Related Experiment Videos
Epiphyseal vascularization during growth: the upper limb.
Annales De Chirurgie De La Main : Organe Officiel Des Societes De Chirurgie De La Main
|January 1, 1984
Summary
The vascular networks in fetal upper limb physes are crucial for bone development and health from early fetal life. This study details their intricate structure and function in long bones.
Area of Science:
- Anatomy
- Vascular Biology
- Developmental Biology
Background:
- The physes (growth plates) of long bones are critical for skeletal development.
- Understanding the vascular supply to these structures is essential for comprehending bone growth and health.
Purpose of the Study:
- To investigate the intracartilaginous and intraosseous vascular networks of the physes in the upper limb long bones.
- To describe the vascular patterns and their role in ossification and bone trophicity.
Main Methods:
- Injection of India ink and plastic material (Batson's technique) into the subclavian artery of 60 fetal, newborn, and child cadavers.
- Microdissection of vascular sources and serial sectioning of epiphyseal plates in multiple planes.
Main Results:
- Detailed mapping of the arterial and capillary networks within the physes of upper limb long bones.
- Identified a consistent vascular pattern with three entries in most epiphyses, except the distal ulna.
- Demonstrated the presence and importance of this circulation from the third week of fetal life onwards.
Conclusions:
- The described physeal vascularization is fundamental for ossification of epiphyseal cartilage.
- This circulation is vital for the trophicity of the bone supporting articular surfaces throughout life.
- The vascular pattern of upper limb epiphyses is generally consistent, with specific variations noted.