Uncinate Process (other)
An uncinate process is a hook-shaped projection or protuberance from a bone or organ. It may refer to: * Uncinate process of ethmoid bone, a process located in the nasal cavity * Uncinate process of vertebra, a hook-shaped process on the lateral borders (side edges) of the superior (top) surface of the vertebral bodies of the third to the seventh cervical vertebrae * Uncinate process of pancreas, a small projection from the pancreas * Uncinate processes of ribs The uncinate processes of the ribs are extensions of bone that project caudally from the vertical segment of each rib. (Uncinate means ''hooked'' from Latin ''uncinatus'', from ''uncinus'', barb, from ''uncus'', hook.) They are found in birds (ex ...

Uncinate Process Of Ethmoid Bone
In the ethmoid bone, a sickle shaped projection, the uncinate process, projects posteroinferiorly from the ethmoid labyrinth. Between the posterior edge of this process and the anterior surface of the ethmoid bulla, there is a two-dimensional space, resembling a crescent shape. This space continues laterally as a three-dimensional slit-like space - the ethmoidal infundibulum. This is bounded by the uncinate process, medially, the orbital lamina of ethmoid bone (lamina papyracea), laterally, and the ethmoidal bulla, posterosuperiorly. This concept is easier to understand if one imagine the infundibulum as a prism so that its medial face is the hiatus semilunaris. The "lateral face" of this infundibulum contains the ostium of the maxillary sinus, which, therefore, opens into the infundibulum. Variations The uncinate process can be attached to either the lateral nasal wall, on the lamina papyracea (50%), the anterior cranial fossa, on the ethmoidal roof (25%), or the middle concha (2 ...
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Uncinate Process Of Vertebra
The spinal column, a defining synapomorphy shared by nearly all vertebrates,Hagfish are believed to have secondarily lost their spinal column is a moderately flexible series of vertebrae (singular vertebra), each constituting a characteristic irregular bone whose complex structure is composed primarily of bone, and secondarily of hyaline cartilage. They show variation in the proportion contributed by these two tissue types; such variations correlate on one hand with the cerebral/caudal rank (i.e., location within the backbone), and on the other with phylogenetic differences among the vertebrate taxa. The basic configuration of a vertebra varies, but the bone is its ''body'', with the central part of the body constituting the ''centrum''. The upper (closer to) and lower (further from), respectively, the cranium and its central nervous system surfaces of the vertebra body support attachment to the intervertebral discs. The posterior part of a vertebra forms a vertebral arch ...
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Uncinate Process Of Pancreas
The uncinate process is a small part of the pancreas. The uncinate process is the formed prolongation of the angle of junction of the lower and left lateral borders in the head of the pancreas. The word "uncinate" comes from the Latin "uncinatus", meaning "hooked". Structure Development The pancreas arises as two separate bodies, the dorsal pancreas and the ventral pancreas. The dorsal pancreas appears first, at around day 26, opposite the developing hepatic duct, and grows into the dorsal mesentery. The ventral pancreas develops at the junction of the hepatic duct and the rest of the foregut. During development, differential growth of the wall of the stomach causes it to rotate to the left, and the liver and stomach undergo a lot of growth. This makes the two parts of the pancreas rotate around the duodenum. They then fuse; the dorsal pancreatic bud becomes the body, tail, and isthmus of the pancreas. The isthmus (also called the central pancreas) is the region of the gland that ...
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