. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 524 RUMINANTIA. or ten such bundles may be remarked in different species. In the first place we have a broad band extending from the fore-part of the neck, and spreading toward the lips and forehead ; this constitutes the musculus cu- taneous faclci. Again, it is very strongly marked at the neck, especially in the Sheep ; here it is denominated the m. cutan. colli. In other domestic animals of the non-ruminant kind, such as the Dog, Cat, and Pig, this se- cond division of the fleshy envelope is still more striking. Over
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 524 RUMINANTIA. or ten such bundles may be remarked in different species. In the first place we have a broad band extending from the fore-part of the neck, and spreading toward the lips and forehead ; this constitutes the musculus cu- taneous faclci. Again, it is very strongly marked at the neck, especially in the Sheep ; here it is denominated the m. cutan. colli. In other domestic animals of the non-ruminant kind, such as the Dog, Cat, and Pig, this se- cond division of the fleshy envelope is still more striking. Over the shoulder of the Ox there is a third layer of thickened fasiculi (m. cutan. humeri) ; and lastly, we find a highly developed mass, taking its origin from the fascia lata of the thii;h immediately above the patella, and proceeding forward, the fibres radiate toward tne scapula in front and the abdomen below ; this is the in. cutan. maximus sen abdominis. The insertion of the panniculus is directly into the skin, which everywhere covers it, and " on this texture it can alone act, seeing it is completely isolated from the deeper seated parts, by an universal layer of fascia, which thus enables it to slide more freely upon them. When in action, the fibres throw the skin into folds that form right angles to their general course ; the chief points from which they act being the angle of the jaw, the scapula, the patella, and the ;* The principal function appears to be that of serving as an instrument of de- fence. By its action animals have the power of jerking and shaking the skin, thus removing irritating matters, — also of erecting bristles and spines as instanced by the defensive armature of the Hedgehog,—and in aiding the process of lactation, as obtains in the Marsupiatae. Were it not for the constant and involuntary action of the muscle, the torture (to which many animals, particularly cattle, are subjected, from the stings and bites of flies and other i
Size: 2408px × 1037px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, booksubjectanatomy, booksubjectphysiology, booksubjectzoology
