Hox-A2 protein expression in mouse embryo middle ear ossicles
نویسندگان
چکیده
منابع مشابه
CT of the normal suspensory ligaments of the ossicles in the middle ear.
PURPOSE To establish the range of normal variation in the CT appearance of the middle ear ligaments and the stapedius tendon as an aid in detecting abnormal changes in these structures. METHODS CT scans of the temporal bone in 75 normal middle ears, obtained with 1-mm-thick sections, were reviewed by two observers, who rated the visibility of the structures of interest on a scale of 1 to 5. ...
متن کاملDevelopment of the dynamic structure (force lines) of the middle ear ossicles in human foetuses.
OBJECTIVES To study the ontogenic development of the organisation of the human middle ear ossicles structure. MATERIAL AND METHODS 46 human temporal bones of ages varying from 32 days post-conception to newborns. RESULTS The development of the structural organisation of the malleus begins at 16 weeks via two cortical fascicles situated in the neck; at 21 weeks they extend towards the head, ...
متن کاملVisualization of Middle Ear Ossicles in Elder Subjects with Ultra-short Echo Time MR Imaging
PURPOSE To evaluate the visualization of middle ear ossicles by ultra-short echo time magnetic resonance (MR) imaging at 3T in subjects over 50 years old. MATERIALS AND METHODS Sixty ears from 30 elder patients that underwent surgical or interventional treatment for neurovascular diseases were included (ages: 50-82, median age: 65; 10 men, 20 women). Patients received follow-up MR imaging inc...
متن کاملAnatomical and morphometrical study of middle ear ossicles in 2 to 3-month-old Makouei sheep fetuses
The middle ear ossicles are important due to transmission of sound to the inner ear leading to sound understanding. The aim of present study was to determine the anatomical and morphometrical aspects of middle ear ossicles in Makouei sheep fetuses. For this experimental study, eight sheep fetuses at the age of 2 to 3 months were provided from public slaughterhouse; their middle ear ossicles wer...
متن کاملA new developmental mechanism for the separation of the mammalian middle ear ossicles from the jaw
Multiple mammalian lineages independently evolved a definitive mammalian middle ear (DMME) through breakdown of Meckel's cartilage (MC). However, the cellular and molecular drivers of this evolutionary transition remain unknown for most mammal groups. Here, we identify such drivers in the living marsupial opossum Monodelphis domestica, whose MC transformation during development anatomically mir...
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ژورنال
عنوان ژورنال: Morphologie
سال: 2018
ISSN: 1286-0115
DOI: 10.1016/j.morpho.2018.09.002