Which statement is true about the origin of a skeletal muscle?

• A. It is always located on the distal bone relative to the insertion.
• B. It is typically the attachment point that remains relatively fixed during muscle contraction.
• C. It is typically the attachment point that moves the most during muscle contraction.
• D. It is the attachment site connected to bone only by cartilage rather than connective tissue.

Answer: (B)

Verified step by step guidance

1. Understand the definition of 'origin' in the context of skeletal muscles: The origin is the point where the muscle attaches to a bone that remains relatively stable during contraction.
2. Recall that the 'insertion' is the attachment site that typically moves when the muscle contracts, usually located on the bone that moves more.
3. Recognize that the origin is not necessarily on the distal bone; it can be on the proximal or more fixed bone relative to the insertion.
4. Know that muscle attachments are generally connected to bones by connective tissue (tendons or aponeuroses), not cartilage, so the origin is not connected by cartilage.
5. Conclude that the true statement is that the origin is typically the attachment point that remains relatively fixed during muscle contraction.