os sesamoideum
Noun A sesamoid bone is a small, round, or oval-shaped bone that is embedded within a tendon. These bones typically form at locations where a tendon passes over a joint. Their primary function is to protect the tendon and to improve its mechanical efficiency by altering the angle of the tendon's pull, thereby increasing leverage.
The term sesamoid bone is used in anatomical and medical contexts to describe these specific bone structures. It is a technical term.
Examples - The patella, or kneecap, is the largest sesamoid bone in the human body. - An X-ray revealed a fracture in a sesamoid bone of the foot. - Sesamoid bones are commonly found in the hands and feet.
- Sesamoiditis: This is a medical condition referring to inflammation of the tendons surrounding the sesamoid bones and the bones themselves, often causing pain. (Note: This is a related medical term, not a variant of "sesamoid bone").
- The presence and number of sesamoid bones can vary between individuals; they are not always present in every person.
- Sesamoid (adjective): Pertaining to or having the nature of a sesamoid bone.
- Example: The surgeon examined the sesamoid cartilage.
- Os sesamoideum: This is the full Latin anatomical term from which "sesamoid bone" is derived. It is synonymous but less commonly used in everyday English medical discussion.
- Sesamoid (when used as a noun in anatomical context)
- Intercalary bone (a less common synonym)
The term refers specifically to the anatomical structure. There are no idioms or phrasal verbs associated with this precise technical term. Its meaning is consistent and specialized within the fields of anatomy, orthopedics, and veterinary science.
- any of several small round bones formed in a tendon where it passes over a joint