Multiple Choice
Which muscle of the arm has three heads or points of origin?
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10. Muscles
Origin and Insertion
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In anatomical terminology, what is the term for a muscle’s attachment to the movable bone?
A
Origin
B
Tendon
C
Belly
D
Insertion
Verified step by step guidance1
Understand the basic anatomical terms related to muscle attachments: muscles typically have two points of attachment—one on a fixed bone and one on a movable bone.
Recall that the 'origin' is the muscle attachment site on the fixed (immovable) bone, which serves as the anchor point during muscle contraction.
Recognize that the 'insertion' is the muscle attachment site on the movable bone, which moves when the muscle contracts.
Differentiate between other terms: 'tendon' refers to the connective tissue that attaches muscle to bone, and 'belly' refers to the thick, central part of the muscle.
Conclude that the term for a muscle’s attachment to the movable bone is 'insertion'.
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