Bones of the Forearm
The two parallel long bones, the radius (lateral) and the ulna (medial), form the
bones of the forearm
Ulna
The proximal end of the ulna consists of:
Olecranon which has the trochlear notch
for the articulation with the trochlea of
the humerus, and the coronoid process
Radial notch of ulna (articulates with
head of radius)
The distal end of the ulna is small and
has:
A rounded head which articulates with
radius
Ulnar styloid process
• During flexion at the elbow joint and
supination the forearm and hand the
radius and ulna are parallel
The two parallel long bones, the radius (lateral) and the ulna (medial), form the
bones of the forearm
Ulna
The proximal end of the ulna consists of:
Olecranon which has the trochlear notch
for the articulation with the trochlea of
the humerus, and the coronoid process
Radial notch of ulna (articulates with
head of radius)
The distal end of the ulna is small and
has:
A rounded head which articulates with
radius
Ulnar styloid process
• During flexion at the elbow joint and
supination the forearm and hand the
radius and ulna are parallel
