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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 word rabbit derives from the Middle English rabet ("young of the coney"), a borrowing from the Walloon robète, which was a diminutive of the French or Middle Dutch robbe ("rabbit"), a term of unknown origin. [1] The term coney is a term for an adult rabbit used until the 18th century; rabbit once referred only to the young animals. [2]
The base of skull, also known as the cranial base or the cranial floor, is the most inferior area of the skull. It is composed of the endocranium and the lower parts of the calvaria . Structure
This is a list of human anatomy mnemonics, categorized and alphabetized.For mnemonics in other medical specialties, see this list of medical mnemonics.Mnemonics serve as a systematic method for remembrance of functionally or systemically related items within regions of larger fields of study, such as those found in the study of specific areas of human anatomy, such as the bones in the hand ...
The jugal bone is located on either side of the skull in the circumorbital region. It is the origin of several masticatory muscles in the skull. [1] The jugal and lacrimal bones are the only two remaining from the ancestral circumorbital series: the prefrontal, postfrontal, postorbital, jugal, and lacrimal bones.
The Flemish Giant originated in Flanders.It was bred as early as the 16th century near the city of Ghent, Belgium.It is believed to have descended from a number of meat and fur breeds, possibly including the Steenkonijn ("Stone Rabbit"—referring to the old Belgian weight size of one stone or about 3.8 kilograms (8.4 lb)) and the European "Patagonian" breed (now extinct).
Instead, the skull is composed of loosely jointed bones. The cranial vault as a distinct unit arose with the fusion of the skull roof and the endocranium on the early Labyrinthodonts . [ 2 ] In amphibians and reptiles , the vault is rather small and inconspicuous, only forming proper vaults in mammals and birds .
The squamosal is a skull bone found in most reptiles, amphibians, and birds. In fishes, it is also called the pterotic bone. [1] In most tetrapods, the squamosal and quadratojugal bones form the cheek series of the skull. [2] The bone forms an ancestral component of the dermal roof and is typically thin compared to other skull bones. [3]