Development of the limbs
Development of the limbs
Organ system development
Cardiovascular system
Eyes, ears, nose, and throat
Gastrointestinal system
Integumentary system
Musculoskeletal system
Nervous system
Renal system
Reproductive system
Respiratory system
Flashcards
Development of the limbs
0 of 25 complete
Key Takeaways
The limbs (arms and legs) develop around the 4th week of gestation. They develop from buds that form along the sides of the body, which start to grow into long, thin structures called "limb buds" in a proximal-to-distal direction. Limb buds consist of a central core of mesenchymal cells, covered with a layer of ectoderm.