Respuesta :
Present in high densities and skeletal muscle cells are;
II) Mitochondria
and
IV) endoplasmic reticulum
The mitochondria and the endoplasmic reticulum are present in both the smooth and the skeletal muscles.
The muscles in the body
The body is composed of the muscular system which is comprised of several muscles that make up the system. However, the muscles are divided into two. The smooth muscles which are not under concious control and the skeletal muscles which are under conscious control.
As such, the mitochondria and the endoplasmic reticulum are present in both the smooth and the skeletal muscles.
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