What are the 3 essential components of the skull?
Brain tissue, blood, and CSF
White matter, grey matter, and yellow matter
synovial fluid, CSF, and spinal fluid
WBCs, leukocytes, and plasma
The Correct Answer is A
A. The skull contains and protects three essential components: brain tissue, blood, and cerebrospinal fluid (CSF), which together maintain intracranial pressure and brain function.
B. White matter and grey matter are parts of the brain, but "yellow matter" is not a recognized term.
C. Synovial fluid is found in joints, not in the skull; spinal fluid refers to CSF but listing both is redundant.
D. WBCs, leukocytes, and plasma are components of blood, not components contained within the skull.
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Related Questions
Correct Answer is A
Explanation
A. According to the Monroe-Kellie doctrine, the skull is a closed compartment, and the total volume of brain tissue, blood, and cerebrospinal fluid (CSF) must remain constant. If one component increases, the others must decrease to maintain normal intracranial pressure (ICP).
B. Even small changes in volume can affect ICP and brain function if compensation mechanisms are exceeded.
C. The skull is rigid and does not expand, so any volume increase without compensation leads to increased ICP.
D. The components are interrelated and changes in one directly affect the others due to the closed nature of the intracranial space.
Correct Answer is D
Explanation
A. Numerical Rating Scale is used to assess pain intensity, not consciousness.
B. Wong-Baker FACES is also a pain assessment tool, mainly for children.
C. Visual Analog Scale measures subjective pain levels.
D. Glasgow Coma Scale (GCS) is the standard tool used to assess a patient’s level of consciousness, evaluating eye opening, verbal response, and motor response.
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