Central compartment. Located between the thenar and hypothenar compartments and contains the flexor tendons and the lumbrical muscles.

the central compartment of the palmar surface of the hand contains the flexor tendons, the lumbricals, the superficial palmar arterial arch, and common palmar digital branches of the median and ulnar nerves

The central compartment of the hand contains three short intrinsic muscle groups—four lumbricals (I to IV), three palmar interossei, and four dorsal interossei. These small muscles are oriented so that digit III (the middle finger) delineates the central axis of the hand.

The intrinsic muscles of the hand are covered by the fibrous palmar fascia, which divides them into 4 main compartments: the thenar compartment located below the first digit, known as the thumb, the hypothenar compartment located below the fifth digit also known as the little finger, the adductor compartment located in the lateral part of the hand, and finally, the central compartment that’s found in the center of the palm.

Central compartment Contains the flexor tendons and their sheaths, the lumbricals, the superficial arterial palmar arch, and the digital vessels and nerves