A directory for the dissection of the human body / by John Cleland and John Yule Mackay.

  • Cleland, John, 1835-1924.
Date:
1898
Catalogue details

Licence: Public Domain Mark

Credit: A directory for the dissection of the human body / by John Cleland and John Yule Mackay. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

    89/216 page 77
    external to it the occipital artery [417], a branch of the external carotid : these are both to be traced upwards on the scalp. Nearer the middle line a small branch from the third cervical nerve [510] is to be found ; while further out, along the posterior border of the sterno-mastoid, the small occipital nerve [511], a branch of the cervical plexus, will be seen ascending. Beneath these structures is the posterior fleshy belly or occipital part of the occipito-frontalis [330] attached to the superior curved line below, and ending above in its aponeurosis, which is likewise to be brought into view, so as to show its close connec- tion with the subcutaneous fat, and its free movement on the pericranium underneath. By dissecting close to the back of the ear, the little retrahcns auriculam muscle [330] will be found passing forwards from the mastoid process, and underneath it the posterior auricular branch of the external carotid artery [417], as also the auricular branch of the facial nerve [551] supplying the retrahens auriculam and occipital part of the occipito-frontalis muscle. By turning the head well to one side, and making an additional incision, the attollens auriculam muscle descending to the ear, and the attrahens auriculam in front of it, may be also dissected at present; or they may be left till another opportunity. If the small occipital nerve be followed down it will be found to emerge from beneath the posterior border of the sterno-mastoid, and a little lower the trunk of the great auricular [512] nerve will be seen turning over the border of the muscle. Still lower the superficial cervical nerve passes forwards round the
    digitised image 1
    digitised image 2
    digitised image 3