Effect of temperature on the heart function of the five-strip eyebrow squirrel.
- Author:
Donghai LIU
1
;
Qiushi ZHANG
;
Liyan LIU
;
Jianjun ZHENG
;
Shiying TANG
;
You ZHANG
;
Yukun DIN
;
Ping ZHANG
Author Information
1. Chengde Medical College, Chengde 067000.
- Publication Type:Journal Article
- MeSH:
Animals;
Biomechanical Phenomena;
Female;
Heart;
physiology;
Hibernation;
In Vitro Techniques;
Male;
Myocardial Contraction;
Sciuridae;
anatomy & histology;
physiology;
Temperature
- From:
Journal of Biomedical Engineering
2003;20(1):101-103
- CountryChina
- Language:Chinese
-
Abstract:
This is an in vitro study designed to assess the effect of temperature variation on the heart function of the five-strip eyebrow squirrel--amammal of the hibernating kind. A heart model of exsomatizing action and for determining the physiological parameters with four physiological recorders was used to measure the LVSP, LVEDP and (+/- dP/dtmax), respectively. It was found that the curves of the squirrel's heart mechanics property in relation to temperature variation are similar to the curves of the non-hibernating animals'. But, the squirrels' heart contraction function changes with in a much wider range, suggesting that their hearts are more tolerant of temperature variation.
