. The cat : an introduction to the study of backboned animals, especially mammals. Cats; Anatomy, Comparative. THE CAT. [CHAP. noticed. The condyles (c) are elongated convex prominences placed somewhat obliquely, converging forwards. The inner border of each is rough, for the attachment of one of the " check " ligaments. In front of each condyle is a perforation, the anterior condyloid foramen (1), which allows the hypoglossal nerve to pass out from the brain, while a canal (the hinder opening of which is a little within the margin of the foramen magnum) traverses the ex- occip
. The cat : an introduction to the study of backboned animals, especially mammals. Cats; Anatomy, Comparative. THE CAT. [CHAP. noticed. The condyles (c) are elongated convex prominences placed somewhat obliquely, converging forwards. The inner border of each is rough, for the attachment of one of the " check " ligaments. In front of each condyle is a perforation, the anterior condyloid foramen (1), which allows the hypoglossal nerve to pass out from the brain, while a canal (the hinder opening of which is a little within the margin of the foramen magnum) traverses the ex- occipital on its inner aspect. External to each condyle is an expanded process of bone called the par-occipital process (p), the front surface of which is applied to the posterior surface of the auditory bulla. The root of the par-occipital process forms the hinder boundary of the aperture of the skull through which the jugular vein comes out, which aperture is called the foramen lacerum jagalare, or foramen lacerum posterius. A small triangular bone, the interparietal, in the fully mature cat blends completely with the supra-occipital, but long remains a distinct ossicle. Its base is applied to the mid-part of the superior border of the occipital, while its sharp apex extends forwards between the parietals. It is strongly con- cave within (especially in the transverse direction), but is convex externally. If this be counted as a part of the occipital, that bone may be said to articulate above by its superior margin with the parietals, and below this, on each side, with the hinder margin of one of the temporal bones, while each par-occipital process (as before said) applies itself to the hinder end of one of the ordinary bullae. The basi-occipital adjoins the hinder part of the bone next in front, namely the sphenoid. § 24. The parietal bone forms, with its fellow of the opposite side, the main part of the roof of the cranium. It would be quadrangular in figure but that its upper,
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectanatomy, bookyear1881
