Answer:
smooth muscle
Explanation:
Smooth muscles are found on the walls of alimentary canal, blood vessels and tubular visceral organs e.g., urino-genital system and respiratory tract. The cells that make up the smooth muscles are spindle-shaped each with a single nucleus that is centrally located.
They contain myofibrils enclosed by a plasma membrane. They are capable of slow involuntary contractions. Observed under the microscope, the cells lack cross striations hence referred to as unstriated muscle. They contract and fatigue slowly.
Promote cellular growth and preparation<span> for division.
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Blood type O can be given to anyone.
Digestion, medulla, heart, and involuntary muscles
