What are the compartments of the forearm?
What are the compartments of the forearm?
The forearm is the region of the body spanning from the elbow to the wrist. It consists of several muscles and an extensive neurovascular network encased in three compartments. These include the anterior compartment, posterior compartment, and the mobile wad.
Where is the anterior compartment of the forearm?
Cross-section through the middle of the forearm. (Anterior compartment is at top; posterior compartment is at bottom.) The muscles are largely involved with flexion and pronation.
How many compartments does the forearm have?
The muscles in the forearm control the fine and intricate movements of the fingers as well as the gross and forceful movements of the hand and wrist. These muscles are divided into two compartments, based on both anatomical and functional differences.
Which muscles are in the anterior compartment of the forearm?
The superficial anterior forearm muscles are a group of five muscles located in the anterior (flexor) compartment of the forearm. These muscles include the pronator teres, flexor carpi radialis, flexor carpi ulnaris, palmaris longus and flexor digitorum superficialis.
What is the posterior compartment of the forearm?
The extensor indicis proprius usually runs and inserts onto the ulnar side of the extensor digitorum communis of the index finger. The fifth compartment is occupied by the extensor digiti minimi, the extensor of the little finger.
What are the compartments of the arm?
The compartments of the arm are the anterior compartment of the arm and the posterior compartment of the arm, divided by the lateral and the medial intermuscular septa. The compartments of the forearm are the anterior compartment of the forearm and posterior compartment of the forearm.
What is flexor compartment of forearm?
The superficial compartment of the flexor surface of the forearm contains the pronator teres, the flexor carpi radialis longus, the palmaris longus, the flexor carpi ulnaris, and the flexor digitorum superficialis. All of these muscles originate primarily from the medial epicondyle of the humerus.
Are forearm flexors anterior or posterior?
In cross-section, the forearm can be divided into two fascial compartments. The posterior compartment contains the extensors of the hands, which are supplied by the radial nerve. The anterior compartment contains the flexors and is mainly supplied by the median nerve.
How many compartments are in the arm?
Anatomically, the upper arm contains three compartments including the anterior (flexor), posterior (extensor), and the deltoid compartment.
What are the extensor muscles of the forearm?
These muscles include the brachioradialis, extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor carpi ulnaris and extensor digiti minimi.
What are the flexor muscles of forearm?
What are the muscles of extensor compartment of forearm?
The posterior compartment of the forearm (Extensor compartment of forearm) contains the following muscles:
- Brachioradialis.
- Superficial. extensor carpi radialis longus. extensor carpi radialis brevis.
- Intermediate. extensor digitorum. extensor digiti minimi.
- Deep. abductor pollicis longus. extensor pollicis brevis.
