Which term best describes the pulling of your toes upward toward your shin?

A ligament is a type of fibrous connective tissue that connects bone to bone. It usually serves to hold structures together and keep them stable.

For example, the anterior cruciate ligament (ACL) connects the femur and the tibia in the knee joint.

Choice A is incorrect because none of these is not a valid answer.

Choice C is incorrect because tendons are fibrous connective tissues that connect muscle to bone.

For example, the Achilles tendon connects the gastrocnemius muscle to the calcaneus bone in the ankle.

Choice D is incorrect because syndesmosis is a type of fibrous joint that connects two bones by a ligament or an interosseous membrane.

For example, the distal tibiofibular joint is a syndesmosis joint.

The acromioclavicular joint is the articulation between the acromion of the scapula and the acromial end of the clavicle.

It is a plane synovial joint that allows movements of the shoulder girdle. Choice A is incorrect because the ulna and scapula do not form a joint.

The ulna is a bone of the forearm that articulates with the humerus and radius. Choice C is incorrect because none is not a valid option.

There is a specific joint between two bones that is called the acromioclavicular joint.

Choice D is incorrect because the humerus and scapula form a different joint, called the glenohumeral joint.

This is a ball-and-socket synovial joint that allows movements of the shoulder.