Skeletal system

cranial suture between the temporal squama and the parietal bone

Direct ossification that occurs within mesenchyme or an accumulation of relatively unspecialized cells.

thumb|Tyrannosaurus foot showing the compressed arctometatarsalian condition of the middle [[metatarsal, compared to that of Allosaurus]] An arctometatarsalian organism is one in which the proximal part of the middle metatarsal is pinched between the surrounding metatarsals. The trait appears to be highly homoplastic, common in certain sorts of dinosaurs accustomed to running (among them the tyrannosauroids, ornithomimosaurs, and troodontids), to evenly transmit force to the metatarsals.

thumb|A pair of AFO (Ankle Foot Orthosis) braces being used to aid bilateral foot drop Orthotics (), also known as orthology, is a medical specialty that focuses on the design and application of orthoses, sometimes known as braces, calipers, or splints. An is "an externally applied device used to influence the structural and functional characteristics of the neuromuscular and skeletal systems." Orthotists are medical professionals who specialize in designing orthotic devices such as braces or foot orthoses.

cranial suture between the occipital bone and the temporal bone

auricular surface

alt=|thumb|534x534px|Cleithrum and Scapula#In other animals|scapula from a [[wrasse. The larger bone is the cleithrum.]] The cleithrum (: cleithra) is a membrane bone which first appears as part of the skeleton in primitive bony fish, where it runs vertically along the scapula. Its name is derived from Greek κλειθρον = "key (lock)", by analogy with "clavicle" from Latin clavicula = "little key".

cranial suture

suture between the ethmoid bone and the frontal bone

protrusion or eminence of a bone that serves as an attachment for skeletal muscles

The postcranium ("behind the cranium"; plural: postcrania) or postcranial skeleton in zoology and vertebrate paleontology is the skeleton apart from the skull. The postcranium encompasses the axial skeleton, which includes the entirety of the vertebrae and ribs, and the appendicular skeleton, which includes girdles and limbs.

anatomical feature of the human skull

cranial suture between the sphenoid bone and the parietal bone

Rigid joint between zygomatic bone (cheekbone) and temporal bone

cranial suture between the sphenoid bone and the frontal bone

Openings in the bone

thumb|Skull dome of Stegoceras (AMNH 5450) showing cross-section thickness

cranial suture between the sphenoid bone and the zygomatic bone

prominent bulge of the occipital bone at the back of the skull

rounded outgrowth on the pubic bone

thumb|A diaphonized mirror dory. The bones are dyed red and the cartilage is dyed blue. thumb|Diaphonized veiled chameleon. [[Field Museum of Natural History, Chicago.]] Diaphonization (or diaphonisation), also known as clearing and staining, is a staining technique used on animal specimens that first renders the body of the animal transparent by bathing it in trypsin, and then stains the bones and cartilage with various dyes, usually alizarin red and alcian blue.

fairly rigid joint between two or more hard elements of an organism

Xiphodynia or Xiphoidalgia is thought to be a rare musculoskeletal syndrome that involves referred pain referred from the xiphisternal joint or the structures attached to the xiphoid process. Digital examination of the xiphoid process reproduces symptoms. Xiphodynia is in fact a relatively common condition which will be missed unless considered in the differentials list. It is caused by inflammation of the junction between the sternum and xiphoid process.

point where ossification of the cartilage begins

neurosurgical procedure performed on the spinal cord