. Cunningham's Text-book of anatomy. Anatomy. 1358 SUEFACE AXD SUKGICAL ANATOMY. Bony Landmarks of the Cranium.—At the root of the nose is the fronto- nasal suture (nasion); a little above it is the glabella, a slight prominence which connects the superciliary arches. About 1 in. below the posterior pole of the Epicranial aponeurosis Lax connective tissue Pericranium Outer table of cranial wall' . •^->yj(-i^.iirvr» Anastomosis between arteries of . scalp and those of the dura mater ~~ "??'"-" p-- ^pp Inner table of cranial wall- Dura mate. Parasinoidal sinus' Cerebral vein op
. Cunningham's Text-book of anatomy. Anatomy. 1358 SUEFACE AXD SUKGICAL ANATOMY. Bony Landmarks of the Cranium.—At the root of the nose is the fronto- nasal suture (nasion); a little above it is the glabella, a slight prominence which connects the superciliary arches. About 1 in. below the posterior pole of the Epicranial aponeurosis Lax connective tissue Pericranium Outer table of cranial wall' . •^->yj(-i^.iirvr» Anastomosis between arteries of . scalp and those of the dura mater ~~ "??'"-" p-- ^pp Inner table of cranial wall- Dura mate. Parasinoidal sinus' Cerebral vein opening into superior sagittal sinus. Integument Artery in superficial fascia Vein in superficial fascia Vein of the diploe connecting the veins of the scalp with those of the dura mater Vein in dura mater Arachnoid mater ^—Pia mater Ujji§—Arachnoideal granulation ^^B—Cortex cerebri Superior sagittal sinus Vein in pia-arachnoid Sub-arachnoid space Fig. 1066.—Diagrammatic Representation of a Coronal Section through the Scalp, Cranium, Meninges, and Cortex Cerebri (modified from Cunningham). cranium, and 2 in. above the spine of the epistropheus, is the external occipital protuberance (inion). In the child the protuberance is not developed; its position may be denned by taking a point at the junction of the upper and 'middle thirds of a line extending from the posterior pole of the skull to the spine of the epi- stropheus. About a third of the distance from the nasion to the inion is the bregma or junction of the coronal and sagittal sutures; with the head in the natural erect posture the bregma corresponds to the middle of a line carried across the vertex between the pre-auricular points of the zygomatic arches. At birth the position of the bregma is occupied by the anterior fontanelle, a rhom- boidal membranous area which generally becomes ossified at about the eighteenth month. The size and date of closure of the fontanelle, as well as its tension and pulsa- tion,
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
