RESPIRATORY MOVEMENTS AND BLOOD GASES IN THE OVINE FETUS
نویسندگان
چکیده
منابع مشابه
Red blood cell life span in the ovine fetus.
Red cell life span within the fetal circulation has not been reported, although erythrocyte life span has been studied in the adult and newborn. The present study quantified red cell life span in 12 chronically catheterized fetal sheep at 97-136 days gestation (term = 150 days) with the use of autologous red cells labeled with [(14)C]cyanate. Cyanate forms a permanent covalent bond with hemoglo...
متن کاملHistological study of the atrioventricular node and bundle in the heart of ovine fetus
This study was conducted on the atrioventricular node (AVN) and atrioventricular bundle (AVB) of fivefour-month-old ovine fetuses. The histological structure of these components was studied by routinehistological techniques and use of specific staining methods. The AVN was caudally located adjacent to theroot of the aorta. It was almost spherical in shape and consisted of twisty cells. The node...
متن کاملAngiotensin-(1--7) in the ovine fetus.
In the adult animal, ANG-(1-7) may counterbalance some effects of ANG II. Its effects in the fetus are unknown. Basal ANG-(1-7), ANG I, ANG II, and renin concentrations were measured in plasma from ovine fetuses and their mothers (n = 10) at 111 days of gestation. In the fetus, concentrations of ANG I, ANG-(1-7), and ANG II were 86 +/- 21, 13 +/- 2, and 14 +/- 2 fmol/ml, respectively. In the ew...
متن کاملPrenatal development of ovine fetus.
From 39 gravid ovine genitalia in various stages of gestation, collected from a local slaughter house in Srinagar city, 37 and 4 fetuses were obtained from single and twin pregnancies, respectively. The genitalia collected were divided into four stages of gestation as: Stage- I (30-60 days); Stage-II (61-90 days); Stage-III (91-120 days); and Stage-IV (120 days to term).Various measurements of ...
متن کاملBlood pressure and heart rate in the ovine fetus: ontogenic changes and effects of fetal adrenalectomy.
Ontogenic changes in baseline and 24-h rhythms of fetal arterial blood pressure (FABP) and heart rate (FHR) and their regulation by the fetal adrenal were studied in 18 fetal sheep chronically instrumented at 109-114 days gestation (GA). In the long-term study, FABP and FHR were continuously recorded from 120 days GA to spontaneous term labor (>145 days GA) in five animals. Peak times (PT) and ...
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ژورنال
عنوان ژورنال: Pediatric Research
سال: 1974
ISSN: 0031-3998,1530-0447
DOI: 10.1203/00006450-197404000-00785