Draw the diagram of a sarcomere of skeletal muscle showing different regions.

(N/A) sarcomere is the functional unit of a skeletal muscle fiber. It is defined as the segment of a myofibril between two successive $Z$-lines.
Key components include:
$1$. $Z$-line: $A$ dark,fibrous protein band that bisects the $I$-band.
$2$. $I$-band (Isotropic band): Contains only thin actin filaments.
$3$. $A$-band (Anisotropic band): Contains both thick myosin filaments and overlapping thin actin filaments.
$4$. $M$-line: $A$ thin fibrous membrane in the middle of the $A$-band.
$5$. $H$-zone: The central part of the $A$-band where only thick filaments are present.