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[Studies on the development of fetus scapula]
T Akiyoshi1, K Kugino, H Nagasaki
1Department of Anatomy, Saga Medical School.
Fukuoka Igaku Zasshi = Hukuoka Acta Medica
|May 16, 1998
Summary
Fetal scapula (shoulder blade) grows proportionally with fetal height. Fetal scapula shape, distinct from adults, resembles ancient human scapulae, offering insights into developmental morphology.
Area of Science:
- Anatomy
- Developmental Biology
- Anthropology
Context:
- Saga Medical College received fetal specimens for analysis.
- Fetal scapulae were measured and statistically processed.
- Image processing was employed to analyze morphological characteristics.
Purpose:
- To extract and measure fetal scapulae.
- To statistically analyze scapular dimensions and morphology.
- To compare fetal scapular characteristics with adult and ancient human forms.
Summary:
- Fetal scapular length and height increase proportionally with overall fetal height.
- The fetal scapular height-to-length index is higher than in adults, particularly in early development.
- Fetal spinal axis angle is larger than in adults and differs significantly from anthropoids.
- Fetal scapulae are generally short and wide, resembling those of Jomon period people.
- Cartilage width decreases with ossification, but cartilage area increases due to faster lengthwise growth.
Impact:
- Provides detailed morphometric data on fetal scapular development.
- Highlights significant differences between fetal and adult scapular morphology.
- Offers comparative insights into human evolutionary and developmental anatomy.