Publication Date:
1981-10-02
Description:
The ability of vertebrae skeletal muscle to contract more vigorously than normal in the presence of potentiating agents depends on the initial length of a muscle cell. Other factors such as the intracellular calcium ion transient, temperature, chemical nature of the potentiating agent, and the ratio of intrinsic twitch to tetanic force influence the degree of contractile potentiation but cannot account for the length dependence. At least part of a muscle cell seems normally less than fully active during contractions not only at short lengths but also at optimal sarcomere lengths.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lopez, J R -- Wanek, L A -- Taylor, S R -- NS 14268/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1981 Oct 2;214(4516):79-82.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6974399" target="_blank"〉PubMed〈/a〉
Keywords:
Aequorin
;
Animals
;
Calcium/*physiology
;
In Vitro Techniques
;
*Muscle Contraction/drug effects
;
Muscles/*physiology/ultrastructure
;
Rana temporaria
;
Temperature
;
Zinc/pharmacology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink
