Bones of Upper Extremity

These flashcards cover key terms and definitions related to the bones of the upper extremity, focusing on features, attachments, and anatomical significance.

Pectoral Girdle

The structure that connects the arm to the body, consisting of the scapula and clavicle.

Clavicle

The bone that serves as a strut between the shoulder blade and the sternum.

Scapula

Also known as the shoulder blade, it connects with the humerus at the shoulder joint.

Humerus

The long bone in the upper arm, between the elbow and the shoulder.

Ulna

The medial bone of the forearm, located on the opposite side of the thumb.

Radius

The lateral bone of the forearm, on the same side as the thumb.

Carpals

The eight bones that make up the wrist.

Metacarpals

The five bones that form the middle part of the hand.

Phalanges

The bones of the fingers, consisting of distal, middle, and proximal sections.

Coracoid Process

A small hook-like structure on the scapula that serves as an attachment point for muscles.

Glenoid Cavity

The socket of the shoulder joint that articulates with the head of the humerus.

Acromion

The bony process on the scapula that forms the highest point of the shoulder.

Epicondyle

A bony projection above a condyle, serving as points for muscle attachment.

Olecranon

The prominent bony landmark on the ulna, known as the elbow.

Trochlea

A spool-shaped structure at the distal end of the humerus that articulates with the ulna.

Intertubercular Sulcus

A groove between the greater and lesser tubercles of the humerus for a tendon.

Carpals (Row #1)

The first row of wrist bones, consisting of Scaphoid, Lunate, Triquetrum, and Pisiform.

Carpals (Row #2)

The second row of wrist bones, consisting of Trapezium, Trapezoid, Capitate, and Hamate.

Distal Radius & Ulna

The location of the radius and ulna bones at the wrist, where they form the wrist joint.

Radial Styloid Process

A bony prominence on the distal end of the radius, important for wrist stability.

Ulnar Styloid Process

A bony prominence on the distal end of the ulna, serving as an attachment for wrist ligaments.