title: An unusual elbow muscle in the red howler monkey: does it deserve invention of a new name musculus contrahens cubiti?
metadata.name: dc.contributor.author
metadata.value: Novikova, Mellin
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Kuznetsov, Alexander
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2017-05-15T11:44:22Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2017-05-15T11:44:22Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2017-03
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Novikova, M. and Kuznetsov, A. 2017. An unusual elbow muscle in the red howler monkey: does it deserve invention of a new name musculus contrahens cubiti? Bio. Comm. 62(1): 38–47.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: 10.21638/11701/spbu03.2017.105
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/6289
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: During dissection of a juvenile specimen of howler monkey (Alouatta seniculus),
  we discovered a supernumerary muscle. This muscle originates from the lateral
  epicondyle of the humerus, distal to the m. brahioradialis and beneath the m. extensor
  carpi radialis longus, and runs deeply to insert on the proximal part of the radius
  adjacent to the m. supinator.
  To determine homology of the unusual muscle, we compared it with the known
  abnormal extra muscles in the group of preaxial forearm extensors in humans and
  other primates, as well as other mammals. The only similar muscle is the so-called
  m. brachioradialis accessorius, which is very rarely found in humans medial to the
  n. radialis r. superficialis. Both in howlers and humans, its unique topological interrelations
  with the n. radialis suggest that this muscle is fundamentally different from all
  surrounding forearm extensors including the proper m. brachioradialis. At the same
  time, its innervation by the n. radialis confirms that it is a true extensor, contrary to
  the reptilian m. tractor radii.
  The general problem of identifying homology of anomalies and novelties is
  considered. As the enigmatic muscle departs from rules of myological architecture
  of the tetrapod forelimb, we failed to establish its general homology and, instead,
  suggest naming it as m. contrahens cubiti. This means that the muscle acts as the
  elbow flexor although it intimately belongs to extensors.
metadata.lang: en_GB
metadata.name: dc.description.sponsorship
metadata.value: The work was supported by the Russian
  Foundation for Basic Research (grant no. 15-04-
  05049-a). The funders had no role in study design,
  data collection and analysis, decision to publish, or
  preparation of the manuscript.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: en
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Biological Communications;Volume 62; Issue 1
metadata.lang: -
metadata.name: dc.subject
metadata.value: general homology problem
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: anomaly
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: forearm extensor muscles
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: brachioradialis
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: primates
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: Alouatta
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: An unusual elbow muscle in the red howler monkey: does it deserve invention of a new name musculus contrahens cubiti?
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 05-Novikova.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/6289/1/05-Novikova.pdf
resources.format: Adobe PDF
resources.size: 4,04 MB