The myodural bridge of the American alligator (Alligator mississippiensis) alters CSF flow.
J Exp Biol
; 223(Pt 22)2020 11 23.
Article
em En
| MEDLINE
| ID: mdl-33077640
ABSTRACT
Disorders of the volume, pressure or circulation of the cerebrospinal fluid (CSF) lead to disease states in both newborns and adults; despite this significance, there is uncertainty regarding the basic mechanics of the CSF. The suboccipital muscles connect to the dura surrounding the spinal cord, forming a complex termed the 'myodural bridge'. This study tests the hypothesis that the myodural bridge functions to alter the CSF circulation. The suboccipital muscles of American alligators were surgically exposed and electrically stimulated simultaneously with direct recordings of CSF pressure and flow. Contraction of the suboccipital muscles significantly changed both CSF flow and pressure. By demonstrating another influence on CSF circulation and pulsatility, the present study increases our understanding of the mechanics underlying the movement of the CSF.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Jacarés e Crocodilos
Limite:
Adult
/
Animals
/
Humans
/
Newborn
Idioma:
En
Revista:
J Exp Biol
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Estados Unidos