The word "nearthrosis" is spelled with a silent "n" at the beginning, followed by "e-a-r" to represent the sound of "er." The "th" is pronounced as "θ," similar to the "th" sound in the word "thing." The "r" after "th" is rolled, creating a trill sound. The final "o-s-i-s" is pronounced as "oh-sis," with stress on the second syllable. Nearthrosis refers to a type of joint in which bones are held together by cartilage rather than ligaments.
Nearthrosis is a term used in anatomy and medicine to describe a type of joint that permits only limited movement or is partially movable. It refers to a fibrous or cartilaginous joint where the bones are connected by dense connective tissue or hyaline cartilage, allowing only a small degree of movement. This joint classification is intermediate between a synarthrosis, which allows no movement, and a diarthrosis, which allows free movement.
The term "nearthrosis" is derived from the Greek words "nea," meaning new, and "arthron," meaning joint. It often applies to structural joints in the human body that provide stability and support rather than allowing extensive movement. Examples of nearthrosis joints include the sutures between the bones of the skull, which are united by dense fibrous connective tissue, or the joints between the vertebrae of the spine, which have limited movement due to the presence of intervertebral discs and the surrounding ligaments.
Nearthroic joints are crucial for maintaining the integrity and stability of the skeletal system and protecting vital organs. While they may not be as mobile as other joint types, they provide protection against excessive movement, reducing the risk of injury and supporting the body during physical activities.
Pseudarthrosis, false joint.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.