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estrogen directly causes the epiphyseal plates to close, testosterone is converted to estradiol (estrogen) by aromatase, therefore testosterone causes the epiphyseal plates to close indirectly

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13y ago
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13y ago

Rising levels of sex hormones, particularly estrogen, growth hormone and thyroid hormones stimulate osteoblast activity. Osteoblasts produce bone (from epiphyseal cartilage) faster than chondrocytes can produce epiphyseal cartilage. As a result the osteoblasts 'catch up' and the epiphyseal cartilage narrows until it ultimately dissappears. This occurs at puberty, but if children have significantly high levels of estrogen during childhood this will cause the epiphyseal plates to close earlier.

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Q: Why epiphyseal closes early?
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Related questions

Can you see an epiphyseal plate on a open dried femur bone?

Not if it is a femur from a skeletally mature individual. The epiphyseal plate of the femur closes at around age 17 or 18. After this age, you would not see the epiphyseal plate, but you should be able to see the physis (or physeal) scar. This is the point at which the epiphysis and metaphysis have fused.


The cartilage that is located at the end of long bones that closes when growth ceases is called the plate?

Epiphyseal - Located on each side of the long bone.


Difference between epiphyseal plate and epiphyseal line?

Cartilage plate that servs as a growth area along the bone lenghing, it allows the dialysis of the bone to increase in length until early adulthood. When growth stops the epiphyseal plate is replaced with bone, then becoming the epiphseal line.


This is a layer of hyaline cartilage that allows the diaphysis to grow in length?

Epiphyseal plate


What structure would be present instead of a epiphyseal line?

epiphyseal plate


Where does bone growth occur in children occur?

epiphyseal plates


Which structure allows the diaphysis of the bone to increase in length until early childhood as well as shaping the articular surfaces?

epiphyseal plate


Where does bone growth occur in the long bones?

Growth of length in a long bone occurs at the epiphyseal plate.


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What is epiphyseal plates composed of?

The epiphyseal plate is composed of cartilage. As the child grows, the cartilage hardens into bone. The epiphyseal plate is located at the ends of the long skeletal bones.