Bones Of The Upper Limb Quiz

The correct answer is Metacarpal bones. The question is asking what "I" is pointing at, and the answer is the metacarpal bones. "I" is commonly used to refer to oneself, so in this context, it suggests that the person is pointing at the metacarpal bones, which are the bones in the hand that connect the wrist to the fingers.

The blue dot is pointing at the Olecranon Fossa. The Olecranon Fossa is a depression on the posterior surface of the distal end of the humerus bone. It is located just above the Olecranon, which is the bony prominence of the elbow. The Olecranon Fossa provides a space for the Olecranon process of the ulna bone to move freely when the elbow is flexed and extended.

C is pointing at the Pisiform bone.

The purple rectangle in the given options is the coracoid process. This is a bony projection located on the scapula (shoulder blade) that curves forward and downward. It serves as an attachment point for several muscles and ligaments, including the coracobrachialis muscle and the coracoclavicular ligament. The coracoid process can be easily identified due to its distinct shape and position on the scapula.

The radius is the lateral bone of the antebrachium. The antebrachium refers to the region between the elbow and the wrist, and the radius is one of the two bones in the forearm. It is located on the thumb side of the forearm and runs parallel to the ulna, which is the medial bone. The radius plays a crucial role in the movement of the forearm, allowing for rotation and movement of the wrist and hand.

The actual elbow "bone" is the Olecranon Process. The Olecranon Process is a bony projection located at the top of the ulna bone in the forearm. It forms the prominent bony point of the elbow and serves as an attachment site for muscles and ligaments. The Lateral Epicondyle and Radial Tuberosity are also structures associated with the elbow joint, but they are not considered the actual elbow "bone".

The pink polygon in this question is the "Lateral Border." The other options listed are not related to polygons or borders, except for "A toothbrush," which is clearly not a correct answer. Therefore, the only logical option is "Lateral Border" as the correct answer.

The trapezoid (of the wrist) is located on the lateral side of the capitate bone. The term "lateral" refers to the side away from the midline of the body. Therefore, the trapezoid bone is positioned on the outer side of the capitate bone.

The head of the radius pivots with the capitulum.