The medial condyle of the humerus, located on the distal aspect of the humerus bone, plays a crucial role in the articulation and movement of the elbow joint. It interacts closely with the trochlea, the trochlear notch, the olecranon fossa, and the medial epicondyle. The trochlea, a groove on the medial condyle, articulates with the trochlear notch of the ulna to facilitate flexion and extension of the forearm. The olecranon fossa, a depression adjacent to the trochlea, receives the olecranon process of the ulna during elbow flexion. The medial epicondyle, a projection located distal to the medial condyle, serves as an attachment point for various muscles and ligaments that contribute to elbow flexion and pronation.
Best Structure for Medial Condyle of Humerus
The medial condyle is located at the distal end of the humerus (upper arm bone). It forms the medial part of the trochlea, which is a spool-shaped surface that articulates with the trochlear notch of the ulna (forearm bone).
Structure:
The medial condyle is a prominent bony protuberance that is triangular in shape. It has three main surfaces:
- Anterior surface: Smooth and convex, articulates with the trochlea of the humerus
- Medial surface: Flat and slightly concave, provides attachment for the medial collateral ligament of the elbow joint
- Posterior surface: Forms the posterior boundary of the trochlear groove
Important Features:
- Capitulum: A rounded projection on the anterior surface of the medial condyle that articulates with the radial head (forearm bone)
- Trochlear groove: A narrow groove that runs along the posterior surface of the medial condyle and trochlea, accommodates the olecranon process of the ulna
- Lateral epicondyle: A bony projection located lateral to the medial condyle, provides attachment for several muscles and ligaments
Muscles Attached:
- Pronator teres
- Flexor carpi radialis
- Palmaris longus
- Flexor carpi ulnaris
- Brachioradialis
Ligaments Attached:
- Medial collateral ligament
- Annular ligament of the radius
Nerve Supply:
- Median nerve
Blood Supply:
- Brachial artery
Question 1:
What is the medial condyle of humerus?
Answer:
The medial condyle of the humerus is a rounded projection located on the distal (lower) end of the humerus (upper arm bone). It articulates with the trochlea of the ulna, allowing for flexion and extension of the forearm.
Question 2:
Where is the medial condyle of humerus located?
Answer:
The medial condyle of the humerus is positioned on the medial (inner) side of the distal humerus, just proximal (closer to the body) to the trochlea.
Question 3:
What is the function of the medial condyle of humerus?
Answer:
The medial condyle of the humerus acts as a joint surface, articulating with the trochlea of the ulna to facilitate the smooth movement of the forearm during flexion and extension.
Thanks for sticking with me through this crash course on the medial condyle of the humerus. I hope you found it informative and helpful. If you have any questions, please don’t hesitate to reach out. And stay tuned, because I’ll be back with more orthopedic adventures soon!