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English: Skeleton of a dog: A – Cervical or Neck Bones (7 in number). B – Dorsal or Thoracic Bones (13 in number, each bearing a rib). C – Lumbar Bones (7 in number).D – Sacral Bones (3 in number). E – Caudal or Tail Bones (20 to 23 in number). 1 – Cranium, or Skull. 2 – Maxilla. 3 – Mandible, or Lower jaw . 4 – Atlas. 5 – Axis.
The parts of the head are the nose, muzzle, stop, forehead or braincase, occiput (highest point of the skull at the back of the head), ears, eyes, eyebrows or brows, whiskers, flews (lips, which may hang down), and cheeks. Dog heads are of three basic shapes: [4] Apple-headed refers to a dog's head that is round on top, not flat.
The domestic dog compared to the wolf shows the greatest variation in the size and shape of the skull (Evans 1979) that ranges from 7 to 28 cm in length (McGreevy 2004). Wolves are dolichocephalic (long-skulled) but not as extreme as some breeds of dogs, such as greyhounds and Russian wolfhounds (McGreevy 2004).
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Cephalic index viewed from above the head. The cephalic index or cranial index is a number obtained by taking the maximum width (biparietal diameter or BPD, side to side) of the head of an organism, multiplying it by 100 and then dividing it by their maximum length (occipitofrontal diameter or OFD, front to back). The index was once used to ...
The stop is well defined, forming a near-90-degree angle where the muzzle meets the skull. [3] Dogs of the older "deer" type, with a flat-topped head, more widely set eyes, larger ears, and longer, more slender legs, may still be registered, but the deer head is not considered a separate type in competition and a deer-head dog's digression from ...
Brachycephaly (derived from the Ancient Greek βραχύς, 'short' and κεφαλή, 'head') is the shape of a skull shorter than average in its species.It is perceived as a cosmetically desirable trait in some domesticated dog and cat breeds, notably the pug and Persian, and can be normal or abnormal in other animal species.
An image of the forensic model of a Neolithic dog skull found at Cuween Hill Chambered Cairn, Orkney, Scotland was published by Sci-News.com on April 22, 2019. Forensic artist Amy Thornton made a model of the dog's head using a 3D print, based on a CT scan made at the Royal (Dick) School of Veterinary Studies of one of the 24 canine skulls ...