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Biomedical subjects

F Preuss

Publications and source records attributed to F Preuss.

At least 19 recordsLinked to original sources
PubMed1996

[The anatomy of consciousness in domestic animals. Opening address of the 20th Congress of the EVVA in Zürich in memory of Eugen Seiferle].

All living organisms have a consciousness, not only humans. To seek to find humans' consciousness in animals is to seek wrongly. The question must be: "To what extent are prehuman and human consciousness comparable.' Animals have an instinctive sensational consciousness with a partial learning consciousness. It is a purely self-sustaining consciousness. In addition, humans have a spiritual-thinking consciousness, which is predominantly a learning consciousness and is not a pure self-sustaining consciousness. Since human consciousness arose from animals' consciousness, that behaviour in animals which is similar to the thought process in human beings can only be based on sensations. Sensations of pain and fear are not very different in man and animal, because they also belong to the sensation consciousness in humans, but humans have the additional advantage of being able to think about them and to understand their cause and meaning. That is not possible in animals, therefore, animals have to be anaesthetized to protect them from pain. Seiferle recognized this clearly, and my consciousness theory reinforces Seiferle's view, i.e. that consciousness is the central force of the soul. Its afferent forces are perception and sensation; its efferent forces are will, feeling, and deed.

Animals↗
PubMed1983

[Programmed and programming embryogenesis using as example the egg tooth of Sauropsids].

Molecular genetics don't explain the behaviour of cells. It is well known, however, that changes in behaviour precede changes of genetic manifestation. Since only soma cells are working onto-genetically throughout life, they should be thought capable of evolutionary functions. Their precedence is possible because of their surplus of genetic outfit, and the soma cells even must precede from the zygote stage on when their "struggle for life" starts. This notion of Darwin ("struggle for life") should therefore be more emphasized as motor force than his other 2 notions: "variation" and "selection". The phylogenetic development of the egg-tooth of sauropsids is taken as an example for this change-over in evolutionary theorization.

Animals↗
PubMed1979

Comprehensive schemata on the histology of the liver with consequences in terminology.

New schemata of the liver are presented to discuss the combination of the three kinds of liver lobules known until today in a chalk-talk-manner. Terminology is also discussed. Further investigations are needed involving the construction and the vascular pattern of compound lobules of the three individial lobules of the liver in different species.

Liver↗
PubMed1978

[Testis and ovary in a didactic histological and terminological comparison].

The so-called sex glands are not glands but germ hives. The germ cells are surrounded by nurse cells which alone build the tubulus or follicle epithelium (spermio- and oonutricytes). In the testis there is being differentiated between intra- and extratubular blood-germ cell barriers. The sperm cells should ultimately be called spermiocytes, the egg cells no longer be confused with the egg. The 4 germ cell generations and their 4 developmental phases in both organs are compared point by point. The interstitial cells are named andro- and gynocytes for considered reasons. The search for suitable names promotes knowledge and teaching.

Cell Differentiation↗
PubMed1975

[No corpora sesamoidea laryngis in man and animal].

The fact that the Corpora sesamoidea have never been precisely defined has led to a series of small cartilaginous bodies in the larynx being thus designated, for want of a better solution. Since the corpora sesamoidea have been identified as capsular bodies, however, originating in or in connection with a synovial capsule, there remained only one laryngeal cartilage which appeared to fulfill all the criteria of sesamoid cartilage, namely the papilionaceous cartilage found in all alar species from Monotremata to Carnivora, and which comparative anatomists term proarytaenoid cartilage. If Goeppert's findings are regarded as having an additional functional significance, then it is clear that this cartilage too, like cartilagines interarytaenoidea, postarytaenoidea (dorsoarytaenoidea in the dog?) pararytaenoidea, cunciformis, corniculata, intercorniculata and triticea, is a connecting cartilage.

Animals↗