The head of a myosin monomer consists of:
$I.$ Actin binding sites
$II.$ $ATP$ binding sites
$III.$ $ADP$ binding sites
$IV.$ $AMP$ binding sites
Select the correct options:

If a muscle fails to give stimulation action and there is much ingestion of lactic acid,the condition is termed as

Choose the correct statements regarding muscle contraction. $A$. $A$ motor neuron carries a signal sent by the Central Nervous System $(CNS)$ to the sarcolemma of the muscle fibre. $B$. The neural signal generates an action potential which causes the release of $Ca^{++}$ into sarcoplasm. $C$. Increase in $Ca^{++}$ inactivates the actin for breaking cross bridges. $D$. Actin binds to the myosin head to form a cross bridge. $E$. Shortening of sarcomere takes place,by pulling actin filaments towards the centre of '$A$' band. Choose the correct answer from the options given below:

Proprioceptors are present in . . . . . . .

The anaerobic contraction of skeletal muscle causes deposition or accumulation of

$I.$ Sarcoplasmic reticulum are abundant
$II.$ Myoglobin content is high
$III.$ Sarcoplasmic reticulum are moderate
$IV.$ Aerobic muscles
$V.$ Depends on anaerobic respiration for energy
$VI.$ Less myoglobin content
Select the option with correct statements for red muscle.