A system of human anatomy, general and special . oosely by its dorsal portion. By its deep surface, from abovedownwards, with the complexus, splenius, levator anguli scapula?,supra-spinatus, a small portion of the serratus posticus superior, rhom-boideus minor, rhomboideus major, intervertebral aponeurosis whichseparates it from the erector spina?, and with the latissimus anterior border of the cervical portion of this muscle forms theposterior boundary of the posterior triangle of the neck. The clavi-cular insertion of the muscle sometimes advances to the middle of the 214 MUSCLES O
A system of human anatomy, general and special . oosely by its dorsal portion. By its deep surface, from abovedownwards, with the complexus, splenius, levator anguli scapula?,supra-spinatus, a small portion of the serratus posticus superior, rhom-boideus minor, rhomboideus major, intervertebral aponeurosis whichseparates it from the erector spina?, and with the latissimus anterior border of the cervical portion of this muscle forms theposterior boundary of the posterior triangle of the neck. The clavi-cular insertion of the muscle sometimes advances to the middle of the 214 MUSCLES OF THE BACK. clavicle, or as far as the outer border of the sterno-mastoid, and occa-sionally it has been seen to overlap the latter. This is a point ofmuch importance to be borne in mind in the operation for ligature ofthe subclavian artery. The spinal accessory nerve passes beneaththe anterior border, near to the clavicle, previously to its distributionto the muscle. The ligamentum nuchce is a thin cellulo-fibrous layer extended from Fig. no.*. * The first and second and part of the third layer of muscles of the back ; the first layerbeing shown upon the right, and the second on the left side. 1. The trapezius muscle. tendinous portion which, with a corresponding portion in the opposite muscle, formsthe tendinous ellipse on the back of the neck. 3. The acromion process and spine of thescapula. 4. The latissimus dorsi muscle. 5. The deltoid. 6. The muscles of the dorsumofthe scapula, infraspinatus, teres minor, and teres major. 7. The external obliquemuscle. 8. The gluteus medius. 9. The glutei maximi. 10. The levator anguli scapula;.11. The rhomboideus minor. 12. The rhomboideus major. 13. The splenius capitis;the muscle immediately above, and overlaid by the splenius, is the complexus. 14. Thesplenius colli, only partially seen; the common origin of the splenius is seen attachedto the spinous processes below the lower border of the rhomboideus major. 15. Thevertebral ap
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectanatomy, bookyear1847
