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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Differentiation of the Parietal and Chief Cells in Stomach of the Foetal Pig) ผู้เขียน: Nati Nilnophakoon สื่อสิ่งพิมพ์:pdf AbstractThe differentiation of the parietal and chief cells of the gastric mucosa has been studied with histological methods in the foetal pig at different stages of development. The first differentiation of partietal cell was found in a foetus at 6 cm CRL, which corresponds to an age of about 5 weeks, whereas the chief cell was observed at 16 cm CRL at the age of about 9 weeks. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Relation of Paralumbar Nerves and Conus Medullaris to the Vertebrae of Swamp Buffaloes) ผู้เขียน: ดร.ณรงค์ จึงสมานญาติ, รองศาสตราจารย์ , ดร.วรวุฒิ ฤกษ์อำนวยโชค, รองศาสตราจารย์ , Nati Nilnophakoon สื่อสิ่งพิมพ์:pdf AbstractThe last thoracic (T13) and the first three lumbar spinal nerves (L1-L3) of the 20 adult swamp buffaloes specimens were dissected and observed the relation of their crossing to the tip of transverse processes of first five lumbar vertebrae (TL1-TL5). Their dorsal and ventral branches crossed obliquely caudolaterally on the dorsal and ventral surface of the lumbar transverse processes, respectively. The T13 crossed the anterior border of TL1 tip (20 specimens). Most of L1 (8 specimens and two of the right side) crossed the posterior border of TL2 tip. The L1 of 6 specimens crossed the anterior border of TL3 tip. Some variations of L1 crossed the anterior border of TL2 tip and the posterior border of TL3 tip. The L2 crossed the anterior (10 specimens and one of the right side) and the posterior (7 specimens) border of the TL4 tip, and a few specimens variably crossed the posterior border of TL3 tip. Most of ventral branch of L3 were lining caudolaterally under psoas muscles. The ventral branch of L3 in some specimens (4 specimens and two of only right and left side) have a branch on the dorsal surface of the psoas muscles and crossed the posterior border of TL5 tip. The conus medullaris of spinal cord of all specimens were taper to filum terminale at the caudal part of the first sacral vertebra. This study showed the variation in the course of the lumbar spinal nerves. It might be recommended that the effective paravertebral anesthesia nerve blocks in swamp buffaloes will be injected to the tip of the first five lumbar transverse processes, and infiltrated to anterior and posterior of them for the last thoracic and the first three lumbar spinal nerves blocks, respectively. The epidural anesthesia in swamp buffaloes will be safe for the spinal cord by injection at sacrococcygeal foramen since the spinal cord is taper to filum terminale in the first sacral vertebra. |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effects of a-Chlorohydrin on the Reproductive Organs of the Male Dog 1. Histopathological Changes of the Testis and the Initial Segment of Epididymis ) ผู้เขียน:Nati Nilnophakoon, นายสมชัย พงศ์จรรยากุล, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractSixteen stray dogs were castrated (Hemicastration). The testis and epididymis were examined in order to investigate the normal conditions under the light microscopy. After these dogs were healthy, they were injected with a single dose of a-chlorohydrin (3-chloropropane-1, 2-diol) 100 mglkg b.w. subcutaneously. Testis and epididymis of each couple of the sixteen dogs were removed at different times following the injection-1, 2 and 3 days; 1, 2 and 4 weeks; 2 and 3 months, respectively. The histopathological lesions revealed that the epithelial cells of the seminiferous tubules and the initial segment of epididymis were damaged and degenerated after 1 day of treatment. Tremendous degeneration was observed at 3 days. However, the regeneration of the epithelial cells occurred within 1 week and appeared to be normal phenomena in all dogs after 1 week to 3 months of the experiment. By this preliminary investigation, a single dose of 100 mglkg body wt. of a-chlorohydrin injected subcutaneously had shown to be a temporary inhibition of spermatogenesis. |