Limb Development
Embryology
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Musculoskeletal & Nervous Systems
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Musculoskeletal System
Q. During week 6, which of the following is true?
a
Each limb bud comprises a core of loose mesenchyme covered in ectoderm, with an ***apical ectodermal ridge (AER) at the tip***
b
Endochondral ossification begins.
c
Thumb and big toe are oriented in opposite directions.
d
Mesenchymal models begin to transition to hyaline cartilage (via chondrification).
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