Limb Development
Embryology
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Musculoskeletal & Nervous Systems
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Musculoskeletal System
Q. During week 4, which of the following is true regarding limb development?
a
Each limb bud comprises a core of loose mesenchyme covered in ectoderm, with an ***apical ectodermal ridge (AER) at the tip***
b
Mesenchymal models of bones form within the mesenchymal cores.
c
Cartilaginous digital rays (fingers) and carpals begin to form within the hand
d
None of the above occurs in week 4 of limb development.
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