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
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.
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.
Epiphyseal - Located on each side of the long bone.
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.
Epiphyseal plate
epiphyseal plate
epiphyseal plates
epiphyseal plate
Growth of length in a long bone occurs at the epiphyseal plate.
yes but closes early
yes but it closes early
Yes, but it closes early on Sundays.
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.