Muscles

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There are three main types of muscles, these are:

Skeletal: These muscles are commonly found attached to bones via the tendons.
Cardiac: This particular muscle is what makes up the heart's walls.
Smooth: This muscle is what makes up the walls of blood vessels, such as arteries and veins.

Below is a diagram of a typical skeletal muscles:

 Tendons: Tendons are what attach a skeletal muscle to a bone in order for the muscle to move the bone. They are found at the ends of every skeletal muscle.
Blood Vessels: Blood vessels supply the muscles with blood.

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