Connective tissue changes in the cervix during pregnancy and labor
| Autor: | Richard Selden, David N. Danforth, John C. Buckingham |
|---|---|
| Rok vydání: | 1962 |
| Předmět: |
medicine.medical_specialty
Uterus Physiology Connective tissue Cervix Uteri General Biochemistry Genetics and Molecular Biology History and Philosophy of Science Pregnancy medicine Humans Cervix Relaxin Labor Obstetric Genitourinary system Obstetrics business.industry General Neuroscience Ground substance Histology Hexosamines medicine.disease Hydroxyproline medicine.anatomical_structure Connective Tissue Female sense organs Collagen business |
| Zdroj: | Annals of the New York Academy of Sciences. 97 |
| ISSN: | 0077-8923 |
| Popis: | Research has led experts to the conclusion that the human cervix which becomes softer and increasingly dilatable is basically a connective tissue structure. Such tissue is composed of formed elements and the ground substance both of which are described. The histological changes of the cervix during pregnancy are described and pictured from microscope photography. The ultrastructure of cervical connective tissue is described as are changes in the water hydroxyproline and hexosamine concentrations during pregnancy. The connective tissue action which is responsible for the dilatability of the cervix during pregnancy and delivery is explained. The concentration of water in the cervix increases significantly during pregnancy reaching a peak just before labor. This increase in water does not seem adequate to cause the cervical softening occurring during pregnancy. Relaxin administered during a study produced no histological or chemical changes in the cervix. It is believed that major changes occur in all connective tissue structures during pregnancy. A general study of pregnancy and a particular study of the cervix might increase scientific understanding of both cervical and connective tissue changes in general. |
| Databáze: | OpenAIRE |
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