In muscle anatomy, what structure most commonly attaches one muscle to another muscle?

• A. Tendon
• B. Ligament
• C. Aponeurosis
• D. Fascia (deep fascia)

Answer: (C)

Verified step by step guidance

1. Step 1: Understand the function of each structure listed. A tendon connects muscle to bone, a ligament connects bone to bone, fascia is a connective tissue layer surrounding muscles, and an aponeurosis is a broad, flat sheet of connective tissue.
2. Step 2: Recognize that the question asks specifically about the structure that attaches one muscle to another muscle, not muscle to bone or bone to bone.
3. Step 3: Recall that tendons primarily connect muscles to bones, so tendons are unlikely to be the correct answer here.
4. Step 4: Ligaments connect bones to other bones, so they do not connect muscles to muscles.
5. Step 5: Aponeuroses are broad, flat sheets of connective tissue that often connect muscle to muscle or muscle to other structures, making them the most common structure for muscle-to-muscle attachment.