Anatomy of the Bony Thorax and Upper Limb Bones: Key Structures and Articulations

What is the deltoid tuberosity?

A raised area on the lateral surface of the humerus to which the deltoid muscle attaches.

What is the humerus?

The arm bone.

What are the bones composing the shoulder girdle?

The scapula and clavicle.

What is the clavicle?

Commonly called the collarbone.

What is the scapula?

Shoulder girdle bone that has no attachment to the axial skeleton.

What is the sternum?

Shoulder girdle bone that articulates anteriorly with the sternum.

What is the glenoid cavity?

Socket in the scapula for the arm bone.

What is the coracoid process?

Process above the glenoid cavity that permits muscle attachment.

What is the radius?

Forearm bone involved in the formation of the elbow joint.

What is the ulna?

Medial bone of the forearm in the anatomical position.

What is the capitulum?

Rounded knob on the humerus that articulates with the radius.

What is the coronoid fossa?

Anterior depression; superior to the trochlea; receives part of the ulna when the forearm is flexed.

What are the carpals?

Bones of the wrist.

What are the metacarpals?

Bones of the hand.

What are the phalanges?

Bones of the fingers.

What are the true ribs?

Ribs 1 through 7 that connect directly to the sternum.

What are the false ribs?

Ribs 8 through 12 that do not connect directly to the sternum.

What are the floating ribs?

Ribs 11 and 12 that do not attach to the sternum.

What is the thoracic cage?

The structure that protects the lungs and heart.

What is the general shape of the thoracic cage?

Cone-shaped.