The bone of a fetus are composed mainly of cartilage.
Elastic cartilage.
cartillage
Cartilage.
true the first "long bones" in fetus are formed of hyaline cartilage
yes
At the time of birth a child has 300 bones but these bones fuse with each other as the child grows up and at adulthood the figure drops to 206.
Fetus=33 Adult=24 The 5 sacral and 4 coccyx bones of the fetus fuse together - that's why adults only have 24
Bone starts as cartilage in the fetus. As the fetus takes on the final shape, this cartilage arranges, and enough hardening occurs in the limbs to allow the creature to stand shortly after birth. At that point, all the bones begin to harden, and continues to harden all throughout life. Bones contain a level of cartilage all the way until old age.
Hyaline Cartilage
true the first "long bones" in fetus are formed of hyaline cartilage
yes
False.
Hyaline cartilage
It takes 26-40 weeks for a fetus' bones to fully develop.
4
4
because fetal bones fuse together
Calcium is used to form bones
Calcium is used to form bones
Calcium is used to form bones