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Andre45 [30]
3 years ago
8

True during development the skeleton of a fetus is made of cartilage which is converted to bone before birth

Biology
1 answer:
yawa3891 [41]3 years ago
8 0

Answer:

Early in gestation, a fetus has a cartilaginous skeleton that becomes bone in ... At birth, a newborn baby has over 300 bones, while on average an adult human has 206 bones ... It is composed of fibers and granular cells in a matrix. ... The hypertrophic chondrocytes (before apoptosis) secrete vascular endothelial cell growth ...

Explanation

n:When does the fetal cartilage turn to bone?

Key milestones in fetal bone development

Weeks pregnant Milestone

7 weeks Bone outlines for entire skeleton established; cartilage is forming

8 weeks Somites disappear; joints start forming

10 weeks Bone tissue forms and starts hardening (ossification)

16 weeks Your baby can move his limbs

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