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  • 1
    Electronic Resource
    Electronic Resource
    An accessory belly of the abductor digiti minimi muscle: a case report and embryologic aspects (2000)
    Springer
    Surgical and radiologic anatomy 22 (2000), S. 51-54 
    Details
    ISSN: 1279-8517
    Keywords: Abductor digiti minimi muscle ; Accessory belly ; Variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Accessory fasciculi of the hypothenar muscles have been involved in vascular and nerve compressions. During a routine dissection an accessory belly of the abductor digiti minimi muscle arising from the tendon of the palmaris longus muscle was found in the lower third of the forearm. The accessory fasciculus ran through Guyon’s canal enclosing the ulnar nerve and vessels. It was attached by means of two tendons where the fibres of the abductor digiti minimi muscle ended in a single pennate form. This anatomic variation was associated with a marked reduction of the caliber of the fourth tendon of the flexor digitorum superficialis muscle and a split of the median nerve. The nerve supply arose from the ulnar nerve. A fibrous band originating from this accessory muscular belly was found covering the median nerve. Based on the development of muscles and fibrous structures within the hand and forearm, as well as on our results, we consider the present anomalies as an unusual persistence of an undifferentiated group of mesenchymal cells. These belong to the superficial muscular anlagen layer of the hand, just between the flexor digitorum superficialis muscle blastema (which has the capacity of migration) and that for the abductor digiti minimi muscle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00276-000-0051-1
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The arterial supply of the human spinal cord: A new approach to the arteria radicularis magna of Adamkiewicz (1991)
    Springer
    Acta neurochirurgica 109 (1991), S. 57-62 
    Details
    ISSN: 0942-0940
    Keywords: Arteria radicularis magna ; Adamkiewicz's artery ; thoraco-lumbar region ; spinal cord ; vascular anatomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The arteria radicularis magna (Adamkiewicz's artery) was studied in 30 human spinal cords after arterial injection. The artery was present in all cases, between T 8 and L 2, and was identified by its diameter and position. The arteria radicularis magna was the main blood supply to the lowest region of the spinal cord. In one out of three cases it accompanied the ventral root at T9, and in 80% of the cases studied it was found on the left side. The arteria radicularis magna had a posterior component in 63% of the cases. We did not observe specific radiculo-medullary arteries in the conus medullaris region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01405699
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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