Smooth Muscle Cell

Smooth muscle cells are a type of muscle cell that are found in the walls of internal organs and blood vessels. They are responsible for involuntary movements, such as the contractions of the digestive system or blood vessels. Smooth muscle cells have a spindle-shaped appearance and lack the striations found in skeletal muscle cells.

Muscle Cell Nucleus

The nucleus is a specialized organelle that holds a cell's genetic material. It is surrounded by a protective double membrane called the nuclear envelope, which contains small pores for material exchange.