Lesson 3 - Radius & Ulna

Radius

Located in the antebrachium between the humerus and the carpus.

The main weight-bearing bone of the antebrachium

Head (radius)

the proximal aspect of bone

Body (radius)

the main shaft of bone.

The cranial surface of the body is usually convex, while the caudal is concave.

Medial Styloid Process (radius)

distomedial process

Ulna

found in the antebrachium between the humerus and the carpus

Olecranon tuber

a palpable tuber on the proximal aspect of the ulna

Anconeal Process

a prominence on the proximal end of the TROCHLEAR NOTCH

Trochlear notch

a cranial facing conclave arc between the ANCONEAL PROCESS and the CORONOID PROCESSES. This structure articulates with the humeral TROCHLEA.

Medial Coronoid Process

a process on the distomedial end of the TROCHLEAR NOTCH

Lateral Styloid Process

a palpable, distal process

Lateral Coronoid Process

a process on the distolateral end of the TROCHLEAR NOTCH; The LATERAL CORONOID PROCESS is smaller than the MEDIAL CORONOID PROCESS

Olecranon

a general term for the proximal extremity that includes OLECRANON TUBER and ANCONEAL PROCESS