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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["condylar process of the mandible"]
Explanation
The mandible condylar process is a bony projection located at the posterior aspect of the mandible, which is the lower jawbone.
It is a rounded, knob-like structure that articulates with the temporal bone of the skull, forming the temporomandibular joint (TMJ).
The condylar process allows for movements of the mandible, including opening and closing the mouth and chewing food.
The shape and position of the condylar process can affect the function of the TMJ and can contribute to conditions such as TMJ disorders.
Correct Answer is B
Explanation
The ethmoid bone is a part of the axial skeleton, not the appendicular skeleton.
The axial skeleton consists of the bones of the skull, vertebral column, ribs, and sternum.
Choice A is incorrect because the ulna is a part of the upper limb, which is supported by the pectoral girdle.
Choice C is incorrect because the ilium is a part of the hip bone, which forms the pelvic girdle.
Choice D is incorrect because the patella is a part of the lower limb, which is supported by the pelvic girdle.
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