RESUMO
Two hundred eleven adult scapulae were examined and quantitative data pertaining to the dimensions of the suprascapular notch were obtained. Six types of suprascapular notch were observed. Transitions tended to occur between Types II, III, and IV. A classification function was developed utilizing the measured values of the dimensions of the suprascapular notch, which might help in assigning the scapulae to these transitional types. Dissections of the suprascapular area were performed in 15 cadavers. Static and dynamic relationships of the suprascapular nerve to the suprascapular foramen were examined.
Assuntos
Síndromes de Compressão Nervosa/etiologia , Escápula/anatomia & histologia , Adulto , Antropometria , Humanos , Estudos Prospectivos , Escápula/inervaçãoAssuntos
Gambás/anatomia & histologia , Teto do Mesencéfalo/anatomia & histologia , Animais , Mapeamento Encefálico , Tronco Encefálico/anatomia & histologia , Diencéfalo/anatomia & histologia , Corpos Geniculados/anatomia & histologia , Bulbo/anatomia & histologia , Mesencéfalo/anatomia & histologia , Degeneração Neural , Vias Neurais/anatomia & histologia , Neurônios Eferentes/anatomia & histologia , Nervo Oculomotor/anatomia & histologia , Nervo Óptico/anatomia & histologia , Ponte/anatomia & histologia , Núcleo Rubro/anatomia & histologiaAssuntos
Núcleos Cerebelares/anatomia & histologia , Ouriços/anatomia & histologia , Animais , Ventrículos Cerebrais/anatomia & histologia , Colículos Inferiores/anatomia & histologia , Vias Neurais , Neurônios Eferentes , Núcleo Rubro/anatomia & histologia , Formação Reticular/anatomia & histologia , Colículos Superiores/anatomia & histologia , Núcleos Talâmicos/anatomia & histologia , Núcleos Vestibulares/anatomia & histologiaAssuntos
Ovinos/anatomia & histologia , Medula Espinal/anatomia & histologia , Nervo Trigêmeo/anatomia & histologia , Animais , Tronco Encefálico/anatomia & histologia , Feminino , Congelamento , Lateralidade Funcional , Técnicas Histológicas , Mesencéfalo/anatomia & histologia , Degeneração Neural , Vias Neurais/anatomia & histologia , Formação Reticular/anatomia & histologia , Coloração e RotulagemAssuntos
Barreira Hematoencefálica/efeitos dos fármacos , Córtex Cerebral/metabolismo , Soluções Hipertônicas/farmacologia , Peroxidases/metabolismo , Sacarose/farmacologia , Absorção , Equilíbrio Ácido-Base , Animais , Artérias/metabolismo , Membrana Basal , Endotélio , Espaço Extracelular/metabolismo , Histocitoquímica , Corpos de Inclusão , Junções Intercelulares , Masculino , Microscopia Eletrônica , Músculo Liso/metabolismo , Neuroglia/metabolismo , Concentração Osmolar , Pinocitose , Plantas , Ratos , Ratos EndogâmicosRESUMO
The effects of ischemia, induced by a tourniquet, were investigated on 36 adult Holtzman female rates in terms of damage to the ventral horn cell of the spinal cord and tibial nerve and motor end-plate degeneration and regeneration. Clinically, the rats were tested for sensory and motor loss and recovery and these results were compared with the histological findings. Ischemic periods of 2, 4, 6, and 8 hours were used followed by survival times of 3 weeks to 9 months. Histologically, there was degeneration and regeneration found to varying degrees in the nerve and motor end-plate. There were no changes found in the ventral horn cell. There was a loss of pain sensation in all animals, except the 2 hour group, and a loss of motor function. Motor function, preceded by sensation, returned in all animals. With the absence of ventral horn cell damage it was not surprising to find adequate regeneration histologically and, therefore, a return of both sensory and motor function.