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 ["The olecranon fossa"]
Explanation
The olecranon fossa is a depression located on the posterior aspect of the distal end of the humerus bone, just above the trochlea.
It is part of the elbow joint and serves as a resting place for the olecranon process of the ulna bone during elbow extension.
The fossa is bordered by the medial and lateral epicondyles of the humerus and is separated from the trochlea by a thin medial ridge.
The olecranon fossa is an important landmark for orthopedic surgeons as it provides access to the distal humerus for surgical procedures, such as total elbow replacement.
Injury to the olecranon fossa can result in fractures or dislocations of the elbow joint.
Correct Answer is ["Occipital bone"]
Explanation
The occipital bone is a flat, unpaired bone located at the posterior aspect of the skull, forming the lower part of the back of the head.
It features several surface landmarks, including the external occipital protuberance, which serves as an attachment site for muscles and ligaments.
The occipital bone also contains several foramina, including the foramen magnum, which allows the spinal cord to pass through and connect to the brain.
The occipital bone is an important site for the attachment of muscles involved in head movement and posture.
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