Search results
Results from the WOW.Com Content Network
Such vertebrae are found in the necks of birds and some turtles. [23] An example of procoelous vertebrae dissected from a rattlesnake. "Procoelous" vertebrae feature a spherical protrusion extending from the caudal end of the centrum of one vertebra that fits into a concave socket on the cranial end of the centrum of an adjacent vertebra. [24]
The placement of hagfishes on the vertebrate tree of life has been controversial. Their lack of proper vertebrae (among other characteristics of jawless lampreys and jawed vertebrates) led phylogenetic analyses based on morphology to place them outside Vertebrata. [52] Molecular data, however, indicates they are vertebrates closely related to ...
3D medical animation still shot of human skull. The axial skeleton is the core part of the endoskeleton made of the bones of the head and trunk of vertebrates.In the human skeleton, it consists of 80 bones and is composed of the skull (28 bones, including the cranium, mandible and the middle ear ossicles), the vertebral column (26 bones, including vertebrae, sacrum and coccyx), the rib cage ...
The number of vertebrae in a region can vary but overall the number remains the same. In a human spinal column, there are normally 33 vertebrae. [3] The upper 24 pre-sacral vertebrae are articulating and separated from each other by intervertebral discs, and the lower nine are fused in adults, five in the sacrum and four in the coccyx, or tailbone.
From the plural form: This is a redirect from a plural noun to its singular form. This redirect link is used for convenience; it is often preferable to add the plural directly after the link (for example, [[link]]s ).
Several cervical, dorsal, and sacral vertebrae with one rib [121] One of the holotype vertebra from multiple views: Austrosaurus mckillopi: QM F2361 [122] Queensland Museum [122] Albian [122] Allaru Formation, Queensland [122] Vertebrae and rib fragments [122] One of the vertebra from the holotype: Baalsaurus mansillai: MUCPv-1460 [123 ...
The lumbar vertebrae are located between the thoracic vertebrae and pelvis. They form the lower part of the back in humans, and the tail end of the back in quadrupeds. In humans, there are five lumbar vertebrae. The term is used to describe the anatomy of humans and quadrupeds, such as horses, pigs, or cattle.
The calcaneum (plural: calcanea [1]) is a major bone of the ankle (at the rear of the foot), and together with the astragalus forms the upper row of tarsal bones. It is located lateral to the astragalus and distal to the fibula. [9] caputegulum Caputegulae (Latin "skull tiles") are flat bones covering the skull bones of ankylosaurs.