Bone
Ulna
Medial forearm bone
High-yield
Olecranon is the point of the elbow and the triceps insertion; the trochlear notch grips the humeral trochlea.
Overview
The medial and longer forearm bone that forms the main hinge of the elbow via the trochlear notch and stabilises the forearm.
Reference facts
- Bone type
- Long
- Key landmarks
- Olecranon; Coronoid process; Trochlear notch; Radial notch; Ulnar tuberosity; Head; Styloid process
- Articulations
- Humerus (trochlea, elbow joint); Radius (proximal and distal radioulnar joints)
Frequently asked questions
What type of bone is the ulna?
The ulna is a long bone.
What does the ulna articulate with?
The ulna articulates with the humerus (trochlea, elbow joint); Radius (proximal and distal radioulnar joints).
What are the key landmarks of the ulna?
Key landmarks of the ulna include the olecranon; Coronoid process; Trochlear notch; Radial notch; Ulnar tuberosity; Head; Styloid process.