Amerxcan Journal of Physiology
نویسنده
چکیده
BOULANT, J. A., AND K. E. BIGNALL. Hypothalamic neuronal responses to peripheral and deep-body temperatures. Am. J. Physiol. 225(6) : 1371-1374. 1973.-Single-unit activity was recorded in the anterior hypothalamic-preoptic area of anesthetized rats and ground squirrels. The local thermosensitivity (i.e., impulses/set . “C) of 28 units was determined by their change in firing rate to changes in local temperature which was controlled by an implanted thermode. The responses of these units were also determined for peripheral warming and cooling which resulted in changes in skin and extrahypothalamic deep-body temperatures. Twelve single units showed activity changes during peripheral thermal stimulation; six of these were locally warm sensitive, three were cold sensitive, and three were temperature insensitive. Of the single units that were thermosensitive to local and extrahypothalamic temperatures, 78(% had the same type of thermal coefficient for both temperatures. The effect of peripheral thermal stimulation on local thermosensitivity was determined in nine units. In these units, an increase in firing rate due to peripheral stimulation was usually associated with a decrease in local thermosensitivity, suggesting a competition for neuronal excitation between local and peripheral facilitory inputs.
منابع مشابه
Amerxcan Journal of Physiology
ZALEWSKI, ANDREW A. Efects of reinnervation on denervated skeletal muscle by axons uf motor, sensory, and sympathtic neurons. Am, J, Physiol. 219(6): 1675-1679. 1970.-Although the effects of denervation on skeletal muscle are reversed after reinnervation by axons of any somatic motor neurons, reinnervation by dendrites of sensory neurons has always proved unsuccessful. In order to determine whe...
متن کاملمروری بر معتبرترین مجلههای فیزیولوژی پزشکی
Background and Objectives: Prestigious journals are the most important tool for the transfer of scientific information, Physiology is the science of living organisms and medical physiology is the most important branche of physiology. The first step for publishing a paper is identifying specialized journals. Considering the importance of the point, the present study aimed to intro...
متن کاملA Tribute to Late Professor Mahlagha Ghorbanli
This edition of IJPP celebrates ten years of steady publication of Iranian Journal of Plant Physiology. The story of IJPP is that of a journey that started from a local forum where the researchers and scholars mainly from the Islamic Azad University could share findings of their studies, gradually developing into an international peer-reviewed jour...
متن کاملNeuroprotective Consequences of Postconditioning on Embolic Model of Cerebral Ischemia in Rat
متن کامل
Partially Tests during Course Improves the Students Retention of Renal Physiology Knowledge
Background: Longevity of basic medical sciences is a major concern of medical educators and physicians. It has been shown that different learning styles can affect the half-life of the material. This study aimed to evaluate the effect of partially tests during renal physiology course on "the student’s retention of renal physiology knowledge" and "knowledge loss" in pharmacy and medical students...
متن کامل