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The plantar muscle in human fetuses
D Gościcka1, W Stankiewicz, M Szpinda
1Department of Anatomy, Academy of Medicine, Bydgoszcz.
Folia Morphologica
|January 1, 1994
Summary
Human fetal plantar muscles show reduction due to slower belly development compared to tendons. This study compares these muscle reduction mechanisms with the long palmar muscle.
Area of Science:
- Embryology
- Human Anatomy
- Developmental Biology
Background:
- Understanding fetal muscle development is crucial for diagnosing congenital abnormalities.
- Previous research has indicated variations in muscle and tendon growth rates during gestation.
Purpose of the Study:
- To investigate and quantify the reduction in human fetal plantar muscles.
- To compare the developmental mechanisms of plantar muscle reduction with those of the long palmar muscle.
Main Methods:
- Study involved macroscopic analysis and measurement of 100 plantar muscles from 50 human fetuses.
- Fetuses ranged from the 4th to 8th month of intra-uterine development.
- Comparative analysis with data on long palmar muscle development was performed.
Main Results:
- A significant reduction in plantar muscle size was observed.
- The ratio of muscle belly to tendon development was found to be 1:6.
- Developmental disparities between muscle belly and tendon growth underlie this reduction.
Conclusions:
- The plantar muscle exhibits a notable reduction during fetal development, primarily due to differential growth rates between its belly and tendon.
- Comparing these findings with the long palmar muscle offers insights into common mechanisms of muscle reduction in human fetuses.