PHYSIOLOGY
MUSCLE STRUCTURE FUNCTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Sarcolemma
|
|
|
Sarcoplasmic reticulum
|
|
|
Sarcomere
|
|
|
Sarcocalcium storage
|
Detailed explanation-1: -The sarcoplasmic reticulum (SR) is a membrane-bound structure found within muscle cells that is similar to the smooth endoplasmic reticulum in other cells. The main function of the SR is to store calcium ions (Ca2+).
Detailed explanation-2: -Sarcoplasmic reticulum stores calcium ions and releases them into the sarcoplasm for the generation of action potential during muscle contraction. The binding of calcium ions to troponin removes the masking of active sites of myosin present on actin filaments.
Detailed explanation-3: -The sarcoplasmic reticulum (SR) is a type of smooth endoplasmic reticulum that abounds in the myocyte (muscle cell). In myocytes, it can be seen as a membrane-bound structure inside the myocyte, containing calcium ions.