Fasciculation of the motor axons in the medial and lateral
roots of the human median nerve

J 1997

Fasciculation of the motor axons in the medial and lateral roots of the human median nerve

DUBOVÝ, Petr, Radim JANČÁLEK and Pavel HANINEC

Basic information

Original name

Fasciculation of the motor axons in the medial and lateral roots of the human median nerve

Name in Czech

Fascikulace motorických axonů mediálního a laterálního kořene lidského nervus medianus

Authors

DUBOVÝ, Petr (203 Czech Republic, guarantor), Radim JANČÁLEK (203 Czech Republic) and Pavel HANINEC (203 Czech Republic)

Edition

Scripta medica, Brno, Lékařská fakulta Masarykovy univerzity, 1997, 1211-3395

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30000 3. Medical and Health Sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14110/97:00028125

Organization unit

Faculty of Medicine

Keywords in English

Image analysis; Non-specific cholinesterase; Peripheral nerve

Abstract

ORIG CZ

V originále

An improvement of reconstructive operations of the brachial plexus requires knowledge of motor and somatosensory axon fasciculation in the proximal parts of peripheral nerves. In the present paper we describe a fasciculation of the motor axons in the lateral and medial roots of the human median nerve. The lateral and medial roots including a short segment of the median nerve were removed from a cadaver (a woman of the age of 38 years) 6 hours post mortem and fixed in Zamboni's fixative solution. The roots were divided into seven 1 cm long segments in a proximal-to-distal direction (segments 1-7). A segment of the median nerve close to its joint from the roots was examined, too. The motor axon detection was based on their high acetylcholinesterase activity content determined by the histochemical method. The motor axon distribution was observed in a light microscope and evaluated by means of an image analysis system equipped with a CCD camera and a computer equipped with VideoTip 2.0 software (Tescan, Brno, Czech Republic). The human lateral and medial roots of the median nerve are polyfascicular with a monofascicular segment. The lateral root contained a monofascicular segment about 1 to 2 cm from the joint with the medial root. A similar monofascicular segment was found immediately close to the joint of roots. The monofascicular segments containing dispersed motor nerve fibres are very suitable points for reconnections during microsurgical reconstruction oft he brachial plexus. Analysis of the first proximal segment in the median nerve revealed that the dominant motor contribution was from the lateral root.

In Czech

Fascikulizace motoricých axonů byla studována histochemicky pomocí nespecifické cholinesterázy.

Links

IZ2605, research and development project

Name: Alternativní metody překonávání defektu poškozeného nervu

Investor: Ministry of Health of the CR, Alternative methods for gap reconstruction of injured periferal nerves

Citovat

DUBOVÝ, Petr, Radim JANČÁLEK and Pavel HANINEC. Fasciculation of the motor axons in the medial and lateral roots of the human median nerve. Scripta medica. Brno: Lékařská fakulta Masarykovy univerzity, 1997, vol. 70, 2-3, p. 123-130. ISSN 1211-3395.

@article{192500,
   author = {Dubový, Petr and Jančálek, Radim and Haninec, Pavel},
   article_location = {Brno},
   article_number = {2-3},
   keywords = {Image analysis; Non-specific cholinesterase; Peripheral nerve},
   language = {eng},
   issn = {1211-3395},
   journal = {Scripta medica},
   title = {Fasciculation of the motor axons in the medial and lateral roots of the human median nerve},
   volume = {70},
   year = {1997}
}

TY  - JOUR
ID  - 192500
AU  - Dubový, Petr - Jančálek, Radim - Haninec, Pavel
PY  - 1997
TI  - Fasciculation of the motor axons in the medial and lateral roots of the human median nerve
JF  - Scripta medica
VL  - 70
IS  - 2-3
SP  - 123
EP  - 123
PB  - Lékařská fakulta Masarykovy univerzity
SN  - 12113395
KW  - Image analysis
KW  - Non-specific cholinesterase
KW  - Peripheral nerve
N2  - An improvement of reconstructive operations of the brachial plexus requires knowledge of motor and somatosensory axon fasciculation in the proximal parts of peripheral nerves. In the present paper we describe a fasciculation of the motor axons in the lateral and medial roots of the human median nerve. The lateral and medial roots including a short segment of the median nerve were removed from a cadaver (a woman of the age of 38 years) 6 hours post mortem and fixed in Zamboni's fixative solution. The roots were divided into seven 1 cm long segments in a proximal-to-distal direction (segments 1-7). A segment of the median nerve close to its joint from the roots was examined, too. The motor axon detection was based on their high acetylcholinesterase activity content determined by the histochemical method. The motor axon distribution was observed in a light microscope and evaluated by means of an image analysis system equipped with a CCD camera and a computer equipped with VideoTip 2.0 software (Tescan, Brno, Czech Republic). The human lateral and medial roots of the median nerve are polyfascicular with a monofascicular segment. The lateral root contained a monofascicular segment about 1 to 2 cm from the joint with the medial root. A similar monofascicular segment was found immediately close to the joint of roots. The monofascicular segments containing dispersed motor nerve fibres are very suitable points for reconnections during microsurgical reconstruction oft he brachial plexus. Analysis of the first proximal segment in the median nerve revealed that the dominant motor contribution was from the lateral root.
ER  -

DUBOVÝ, Petr, Radim JANČÁLEK and Pavel HANINEC. Fasciculation of the motor axons in the medial and lateral roots of the human median nerve. \textit{Scripta medica}. Brno: Lékařská fakulta Masarykovy univerzity, 1997, vol.~70, 2-3, p.~123-130. ISSN~1211-3395.

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