$M-$line passes through the centre of

Which of the following is not a characteristic feature of the biceps muscle?

Which is the smallest muscle in the human body?

Skeletal muscles are closely associated with the $...A...$ components of the body. They have $... B...$ appearance under the microscope and hence are called $...C...$ muscles.
Choose the correct options to fill $A, B$ and $C$,so as to complete the given $NCERT$ statement.

Both proteins,actin and myosin,are arranged in a rod-like structure in the muscles:

During the mechanism of muscle contraction,$Ca^{2+}$ binds with which of the following?