RESUMEN
The surface pattern of the large intestine mucosa (caecum and colon) of the rabbit was examined using scanning electron microscope (SEM), in stages ranging from 26 days of foetal to 24 days of post-natal life. It was composed of villi in the foetus and in 1-day-old rabbit. By the 16th day of life these villi were replaced by ridges.
Asunto(s)
Ciego/ultraestructura , Colon/ultraestructura , Animales , Animales Recién Nacidos/anatomía & histología , Ciego/embriología , Ciego/crecimiento & desarrollo , Colon/embriología , Colon/crecimiento & desarrollo , Mucosa Intestinal/ultraestructura , Microscopía Electrónica de Rastreo , Microvellosidades/ultraestructura , ConejosRESUMEN
The surface pattern of the stomach and the small intestine of the rabbit was examined using SEM in stages ranging from 26 day of foetal to 24 days of post-natal life. The stomach glands were evident in the late foetuses and became gradually deeper after birth. The villi of the small intestine appeared to have a gradual development during foetal and post-natal life, being short and thick with rounded tips during foetal life while becoming long, slender and finger-like with increasing age.
Asunto(s)
Envejecimiento/fisiología , Desarrollo Embrionario y Fetal/fisiología , Mucosa Gástrica/embriología , Mucosa Intestinal/embriología , Microvellosidades/ultraestructura , Animales , Duodeno , Mucosa Gástrica/crecimiento & desarrollo , Íleon , Mucosa Intestinal/crecimiento & desarrollo , Yeyuno , Microscopía Electrónica de Rastreo , ConejosRESUMEN
The distribution of alkaline phosphatase in normal duodenal, jejunal, ileal and large intestinal mucosa of the rabbit has been studied by histochemical method. New Zealand White rabbits were used ranging from 26-day-old foetuses to 43-day-old young and the findings of ALP-ase reaction are discussed and correlated in connection to age and change of nutrition.