How many compartments are in the lower arm?
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.
What are the compartments of the arm?
They are divided into two distinct compartments of the arm. The anterior (flexor) compartment contains the biceps brachii, coracobrachialis and brachialis muscles. The posterior (extensor) compartment contains mainly the triceps brachii muscle.
What are the two compartments of the forearm?
Two bones, the radius laterally and the ulna medially, form the forearm. It has two compartments, the anterior (flexor) and posterior (extensor). The two compartments together have twenty muscles.
What are the parts of the lower arm?
The forearm is the area between the elbow joint and the wrist. Its two major bones are the radius and the ulna: Radius. The radius is located on the side of the forearm closest to the thumb.
How many compartments are in the upper arm?
three compartments
Anatomically, the upper arm contains three compartments including the anterior (flexor), posterior (extensor), and the deltoid compartment.
What are the compartments of the hand?
The hand is comprised of eleven separate compartments. These are the four dorsal interossei, three volar interossei, the thenar, the hypothenar, the adductor, and the mid-palm compartments, respectively.
What are the layers of the forearm?
Anterior Compartment of Forearm
- SUPERFICIAL LAYER.
- Pronator teres muscle.
- Flexor carpi radialis muscle.
- Palmaris longus muscle.
- Flexor carpi ulnaris muscle.
- INTERMEDIATE LAYER.
- Flexor digitorum superficialis muscle.
- DEEP LAYER.
What’s the outside of your forearm called?
The radius is located on the lateral side of the forearm between the elbow and the wrist joints.
What is the lower arm?
Overall, the forearm comprises the lower half of the arm. It extends from the elbow joint to the hand, and it is made up of the ulna and radius bones. These two long bones form a rotational joint, allowing the forearm to turn so that the palm of the hand faces up or down.
What are the compartments of the upper limb?
The upper limb is divided into three regions: the hand, the arm, and the forearm. The two proximal regions are further anatomically divided into two compartments, namely anterior and posterior. In addition to the bony framework, an impressive organization of deep fascia forms the divisions of these compartments.
What are the 5 compartments of the hand?
What are the compartments of the wrist?
Structure
Compartment | Component(s) |
---|---|
1 | Abductor pollicis longus tendon Extensor pollicis brevis tendon |
2 | Extensor carpi radialis longus tendon Extensor carpi radialis brevis tendon |
3 | Extensor pollicis longus tendon |
4 | Extensor digitorum tendons Extensor indicis tendon |
What is the anatomy of the forearm?
How many compartments are in the arm?
Anatomically, the upper arm contains three compartments including the anterior (flexor), posterior (extensor), and the deltoid compartment. The deltoid compartment is innervated by the axillary nerve and surrounded by the deltoid fascia which splits into two parts.