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Possible “atavistic” structures in human aneuploids

Bibliographic Data

ID8316020
AuthorsM Ashraf Aziz (Howard University, corresponding author)
Year1981
Volume54
Issue3
Pages347-353
Publication date1981-03-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueAmerican Journal of Physical Anthropology (JOURNAL)
Journal identifiersISSN: 0002-9483 • E-ISSN: 1096-8644
PublisherWiley (PUBLISHER • GB)
DOI10.1002/ajpa.1330540308
PMID7234983
OpenAlexW2032079000
LanguageEN
Citations received2
References cited21

Comprehensive dissections of aneuploid (trisomy 18 and 13) neonates have revealed numerous supernumerary muscles that, although present in rare individuals, do not regularly occur in the human. These supernumerary muscles include: “platysma occipitalis,” “rhomboideus occipitalis,” “deltopectoral” complex, “latissimocondyloideus,” “pectorodorsalis,” “chondrohumeralis,” and “peroneus digiti quinti”; a few muscles, e.g., palmaris longus and brevis are lacking altogether. One specimen exhibited a “linguofacial trunk” arising from the external carotid artery. The supernumerary muscles found in these aneuploid specimens are regularly found in monkeys and sometimes in the great apes. It is suggested that these supernumerary muscles may be “atavistic” structures. Problems in establishing homologies between these muscles among primates are discussed, and mechanisms leading to the development of these muscles in human aneuploids are proposed

Biology · Supernumerary · Trunk · Anatomy · Cleft Lip and Palate Research · Craniofacial Disorders and Treatments · Fetal and Pediatric Neurological Disorders · Medicine

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    Open Access•M Ashraf Aziz, Samuel Strong Dunlap•Primates•1986

  • Forelimb anatomy of new world monkeys

    Open Access•S S Dunlap, Richard W Thorington et al.•American Journal of Physical…•1985

  • Yearbook of Physical Anthropology

    Open Access•John Buettner-Janusch•Anthropology News•1963

Unique citing works2
Citations per year0,05
Citation span1985 - 1986 (2)
Citation velocityhistorical
Highly citedNo
Citation typesNeutral: 1

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