The changes in the size of human oviduct and ovary after immersion in formalin (4%, 10%) were investigated. The results were as follows : 1. After fixation, the length of oviduct was significantly reduced to 93%, but the cross sectional area of oviduct was significantly increased. The length of oviduct showed no significant difference between 4% and 10% formalin. The length of ovarian ligament was also significantly reduced to 84% after fixation. 2. After fixation, the volume of oviduct was increased significantly and showed a difference between the two fixatives. The volume of oviduct in 4% formalin has increased to 107%, as compared to 103% increase in 10% formalin. 3. After fixation, the volume of ovary was increased significantly and showed a difference between the two fixatives. The volume of ovary in 4% formalin has increased to 109%, as compared to 103% increase in 10% formalin.
Animals ; Female ; Fixatives ; Formaldehyde* ; Humans* ; Immersion* ; Ligaments ; Ovary* ; Oviducts*

No abstract available.
Adult* ; Humans ; Musculocutaneous Nerve*

Changes in the state of water in senile cataractous lenses at the different stages of the maturation of cataract were investigated. Senile cataracts of 34 eyes were divided into 4 groups according to degree of lens opacity. Intracapsular cataract extraction was performed and wet weight, dry weight and water content of the cataractous lenses were measured. In incipient and immature cataract, wet weight was 197.4 +/- 20.6mg, dry weight 66.2 +/- 8.2mg and water content 130.6 +/- 15.2mg(66.2%). In mature and hyper mature cataracts, wet weight was 240.8 +/- 39.3mg, dry weight 53.4 +/- 8.3mg and water content 176.3 +/- 37.5mg(73.2%). Wet weight and water content were significantly increased and dry weight was significantly decreased with the maturation of cataract. Sexual differences of wet weight, dry weight and water content were not significant.
Cataract Extraction ; Cataract* ; Water*

A rare case in the pattern of the origin of the celiac artery was observed in the cadaver of a 64 year old Korean male and the results are summarized as follows. The superior mesenteric artery originated from the abdominal aorta at the level of the intervertebral dusk between first and second lumbar vertebra. At a point 4cm from the origin of the superior mesenteric arterr, a common trunk appeared and ran 1cm and then divided into the common hepatic artery and the splenic artery. The common hepatic artery divided into the right gastric artery and the proper hepatic artery at a point 4.5cm after the bifurcation. A common trunk formed by the left inferior phrenic artery and the lefts gastric artery arose from the abdominal aorta about 0.8cm about the origin of the celiacomesenteric trunk.
Aorta, Abdominal ; Arteries ; Cadaver ; Celiac Artery* ; Hepatic Artery ; Humans ; Male ; Mesenteric Artery, Superior ; Spine ; Splenic Artery

No abstract available.
Appendix* ; Fetus*

No abstract available.
Hypoxia-Ischemia, Brain*

No abstract available.

No abstract available.
Adult* ; Fetus* ; Humans ; Humerus* ; Radius* ; Ulna*

Changes in the number, the immunoreactivities and the ultrastructures of sero- tonin immunoreactive mucosal mast cells[MMCs] in rat gastrointestinal tracts after vagus nerve stimulation were investigated by using light and electron microscopic immunocytochemical methods. The vagus nerves were electrically stimulated with a square wave pulse generator for a duration of 5 minutes each, a total of 8 times at 2 minute intervals. Serotonin immunoreactive cells of the connective tissues of the gastrointestinal tract were mainly located in the lamina propria, and a small number of the cells were also scattered in the submucosa. By using electron microscopic immunocytochemistry and Wright stain, the serotonin immunoreactive cells of the lamina propria and the submucosa were identified to be MMCs. A few large-sized serotonin immunoreactive connective tissue mast cells [CTMCs], showing strong metachromasia with the Wright stain, were located together with the MMCs in the submucosa of the stomach. In most of the gut regions of the control group, the majority of the MMCs did not show any serotonin immunoreactivities and only a few MMCs showed weak serotonin immunoreactivities. After stimulation of the vagus nerves, the number and the immnu- noreactivities of the serotonin immunoreactive MMCs dramatically increased in all gut regions observed, especially in the small intestines. In the samples treated with the electron microscopic immnunocytochemical methods, hardly any serotonin immunoreactivities were detected in the MMCs of the control group. However, the serotonin imrnunoreactivities of the MMCs were significantly increased after vagus nerve stimulation. The serotonin immnunoreactive products were localized, following vagal stimulation, both in the peripheral matrix of the granules and in the cytoplasm. Also, it was confirmed ultrastructurally that the Golgi complexes were expanded in the MMCs of the vagal stimulation group. The above results suggest that vagus nerve stimulation may activate serotonin biosynthesis in MMCs.
Animals ; Connective Tissue ; Cytoplasm ; Gastrointestinal Tract* ; Golgi Apparatus ; Immunohistochemistry ; Intestine, Small ; Mast Cells* ; Mucous Membrane ; Rats* ; Serotonin* ; Stomach ; Vagus Nerve Stimulation* ; Vagus Nerve*

This study was undertaken to investigate the ultrastructure of the neurons, neuroglial cells and capillaries in the area postrema[AP] of the Oriental discolured bat, Vespertilio superans. The AP of the bat was a single midline structure at the most caudal portion of the fourth ventricle. Most neurons in the AP were small cells, but their ultrastructure were similar to the typical neurons located elsewhere in the central nervous system. Astroglial cells and oligodendrocytes were also observed and showed their typical ultrastructure. Ultrastructural features of neurons, astroglial cells and oligodendrocytes were not changed during hibernating cycles. However, microglial cells were only found in the hibernating AP ; these cells were located in the parenchyma and near the blood vessels of the AP. Since the microglial cytoplasm was filled with phagocytotic inclusions, the nuclei of the these cells were eccentrically located. Phagocytotic cytoplasmic inclusions were shown to be composed of a dense irregular peripheral region and the pale round central region. A Large vacant space was often found in the electron lucent central region. Continuous and fenestrated capillaries surrounded by pericytes were found in the bat`s AP. Especially, Phagocytotic inclusions were found in the pericyte cytoplasm of the hibernating AP, and this result supports suggestion that pericytes might be phagocytotic cells. On the basis of the distributions of phagocytotic tells[pericytes and microglial cell], ultrastructure of these cells, morphology of their cytoplasmic inclusions, and the appearance of phagocytotic activity of the pericytes during the hibernating stage when microglial cells were observed, it can be concluded that pericytes may also participates in the formation of rrlicroglial cells. Tanycytes were also found in the bat AP.
Area Postrema* ; Blood Vessels ; Capillaries ; Central Nervous System ; Cytoplasm ; Ependymoglial Cells ; Fourth Ventricle ; Inclusion Bodies ; Microglia ; Neuroglia ; Neurons ; Oligodendroglia ; Pericytes