A sesamoid bone is one that lies within a tendon. The tendon slides across the bone to reduce friction, increase the force the tendon can pull with, and/or prevent the tendon from flattening when it is taut. There are several sesamoid bones in the body, but only one in the wrist. It is called the pisiform and it lies within the tendon of the flexor carpi ulnaris muscle.

The ulna is the longer and thinner bone in the forearm. The radius is the shorter, thicker bone of the forearm. The fibula is the long thin bone of the leg. The olecranon is a bony eminence of the ulna, that is palpable as the elbow.

The wrist is composed of eight bones. The scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, and hamate. The talus is a bone in the ankle.

Condyles articulate with bones (such as the lateral and medial condyles of the femur) while epicondyles serve as attachment points for ligaments and muscles. The funny bone is the medial epicondyle. Lateral refers to something farther from the mid line. The ulnar nerve passes between the medial epicondyle and the olecranon process of the ulna, so it can easily be overstimulated by being hit on one of these bony prominences.

Anatomically speaking, the shoulder girdle in humans consists of two bones: the scapula and the clavicle. Of the answer choices listed, scapula is the only one that is correct.

Interosseous membranes are thin flat stretches of fibrous tissue that stretch between the ulna and radius of the forearm and also between the tibia and fibula of the lower limbs. They serve to separate structures such as the muscles on the anterior and posterior sides of the arm, absorb impact, and maintain integrity of the joint during movements.

Of the two bones in the forearm, the point of the elbow is located on the ulna. This eliminates the answer choice that says the olecranon of the radius because that is not an actual structure. The medial and lateral condyles are located on either side of the bone, meaning the correct answer is the olecranon of the ulna.

Distal row of carpals from lateral to medial: trapezium, trapezoid, capitate, hamate. Proximal row of carpals from lateral to medial: scaphoid, lunate, triquetrum, pisiform.

The radius is the lateral bone of the forearm. The ulna is the medial bone of the forearm; it articulates with the humerus and radius. The humerus is the largest bone of the upper limb and is the only bone of the (upper) arm. The fibula is the lower leg's analog of the radius. Remember to refer to the anatomical position whenever orienting yourself with gross anatomy.

The ulna is the medial bone of the forearm; it articulates with the humerus and radius. The radius is the lateral bone of the forearm. The humerus is the largest bone of the upper limb and is the only bone of the (upper) arm. The tibia is the lower leg's analog of the ulna.