On the muscles of the back / by Holmes Coote.

  • Coote, Holmes, 1817-1872.
Date:
[1851]
Catalogue details

Licence: Public Domain Mark

Credit: On the muscles of the back / by Holmes Coote. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    back are either oblique or longitudinal, and may bo an-anged in the Ibllowing layers:— 1. Under the vertebral aponeurosis, and under the two serrati, is seen the splenius muscle, the fibres of which extend obliquely upwards and outwards, from the four upper dorsal and the four lower cervical spines to the diapophyses of the parietal, occipital, and four upper cervical vertebrae. 2. We see three longitudinal mus- cles:—(a) The interspinales, passing from spine to spine, (b.) The longis- simus dorsi, passing from diapophysis to diapophysis, (c.) The ilio-costalis passing from rib to rib. 3. Nearer. the vertebral column is a group of muscular fibres, passing obliquely upwards and inwards from diapophysis to spine, which may be comprised under the one head of obliqui or rotatoros spinae, the corn- plexus being only the upper portions separated at its insertion in conse- quence of the expansion of the occi- pital spine, and the great mobility of the head. There arc many interesting points of detail connected with these muscles which I have purposely avoided ; my object being to show the general plan upon which they are constructed and ar- ranged. Any apparent deviations from their typical simplicity have reference to their bulk, and not to their points of bony attachment, which remain the same under all circumstances; and such iiTegidarities may be studied in different animals with great advantage, in con nection with the shape of the vertebrae, and the direction of the articulating surfaces as pointing out the particular movements which are most readily per- formed in the different regions of the vertebral column.* * Since writinc: tlie above, I have observed that Dr. Edwai'd D’Alton adopts the name ilio-costalis for sacro-lnmbalis, in his work on Human Anatomy.
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