Which term describes the fibrous connective tissues that cover the brain and spinal cord?
Dura mater.
Meninges.
Pia mater.
Arachnoid mater.
The Correct Answer is B
Choice A rationale
The dura mater is the outermost, tough, and fibrous layer of the meninges that provides protection to the brain and spinal cord.
Choice B rationale
Meninges collectively refer to the three layers of protective membranes (dura mater, arachnoid mater, and pia mater) that cover the brain and spinal cord.
Choice C rationale
The pia mater is the delicate innermost layer of the meninges that closely envelopes the brain and spinal cord, providing support and nourishment.
Choice D rationale
The arachnoid mater is the middle layer of the meninges that has a web-like appearance and provides cushioning for the brain and spinal cord.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Lordosis is an exaggerated inward curvature of the lumbar spine. It is commonly seen in pregnant women, individuals with obesity, or those with weak abdominal muscles. Lordosis is not characterized by an increased thoracic curvature.
Choice B rationale
Kyphosis is an exaggerated outward curvature of the thoracic spine, often resulting in a hunched or rounded back. It is commonly seen in older adults due to osteoporosis, degenerative disc disease, or poor posture. Kyphosis is the correct diagnosis for increased thoracic curvature.
Choice C rationale
Scoliosis is a lateral curvature of the spine, often resembling an "S" or "C" shape when viewed from behind. It can occur in any part of the spine but does not specifically describe an increased thoracic curvature.
Choice D rationale
Epiphyses refer to the growth plates at the ends of long bones in children and adolescents. They are not related to spinal curvature or any spinal disorder. .
Correct Answer is D
Explanation
Choice A rationale
Ligaments connect bones and stabilize joints. Age-related changes in ligaments result in decreased elasticity, leading to joint stiffness but not directly causing loss of height.
Choice B rationale
Bones undergo resorption and may lose density with age, leading to osteoporosis. While this contributes to height loss, it is not typically associated with diminished range of motion or flexibility as primary symptoms.
Choice C rationale
Muscles lose mass and strength with aging, a condition known as sarcopenia. This affects flexibility and range of motion but does not lead directly to height loss.
Choice D rationale
Joints are affected by age-related changes such as cartilage wear and synovial fluid reduction, leading to stiffness, loss of flexibility, diminished range of motion, and height loss due to spinal disc compression and vertebral changes.
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