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 D
Explanation
A. Distended abdomen is more commonly associated with right-sided heart failure due to liver congestion and ascites.
B. Anorexia can be a nonspecific symptom and is not a primary indicator of left-sided heart failure.
C. Weight gain and edema in both legs are typical signs of right-sided heart failure, caused by systemic venous congestion.
D. Breathlessness (dyspnea) accompanied by crackles and wheezes indicates pulmonary congestion and fluid buildup, which are classic signs of left-sided heart failure where the heart fails to effectively pump blood out to the body, causing fluid to back up into the lungs.
Correct Answer is B
Explanation
A. While the brainstem does influence cardiovascular function, brainstem compression affects multiple critical systems, not just cardiovascular.
B. The medulla oblongata in the brainstem contains the respiratory control centers. Compression can disrupt respiratory drive, leading to respiratory arrest, making this the correct answer.
C. The gastrointestinal system is not primarily affected by brainstem compression.
D. This is false, as brainstem compression severely affects respiratory function due to involvement of respiratory centers.
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