Related Experiment Video
Updated: May 30, 2026

Human Placental and Decidual Organ Cultures to Study Infections at the Maternal-fetal Interface
Published on: July 21, 2016
Roberto Caldeyro Barcia (1921-96): establishing the basis of modern obstetric physiology
O F Dueñas-Garcia1, M Diaz-Sotomayor
1Bronx Lebanon Hospital Center, Obstetrics and Gynecology Department, 1650 Grand Concourse,5th floor, 10457 Bronx, NY, USA. oduenas@bronxleb.org
Abstract:
Physicians have used fetal heart monitoring for 300 years but it has faced a revolution in the last 50 years after the incorporation of new devices and the discovery of the normal patterns of labour. Dr Caldeyro Barcia in Uruguay was one of the pioneers of the development of intrauterine pressure monitors and, with Dr Edward H Hon (1917-2007), he established the basis of modern electronic fetal heart monitoring which is still used in most labour and delivery rooms across the World. Nowadays medicine and technology advances so fast that devices created 10 years ago are considered old fashioned or obsolete.
Related Concept Videos
Fetal Circulation
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...
Development of the Sexual Organs in the Embryo and Fetus
Near the gonadal ridges, two duct systems are present: the mesonephric ducts (Wolffian ducts) and paramesonephric ducts (Müllerian ducts). These ducts form the basis for the male...
Anatomy of the Circulatory System
Overview of the Reproductive System
The gonads, or primary reproductive organs, produce gametes and sex hormones. In males, the testes produce spermatozoa and testosterone, which is responsible for developing secondary male sex characteristics, including a deeper voice, larger muscles, facial and body...
Physical Principles Governing Gas Exchange
Gas Laws Governing Respiration
The behavior of gases is guided by Dalton's Law of partial pressures and Henry's Law.
Dalton's Law asserts that the total pressure exerted by...
Development of the Oral Microbiota

