--%>
Assignment Help - homework help

Strength of muscle work-Muscle contraction

To raise strength of the muscle work is the muscle contraction intensely raised?

E

Expert

Verified

Raise in strength of muscle work is not accomplished by raise in the intensity of stimulation of each muscle fiber. Muscle fiber obeys an all-or-nothing rule, that is, its contraction strength is only one and can’t be raised.

When the body requires raise the strength of muscle work a phenomenon recognized as spatial summation takes place: new muscle fibers are recruited in addition to fibers already in action. So strength of muscle contraction rises only when the number of the active muscle cells raises.

   Related Questions in Biology

  • Q : Cartilaginous and osseous tissue Which

    Which type of tissue is cartilaginous and osseous tissue?

    		•
  • Q : Major divisions of the hypophysis What

    What are the major divisions of the hypophysis? Also describe their functions?

    		•
  • Q : Defense cell- make worm infections

    State the kind of defense cell which make worm infections stimulate the multiplication?

    		•
  • Q : Explain Quality Assurance or Quality

    Quality Assurance or Quality Control: The words “quality assurance” and “quality control” are frequently employed interchangeably to refer to ways of making sure the quality of a service or product. The words, however, have dis

    		•
  • Q : Substance which stimulates the

    Name the substance which stimulates the production of red blood cells? Also state the organ which secretes it? Under what situation does this secretion raise?

    		•
  • Q : Differentiation between facilitated and

    Write down the differentiation between facilitated and simple diffusion. Facilitated through which kind of molecule does the word ‘facilitated’ signify?

    		•
  • Q : Five Stage Model-Group Development -

    This group development model given by Tuckman and Jensen characterizes groups as proceeding through five distinct stages: forming, storming, norming, performing, and adjourning. 1)     Forming: this first stage is characterized by a great deal of uncer

    		•
  • Q : Main phases and clinical manifestations

    Write down the main phases and clinical manifestations of the schistosomiasis?

    		•
  • Q : Obelia and Aurelia In metagenesis of

    In metagenesis of Obelia and Aurelia what is the form which generates gametes? What is the form which reproduces asexually?

    		•
  • Q : What is coelom What is meant by the

    What is meant by the coelom? To which structures do the coeloms give birth? State whether all animals are coelomate? Specify germ layer from which the coeloms originate?

    		•