Description: Skull of nestling Sparrow-hawk (Accipiter nisus), palatal view. The circular space on each side of the basi-temporal (bt.) is the opening of the anterior tympanic recess. The basi-pterygoids (bpg) are mere knobs, and the common eustachian opening is seen between them. the maxillo-palatine plates (mxp) are dotted to show their spongy character. bt, Basi-temporal. bpg, Basi-pterygoid. eo, Lateral occipital. f, Frontal. fm, Foramen magnum. j, Jugal. l, Lacrymal. mpg, Mesopterygoid process of W. K. Parker. mx, Maxillary. mxp, Maxillo-palatine process. op, Ophisthotic. pa, Palatine. pg, Pterygoid. px, Premaxilla. pto, Proötic, q, Quadrate, qj, Quadratojugal, sn, Nasal septum. so, Supra-occipital. ty, Tympanic cavity. v, Vomer, 8, Exit of vagus nerve. 9, Exit of hypo-glossal nerve. (After W. K. Parker.). Date:. Source: 1911 EB, Vol. 3, Page 961. Author: Encyclopedia Britannica. Permission (
Reusing this file): public domain.