Which term describes the fibrous connective tissues that cover the brain and spinal cord?

Choice A rationale

Cerebrospinal fluid (CSF) does not produce cerebral neurotransmitters. Neurotransmitters are produced by neurons in the brain and nervous system.

Choice B rationale

CSF provides a protective barrier to some extent, but its primary function is not to act as a barrier to bacteria. The blood-brain barrier primarily serves this function.

Choice C rationale

CSF helps maintain a stable environment in the central nervous system but is not primarily an insulator for maintaining constant temperature. Its thermal properties are secondary.

Choice D rationale

The primary function of CSF is to cushion and protect the brain and spinal cord from mechanical injury. It also helps maintain the brain's buoyancy and provides a stable environment for the central nervous system.

Choice A rationale

Scoliosis refers to a lateral curvature of the spine, not an exaggeration of the lumbar spine curve, which is characterized by lordosis.

Choice B rationale

Lordosis is an exaggerated inward curve of the lumbar spine, often referred to as swayback. This condition is identified by the nurse as the client presents with an exaggerated lumbar curve.

Choice C rationale

Kyphosis describes an excessive outward curvature of the thoracic spine, resulting in a hunched back, not the lumbar spine.

Choice D rationale

Dowager's hump is a term commonly associated with kyphosis, characterized by a pronounced curvature of the upper back, not the lumbar region.