How can an X-ray of a child’s femur be used to determine the approximate age of that child?
The Correct Answer is ["epiphyseal analysis"]
The epiphysis is the rounded end of the femur that articulates with the hip bone and knee joint.
As a child grows, the epiphysis gradually fuses with the rest of the bone through a process called ossification.
By examining the degree of fusion of the epiphysis with the femur on an X-ray, doctors can estimate the age of the child.
In general, the younger the child, the less fused the epiphysis will be, and the easier it will be to determine the child's age.
However, it's important to note that this method provides only an approximate age range and cannot be used to determine an exact age.
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Correct Answer is D
Explanation
The scapula is a flat bone that forms part of the shoulder girdle and belongs to the appendicular skeleton.
The appendicular skeleton consists of the bones of the limbs and the girdles that attach them to the axial skeleton.
Choice A is incorrect because sacrum is a triangular bone that forms the posterior part of the pelvic girdle and belongs to the axial skeleton.
The axial skeleton consists of the bones of the head and trunk of a vertebrate.
Choice B is incorrect because hyoid is a U-shaped bone that lies in the anterior neck and belongs to the axial skeleton.
The hyoid bone supports the tongue and provides attachment for some muscles of swallowing and speech.
Choice C is incorrect because ribs are long curved bones that form the rib cage and belong to the axial skeleton.
The ribs protect the thoracic organs and assist in breathing.
Correct Answer is ["epiphyseal analysis"]
Explanation
The epiphysis is the rounded end of the femur that articulates with the hip bone and knee joint.
As a child grows, the epiphysis gradually fuses with the rest of the bone through a process called ossification.
By examining the degree of fusion of the epiphysis with the femur on an X-ray, doctors can estimate the age of the child.
In general, the younger the child, the less fused the epiphysis will be, and the easier it will be to determine the child's age.
However, it's important to note that this method provides only an approximate age range and cannot be used to determine an exact age.
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