Definition: Abiosis, also known as anisotropia, occurs when one part of a body's skeleton has less bone than another in proportion. This condition can affect many aspects of life, such as strength, flexibility, mobility, vision, and hearing. Abiosis can be caused by a variety of factors including congenital abnormalities, trauma, infection or nutritional deficiencies. The term is derived from the Greek words 'a' (representing less) and 'bias' meaning 'difference.' It was first used in the 17th century to describe an abnormality in bones due to lack of bone marrow. The name was later modified to reflect the concept that bone formation differs between two bodies, with one body lacking the required amount of bone compared to the other. An example of abiosis is seen in children who have a missing third of their body's skeleton, causing them to have less bone mass and weaker bones than expected. This condition can cause a range of problems from weak limbs and coordination difficulties to reduced muscle strength and poor vision. In severe cases, anisotropia may lead to permanent deformities or even death if not treated promptly. Understanding the concept of abiosis is important because it helps in diagnosing and managing conditions that affect bone health and development. Early detection and treatment can improve outcomes and reduce the risk of complications such as osteoporosis, which is a common consequence of anisotropia.

abiosis