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The skeleton is not unchanging; it changes composition over a lifespan. Early in gestation, a fetus has no hard skeleton; bones form gradually during nine months in the womb. At birth, all bones will have formed, but a newborn baby has more bones than an adult. On average, an adult human has 206 bones (according to Gray's Anatomy, but the number can vary slightly from individual to individual), but a baby is born with approximately 300 bones. The difference comes from a number of small bones that fuse together during growth, such as the sacrum and coccyx of the vertebral column. An infant is born with pockets of cartilage between particular bones to allow further growth. The sacrum (the bone at the base of the spine) consists of five bones which are separated at birth but fuse together into a solid structure in later years. Growing is usually completed between ages 13 and 18, at which point the bones have no pockets of cartilage left to allow more growth.
http://en.wikipedia.org/wiki/Human_skeleton

2007-01-24 14:33:29 · answer #1 · answered by Anonymous · 2 0

An adult has 206 bones and a baby has more than that but a baby is born with approximately 270 bones

2007-01-24 22:29:50 · answer #2 · answered by ஐ♥Julian'sMommy♥ஐ 7 · 0 0

hi actually i don`t how many exactly 100% but i know baby 216 while they grow up some bones get together so adult become 206

2007-01-24 22:50:59 · answer #3 · answered by ***** 2 · 0 0

A baby has more bones than an adult....simply because their bones have not fused together, making their passage through the birth canal possible.....not sure how many total, though, they must've missed that info in my birthing class....LOL.

2007-01-24 22:26:09 · answer #4 · answered by salemgirl1972 4 · 0 0

Both have 206, even though the bones in our skulls are fused, they still count as separate bones.

2007-01-24 23:41:43 · answer #5 · answered by squire_rhiannon 3 · 0 0

If i'm not wrong a newborn has more bones becos some of their bones have not fused together yet. But i am not sure how many.

2007-01-24 22:26:18 · answer #6 · answered by yminisa 1 · 0 0

Sounds like a homework question.

Think about it...did you grow any new bones since you were a baby?

2007-01-24 22:26:30 · answer #7 · answered by S. W 4 · 1 0

We all have the same number of bones, 206.

2007-01-24 22:27:20 · answer #8 · answered by Emily & her mommy love Da Bears! 6 · 1 1

i think a baby have more. because adult bones fuse together..thats why we are more flexable when we are kids.
make any sense?

2007-01-24 22:25:51 · answer #9 · answered by Cartman 3 · 0 0

A newborn does.

2007-01-24 22:27:09 · answer #10 · answered by Angel 2 · 0 0

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