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A synchondrosis (or primary cartilaginous joint) is a type of cartilaginous joint where hyaline cartilage completely joins together two bones. [1] Synchondroses are different from symphyses (secondary cartilaginous joints), which are formed of fibrocartilage , and from synostosis (ossified junctions), which is the fusion of two or more bones.
Some examples of secondary cartilaginous joints in human anatomy would be the manubriosternal joint (between the manubrium and the body of the sternum), intervertebral discs, and the pubic symphysis. Articulating bones at a symphysis are covered with hyaline cartilage and have a thick, fairly compressible pad of fibrocartilage between them.
For example, Shigella is a longstanding World Health Organization (WHO) target for vaccine development, and sharp declines in age-specific diarrhea/dysentery attack rates for this pathogen indicate that natural immunity does develop following exposure; thus, vaccination to prevent this disease should be feasible. The development of vaccines ...
The secondary metabolites of this fungus have shown to possess antibacterial activities that manifest the potential to inhibit human pathogens. [19] For example, α- Campholene aldehyde, Lucenin-2 and 6-Ethyloct- 3-yl- 2- ethylhexyl ester are the three secondary metabolites that showed antimicrobial effects against potential human pathogens. [19]
Cervical rib; Fabella; Foramen tympanicum; Supracondylar process of the humerus; Sternal foramen; Stafne bone cavity; Episternal ossicles; Fossa navicularis magna
Side view of the skull Human skull side sutures right. A suture is a type of fibrous joint that is only found in the skull (cranial suture). The bones are bound together by Sharpey's fibres. A tiny amount of movement is permitted at sutures, which contributes to the compliance and elasticity of the skull. These joints are synarthroses. [1]
The only exception is the first rib, which has a synchondrosis joint since the cartilage is directly united with the sternum. [1] The sternocostal joints are important for thoracic wall mobility. [2] The ligaments connecting them are: Articular capsules; Intraarticular sternocostal ligament; Radiate sternocostal ligaments; Costoxiphoid ligaments
In humans, as in other animals, the plates of the cranium fuse with dense fibrous connective tissue as a child approaches adulthood. [2] Children whose cranial plates fuse too early may suffer deformities and brain damage as the skull does not expand properly to accommodate the growing brain, a condition known as craniosynostosis .