Answer
A muscle compartment is a group of functionally related muscles that are separated from other groups by connective tissue fascia. A compartment contains nerves and blood vessels that serve it.
Compartmentalization is most easily observed in the limbs, pelvic floor, and in walls of thorax and abdomen.
Examples:
Muscles of anterior compartment of the upper arm:
Biceps brachii. brachialis and coracobrachialis
Blood supply : brachial artery
Innervation: musculocutaneous nerve
The triceps brachii muscle is in the posterior compartment of the upper arm
Blood supply : profunda brachii artery
Innervation : radial artery
Work Step by Step
Intermuscular septa; An intermuscular septum is a broad, thick fascia that separates one muscle from another-- especially in the limbs. Examples are the posterior and anterior crural intermuscular septa of the leg. Fascia is the general name for a sheet of connective tissue that invests and separates adjoining muscles ,or muscle groups, from each other and from subcutaneous tissue . Crural fascia or septa are found in the lower limbs.
Interosseous membranes are connective tissue sheets that join jbones
Examples are the connective tissue sheet between the radius and the ulna, and that between the tibia and the fibula. The structure (joint) formed is a syndesmosis -- the interosseous membrane acting as a kind of ligament.
