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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is A
Explanation
The transverse foramen is a hole in each transverse process of the cervical vertebrae that allows the passage of the vertebral artery, vein, and nerve.
It is a distinctive feature of the cervical vertebrae and is not found on any other type.
Choice B is incorrect because lamina is a part of the vertebral arch that connects the transverse process to the spinous process.
It is present on all types of vertebrae.
Choice C is incorrect because pedicle is a part of the vertebral arch that connects the vertebral body to the transverse process.
It is present on all types of vertebrae.
Choice D is incorrect because spinous process is a bony projection on the posterior aspect of the vertebral arch that serves as an attachment site for muscles and ligaments.
It is present on all types of vertebrae.
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