- fetal respiration
- gaseous interchange through the placenta.
Medical dictionary. 2011.
Medical dictionary. 2011.
respiration, human — ▪ physiology Introduction the process by which oxygen is taken up and carbon dioxide discharged. The design of the respiratory system The human gas exchanging organ, the lung, is located in the thorax, where its delicate tissues are… … Universalium
fetal acoustic stimulation test — (for assessing fetal health) a vibroacoustic stimulus such as an electronic artificial larynx is applied either externally or directly to the fetus and resultant fetal movements, cardioacceleration, and alterations in respiration are evaluated … Medical dictionary
Fetal circulation — The circulatory system of a human fetus works differently from that of born humans, mainly because the lungs are not in use: the fetus obtains oxygen and nutrients from the mother through the placenta and the umbilical cord.Whitaker, Kent.… … Wikipedia
fetal death — death in utero; failure of the product of conception to show evidence of respiration, heartbeat, or definite movement of a voluntary muscle after expulsion from the uterus, with no possibility of resuscitation. Called also stillbirth … Medical dictionary
fetal membrane — noun any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus • Hypernyms: ↑membrane, ↑tissue layer • Hyponyms: ↑allantois, ↑caul, ↑veil, ↑embryonic membrane, ↑umbilical cord … Useful english dictionary
Joseph Barcroft — Sir Joseph Barcroft (26 July 1872 21 March 1947) was a British physiologist best known for his studies of the oxygenation of blood.He received his degree in Medicine and Science in 1896 from Cambridge University, and immediately began his studies … Wikipedia
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
pregnancy — /preg neuhn see/, n., pl. pregnancies. the state, condition, or quality of being pregnant. [1520 30; PREGN(ANT) + ANCY] * * * Process of human gestation that takes place in the female s body as a fetus develops, from fertilization to birth (see… … Universalium
poison — poisoner, n. poisonless, adj. poisonlessness, n. /poy zeuhn/, n. 1. a substance with an inherent property that tends to destroy life or impair health. 2. something harmful or pernicious, as to happiness or well being: the poison of slander. 3.… … Universalium
Hemoglobin — Hemoglobin, human, adult (heterotetramer, (αβ)2) Structure of human hemoglobin. The protein s α and β subunits are in red and blue, and the iron containing heme groups in green. Fro … Wikipedia