Medical Journal of the Islamic Republic Of Iran
مجله پزشکی جمهوری اسلامی ایران
Med J Islam Repub Iran
Medical Sciences
http://mjiri.iums.ac.ir
2
journal2
1016-1430
2251-6840
8
10.18869/mjiri
14
8888
13
en
jalali
1373
2
1
gregorian
1994
5
1
8
1
online
1
fulltext
en
HY POXIA AND I TS INFLUEN CES ON THE CARDIOVASCULAR AND RESPIRATORY SYSTEMS OF SPONTANEOUSLY BREATHING CATS
Physiology
Physiology
Original Research: Basic Science in Medicine
Original Research: Basic Science in Medicine
Effects of acute systemic hypoxia on the cardiovascular system (CYS) and
respiration of spontaneously breathing cats were studied in two conditions. 1):
Hypoxic air (6-8% 02 in N2) was given to the animal to induce systemic hypoxia for
20 minutes. Hyperventilation at this condition lowered arterial C02 tension (PaC02
hypocapnia). 2): In the second run, induction of hypocapnia was prevented by adding
3-5% C02 to hypoxic air. Comparison of the results of this study indicated that
hypoxia, independent of the presence of hypocapnia, caused a significant increase in
respiratory rate, aortic flow and arterial blood pressure. However, in the presence of
hypocapnia, the increased respiratory rate was 10% less and a general arterial
vasconstriction was observed.
hypocapnia; arterial chemoreceptors; cardiovascular system.
43
46
http://mjiri.iums.ac.ir/browse.php?a_code=A-10-298-606&slc_lang=en&sid=1
GHOLAM A.
DEHGHANI
20031947532846006102
20031947532846006102
Yes
From the Dept. of Physiology. Shiraz Medical School, Shiraz University of Medical Sciences, Shiraz.lslamic Republic of Iran
A
BAHAEDINI
20031947532846006103
20031947532846006103
No