Biomedical subjects

H Wakuri

Publications and source records attributed to H Wakuri.

At least 37 records · Page 2Linked to original sources

PubMed1990

Cleavage line patterns of the skin in the horse.

In 6 equine specimens of both sexes, the morphological features of the cleavage lines of the skin over the entire body were examined using a metal probe with a sharp conical point. Wounds were produced on the skin with the probe and painted with Chinese white or Indian ink. The direction of running of the cleavage lines was determined from their relationship to the long axis of each region or area of the physical structure. The cleavage lines of the head and face revealed a fixed pattern in all specimens. They were similar to those of equine fetuses of 6 to 7 months of age. A transverse pattern was found on the skin of the neck, trunk (abdomen), roots of the ear and tail, and external genital labium, except in some localized areas. The cleavage lines of the free extremities of the appendages already displayed a strikingly longitudinal pattern. A horizontal pattern was found in the middle costal region. It was clearer in the adult horse than in the equine fetus. The cleavage lines were annular in arrangement on the skin around the nares, eyes, and preputial orifice. They showed a convergent pattern on the skin of the metacarpal and metatarsal calcars, the umbilicus and anus. Some aspects of the skin tension were compared between the horse and certain other animals.

Age Factors↗

PubMed1990

New concepts and prospects for unity of anatomy.

Anatomy has accumulated a vast amount of morphological data of the body. In addition, anatomy has long an aggregate of sharply subdivided specialities. Re-organization and systematic integration of the knowledge across these subdivisions with the aim of attaining a more comprehensive approach is not an easy task because of the continued predominance of analytical principles and the deep-rooted academic inclination toward analysis. Despite these difficulties, I have endeavored to formulate a framework for unity of anatomy (Re-arranged comprehensive anatomy). A book of anatomy in a wide sense, in which macroscopic, microscopic, and developmental anatomy of the body are incorporated in one volume, would be of great convenience. Establishment of new concepts of organology as well as profound thinking over the shape and the structure is an urgent task for remodelling of anatomy into a more integrated science.

Anatomy↗

PubMed1989

Histological studies on the endocrine pancreas in the dog.

Based on histological structure and cellular formation, the endocrine pancreas (pars endocrina pancreatis) (PEP) or pancreatic islet (insulae pancreaticae), was divided into two types in the dog. One type of PEP was the islet of Langerhans. In the glandular lobule, the islet was surrounded by exocrine acini. The other type of PEP, in general, exhibited a feature of a neuro-insular complex. It was found within the interlobular connective tissue of the pancreas. This type of PEP was attached to a nerve bundle or ganglion. In the pancreas of the immature dog, a large population of endocrine cells was recognized to form a blood islet within the neuro-insular complex.

Animals↗

PubMed1989

Early organogenesis of the caprine stomach.

Early organogenesis of the caprine stomach was studied in a series of 11 embryos ranging from 6.5 mm neck-rump length (NRL) to 13.3 mm crown-rump length (CRL). In embryos with 6.5-6.7 mm NRL, a part of the primordial proper esophagus extended to the dorsal side of the primordial stomach. The primordial proper esophagus and its extension were lined with a simple epithelium and stained dark brown with Con A III, while the primordial stomach was weakly stained. In embryo with 7.3 mm NRL, the esophageal extension was separated from the proper esophagus by constriction, and became a primordial forestomach situated in an area outside the omental sac. In embryos with 8.3 mm NRL-10.7 mm CRL, primordial forestomach and primordial stomach were united and formed a spindle shaped primordial ruminant stomach with foregut rotation. The primordial ruminant stomach was similar to the primordial simple stomach except that it was more flattened laterally with the convex at the area of 'lesser curvature'. Primordial rumen, omasum and abomasum appeared from the spindle shaped primordial ruminant stomach in an embryo with 12.9 mm CRL. In an embryo with 13.3 mm CRL, primordial reticulum originated from an area between the primordial rumen and omasum.

Animals↗

PubMed1988