Question

I am going to put up some interesting brain tinkering questions (answers should be in detail or report should take). What is Troponin? Difference between muscle twitch and tetanus. (no copying allowed)

Answer 1

Troponin belong to a set of contractile proteins. They are a complex of three polypeptides. Troponin T (TpT) bind to tropomyosin as well as to the other two Troponin components. Troponin I (TpI) inhibits (or stops) the F-actin-myosin interaction and also binds to other components of Troponin. Troponin C (TpC) is a calcium-binding polypeptide. The strong affinity of the Troponin for Calcium ion is believed to initiate the contraction process.
The major component of muscle is water. Potassium is the most abundant mineral element in the muscle. Other minerals which are also included are, such as, sodium, calcium, phosphorus and magnesium are present only in traces. Muscles store the storage contains in liver, glycogen. They have oxygen carrying pigment myoglobin or "muscle haemoglobin". Muscles also contain ATP, phosphocreatine, creating (must have in vegans to induce some energy, meat eaters have found it in great abundance, synthetic pills also bring in the effect but a little is to change), urea, etc.

Muscle twitch: A muscle fibre contracts only once if it is stimulated by a single nerve impulse or by a single electric shock of some decent adequate strength. This single isolated contraction of the muscle fibre is called single muscle twitch. Immediately after a twitch, the muscle fibre relaxes.
Tetanus The continued state of muscular contraction is called tetanus or leading to some kind of tetany.

DIFFERENCES BETWEEN MUSCLE TWITCH AND TETANUS:

1) Muscle twitch is related to the individual muscle fibres or cells.
2) Tetanus is related to a whole muscle made up of numerous muscle fibres.
3) In the muscle twitch, muscle fibres cannot prolonged contraction. A muscle twitch involves short duration contraction followed by relaxation.
4) Tetanus is related to the contraction of the muscle for prolonged periods of time without any rest or relaxation.
5) Muscle twitch involves, stimulus must be provided after intervals. A continuous stimulus will be useless as the muscle fibre will 'refuse' to recognise the same during relaxation and refractory periods.
6) Tetanus will invoke a continuous stimulus which is required for the total maintainance of tetanus.