Short Communication: Sarcomere Length Changes During Fish Swimming

Short communication. Sarcomere length changes during fish swimming.

The interaction between actin and myosin represents the fundamental force-producing mechanism in all skeletal muscles. Interaction between analogous proteins also occurs within cells, resulting in movement of subcellular organelles. Although considerable detail is known about the muscle sarcomere length-tension relationship and how isometric force potential is a function of myofilament overla...

Contraction Bands at Short Sarcomere Length in Chick Muscle

Sarcomere length operating range of vertebrate muscles during movement.

The force generated by skeletal muscle varies with sarcomere length and velocity. An understanding of the sarcomere length changes that occur during movement provides insights into the physiological importance of this relationship and may provide insights into the design of certain muscle/joint combinations. The purpose of this review is to summarize and analyze the available literature regardi...

Sarcomere length during post-natal growth of mammalian muscle fibres.

The length of the sarcomeres, the Aand the I-filaments and their percentage overlap were measured in the fibres of the biceps brachii muscle from mice of different ages. The sarcomere length with the limb in the fully extended position was found to increase from 2-3 fi in the newborn animal to 2-8 fi in the adult. This increase was due to a decrease in the percentage overlap of the filaments an...

Short Communication Magnesium Transport in Fish Intestine

BY J. A. VAN DER VELDEN-, J. A. GROOT, G. FLIK, P. POLAK AND Z. I. KOLAR Department of Radiochemistry, Interfaculty Reactor Institute, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands, Department of Animal Physiology, Faculty of Science, University of Nijmegen, Nijmegen, The Netherlands, Department of Experimental Zoology, Faculty of Biology, University of Amsterdam, ...