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Biomedical subjects

M Holtzmann

Publications and source records attributed to M Holtzmann.

4 recordsLinked to original sources

[Comparison of the histologic structure of the compact bone of the long hollow bones of mouse, hamster, rat, guinea pig, rabbit, cat, and dog during development].

This paper reports on histological examinations of the diaphyseal structure of the long bones (humerus, radius, ulna, os femoris and tibia) of mouse, hamster, rat, guinea pig, rabbit, cat, and dog using six animals in three different age groups. There are considerable differences in structure between the species. The results show that with increasing height in the evolution of the species and period of life, as well as advancing age, the differentiation and complexity of bone structures increases. The differences in structure between the localization of bones within the individual species are not considerable. The species comparison results in great similarities between the bone structures of each of mouse and hamster, of rat and guinea pig, as well as of cat and dog. The bone structure of the animals examined becomes more similar to the human structure from mouse, hamster, rat, guinea pig, rabbit, and cat to dog.

Animals↗

[On the occurrence of blood vessels in the superficial layers of articular cartilage in bovine fetuses].

The occurrence of vascular networks in the superficial layers of articular cartilage of 51 bovine fetuses (10-93 cm CRL) and 3 calves was studied grossly and histologically. The networks were found regularly on the incisura trochlearis of the ulna, on the trochlea of the radius and talus, on the plantar articular surface of the head of the talus, on the proximal articular surface of the fused central and 4th tarsal bones, and less regularly on the articular surfaces of the distal phalanx and distal sesamoid (navicular) bone and on the cochlea of the tibia. The vessels coursed in the superficial stratum of the articular cartilage and were encountered in those places where synovial fossae or villi are found later. The vessels were not present in the calves.

Animals↗