter through the adventitial layer.
      • The inclusions may also be found in the adventitial cells of blood vessels.
      • Intimai proliferation and adventitial thickening may further reduce the cross-sectional area of the pulmonary vascular bed.

Origin

Late 19th century: shortening of modern Latin tunica adventitia 'additional sheath'.

Definition of adventitia in US English:

adventitia

nounˌadvenˈtiSH(ē)ə

  • The outermost layer of the wall of a blood vessel.

    外膜，动脉外膜

    Example sentencesExamples
    • It diffusely replaced and expanded the adventitia of the aorta.
    • The submucosa, muscularis propria and adventitia of the esophagus were normal.
    • The images span the entire thickness of the vascular wall from the intima to the adventitia.
    • The diameter of the mass narrowed as it approached the adventitia, which was perforated, and the tumor was present at the deep margin.
    • A similar sheet of human fibroblasts was wrapped around the media to provide the adventitia.
    • The adventitia is a dense collagenous tissue that merges with the adventitia of the bladder and rectum and is highly vascular.
    • These neuroendocrine tumors arise from the adventitia of the jugular bulb or the neural plexus within the middle ear space.
    • The adventitia contains the cartilaginous rings interconnected by connective tissue.
    • Veins typically have 3 layers: tunica intima, media, and adventitia.
    • The arteries were most susceptible, with bruising of the intima and adventitia and separation of the media from the vessel walls.
    • This xanthogranulomatous tissue involved the adventitia of large-caliber vessels and infiltrated the atrial myocardium.
    • The perimeters of the airway lumen and of the adventitia subtended two areas.
    • There is an intense inflammatory reaction concentrated primarily in the adventitia of this blood vessel with some extension into the tunica media.
    • The outer layer of veins comprises the tunica adventitia.
    • They show a distinct so-called adventitia capillaris, a thin collagenous membrane, surrounding the endothelial tube.
    • The adventitia was stripped, and the endothelium was removed.
    • These are superficial lacerations of the intima that do not involve the media or adventitia.
    • The pathology findings consist of a cyst of gelatinous contents between the media and adventitia causing luminal compression.
    • With still greater increases in caliber, a distinct intima, media, and adventitia become recognizable.
    • The adventitia is rich in collagen bundles, and contains some cells that may be fibroblasts or macrophages.

Origin

Late 19th century: shortening of modern Latin tunica adventitia ‘additional sheath’.
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