When the term biceps triceps or quadriceps forms part of a muscles name what does it tell you about the muscle?

It tells you the number of origins. "When biceps, triceps, or quadriceps forms part of a muscle's name, you can assume that the muscle has two, three, or four origins, respectively. For example, the biceps brachii muscle of the arm has two origins, or heads."

- Human Anatomy & Physiology. Eighth Edition. Elaine N. Marieb page 321