Definition of interosseous in English:



  • 1Anatomy
    Situated between bones.

    ‘the first dorsal interosseous space’
    • ‘It is attached to the cuboid by an interosseous ligament and to the cuboid and navicular bones by the strong bifurcate ligament.’
    • ‘The sacroiliac ligament is a strong interosseous connection between the sacrum and ilium on the posterior surface.’
    • ‘It is innervated by the anterior interosseous nerve and may be represented as the tibialis posterior of the leg.’
    • ‘The anterior compartment is defined by the tibia, interosseous septum, fibula, and a line of fascia extending from it in an anterolateral direction.’
    • ‘It is innervated by the anterior interosseous branch of the median nerve.’
    1. 1.1Of or denoting certain muscles between the bones of the hand and foot.
      • ‘The ulnar nerve also innervates the adductor pollicis and first dorsal interosseous muscles, which allow pinch.’
      • ‘The palmer interosseous muscles adduct the fingers toward the axial line or the middle digit, and the dorsal interosseous muscles are abductors of the fingers.’
      • ‘The dorsal interosseous muscles are larger than their plantar counterparts, are four in number, and fill the intermetatarsal spaces.’
      • ‘The first dorsal interosseous muscle inserts into the extensor expansion.’
      • ‘These arteries supply the interosseous muscles and bones and the second, third, and fourth lumbrical muscles.’
    2. 1.2Of or denoting certain arteries between the bones of the forearm.
      • ‘It may join the radial artery at the wrist, or if the radial stops short of the carpus the posterior interosseous artery may replace it.’
      • ‘Still more rarely, it gives rise to the interosseous artery or a vas aberrans.’
      • ‘The ulnar artery has been found taking a superficial course when arising in the usual situation, and in these cases also the recurrent and interosseous arteries may be given off by the radial trunk.’
      • ‘In some cases, the arch is reinforced or completed by a large median artery, arising frequently from the common interosseous, or from an enlarged metacarpal artery.’
      • ‘These vessels anastomose with the radial recurrent and the interosseous recurrent arteries, respectively.’