Biomaterial Database

[Morphometric Investigations of Regularly Descended Testicles of Children (author's transl)]. 1977

B Kleinteich, and H Schickedanz

On 89 regularly descended, autoptically obtained testicles, the following morphometric investigations were performed: Calculations of the volums, the mean diameter of the tubuli seminiferi, the total lenght of the tubuli, the mean content of spermatogonia per cross section of one tubulus seminiferus, and the total number of spermatogonia. The testicles evaluated have been obtained from children at the age of one day to fourteen years. The calculation of normal values of quantitatively assessed testicle structures are of fundamental importance for the estimation of the morphological significance of congenitally dystopic testicles.

UI	MeSH Term	Description	Entries
D007223	Infant	A child between 1 and 23 months of age.	Infants
D007231	Infant, Newborn	An infant during the first 28 days after birth.	Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008297	Male		Males
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000886	Anthropometry	The technique that deals with the measurement of the size, weight, and proportions of the human or other primate body.
D012671	Seminiferous Tubules	The convoluted tubules in the TESTIS where sperm are produced (SPERMATOGENESIS) and conveyed to the RETE TESTIS. Spermatogenic tubules are composed of developing germ cells and the supporting SERTOLI CELLS.	Seminiferous Tubule,Tubule, Seminiferous,Tubules, Seminiferous
D013093	Spermatogonia	Euploid male germ cells of an early stage of SPERMATOGENESIS, derived from prespermatogonia. With the onset of puberty, spermatogonia at the basement membrane of the seminiferous tubule proliferate by mitotic then meiotic divisions and give rise to the haploid SPERMATOCYTES.	Spermatophores,Spermatogonias,Spermatophore