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Which of the following statements correctly identifies the difference between a ligament and a tendon?
Ligaments connect muscles to bones; tendons connect bones to bones
Ligaments connect bones to bones; tendons connect muscles to bones
Ligaments are elastic; tendons are non-elastic
Ligaments are made of cartilage; tendons are made of bone
Ligaments connect bones to bones; tendons connect muscles to bones
Ligaments are tough, fibrous connective tissues that join bones to other bones to stabilize joints. Tendons are fibrous connective tissues that attach skeletal muscles to bones, enabling movement by transmitting force generated by muscle contraction.
Ligaments are tough, fibrous connective tissues that join bones to other bones to stabilize joints. Tendons are fibrous connective tissues that attach skeletal muscles to bones, enabling movement by transmitting force generated by muscle contraction.
Think of a ligament as the heavy-duty hinges on a door (holding the frame and door together) and a tendon as the pulley rope that allows you to pull the door open.
BLB: Bone-Ligament-Bone; MTB: Muscle-Tendon-Bone.
FtтАЛ=╧Г├ЧA тАФ where FtтАЛ is the tensile force transmitted by a tendon, ╧Г is the tensile stress, and A is the cross-sectional area.
Connective tissues are composed primarily of collagen fibers. Ligaments contain more elastin fibers, providing flexibility to allow joint movement while maintaining structural integrity. Tendons are composed of parallel collagen bundles that provide high tensile strength to effectively transfer force from the contractile unit of the muscle to the bone, facilitating skeletal motion.
Ligaments stabilize joints by limiting excessive motion.
Tendons act as mechanical transmitters of muscle contraction.
Both tissues are primarily composed of dense regular connective tissue with type I collagen.
Ligaments provide skeletal stability.
Tendons allow for precise biomechanical movement.
Both have relatively low blood supply, leading to slow healing after injury.
Anterior Cruciate Ligament (ACL) stabilizes the knee joint.
Achilles tendon transfers force from the calf muscle to the heel bone (calcaneus).
| Feature | Ligament | Tendon |
|---|---|---|
Function | Connects bone to bone | Connects muscle to bone |
Ligaments are generally more elastic than tendons.
Option A is incorrect because it reverses the definitions.
Option C is partially true regarding elasticity but incomplete as a definition.
Option D is incorrect because both are made of fibrous connective tissue, not cartilage or bone.
B is correct тАФ Ligaments connect bones to bones, whereas tendons connect muscles to bones.
Remember the 'BLB' and 'MTB' mnemonic to avoid confusion in exams; questions on this topic often swap these definitions to test basic anatomical knowledge.