HORTICULTURE

HORTICULTURE SCIENCE

ENTOMOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why does an infants skeleton contain a higher number of bones?
A
They are born with many bones that have not fused completely
B
They are mutant ninja bebes
C
They are born with bones that eventually turn into cartilage
D
all of the above
Explanation: 

Detailed explanation-1: -Babies have more bones than adults because as they grow up, some of the bones fuse together to form one bone. This is because babies have more cartilage than bone. New born babies have around 305 bones. A baby’s skeleton is mostly made up of cartilage.

Detailed explanation-2: -The spaces between a typical baby’s skull bones are filled with flexible material and called sutures. These sutures allow the skull to grow as the baby’s brain grows. Around two years of age, a child’s skull bones begin to join together because the sutures become bone.

Detailed explanation-3: -Some of a baby’s bones are made entirely of a special material called cartilage (say: KAR-tel-ij). Other bones in a baby are partly made of cartilage. This cartilage is soft and flexible. During childhood, as you are growing, the cartilage grows and is slowly replaced by bone, with help from calcium.

Detailed explanation-4: -A baby has more bones than an adult because the baby’s cartilage will eventually turn into bone. This happens through a process called endochondral ossification. As the baby grows, cartilage is replaced by bone matrices.

Detailed explanation-5: -Changing bone as babies grow As your baby grows into childhood, much of that cartilage will be replaced by actual bone. But something else happens, which explains why 300 bones at birth become 206 bones by adulthood. Many of your baby’s bones will fuse together, which means the actual number of bones will decrease.

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