Century Dictionary and Cyclopedia
- Situated in advance of the ear, as a tuft of hair; specifically, in anthropology, relating to that part of the skull, particularly of the circumference of the skull, which is situated in front of the outer ear.
“To define the central sulcus (fissure of Rolando) two points are taken; one is situated 1.25 cm. behind the center of the line joining the nasion and inion; the second is at the intersection of the line of the posterior ramus of the lateral cerebral fissure with a line through the preauricular point at right angles to Reids base line.”
“The meeting-point of the coronal and sagittal sutures; it lies at the point of intersection of the middle line of the scalp with a line drawn vertically upward through the preauricular point.”
“An alternative method is to draw two perpendicular lines from Reids base line to the top of the head; one from the preauricular point and the other from the posterior border of the mastoid process at its root.”
“Below and in front of the auricular surface is the preauricular sulcus, more commonly present and better marked in the female than in the male; to it is attached the pelvic portion of the anterior sacroiliac ligament.”
“The preauricular sulcus is more commonly present and better marked.”
“The anterior auricular glands (lymphoglandulæ auriculares anteriores; superficial parotid or preauricular glands), from one to three in number, lie immediately in front of the tragus.”
“The anterior sacroiliac ligament consists of numerous thin bands, which connect the anterior surface of the lateral part of the sacrum to the margin of the auricular surface of the ilium and to the preauricular sulcus.”
“The instance of an infant born with two ears on the right side (No. 10) was doubtless one of cervical auricle or preauricular appendage, whilst closure of the external auditory meatus (No. 11) is a well-known deformity.”
“Reverdin describes a man having a supernumerary nipple on the right side of his chest, of whose five children three had preauricular appendages.”
“As a rule, supernumerary auricles are preauricular appendages.”
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