Which of the following fluids is found around the central nervous system (CNS)?
Cerebrospinal fluid
Synovial fluid
Serous fluid
Plasma
The Correct Answer is A
A. Cerebrospinal fluid: Surrounds and cushions the brain and spinal cord, providing protection, nutrient transport, and waste removal.
B. Synovial fluid: Found in freely movable joints to reduce friction and nourish cartilage, not around the CNS.
C. Serous fluid: Present between layers of serous membranes (e.g., pleura, pericardium, peritoneum), not around the CNS.
D. Plasma: The liquid portion of blood, circulating in vessels, not bathing the CNS directly.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Lipase: Pancreatic and gastric lipases hydrolyze triglycerides into fatty acids and monoglycerides, enabling fat digestion.
B. Trypsin: A pancreatic protease that breaks peptide bonds in proteins, not fats.
C. Pepsin: A stomach enzyme that begins protein digestion by cleaving peptide bonds, not responsible for fat breakdown.
D. Amylase: An enzyme (salivary and pancreatic) that digests starches (carbohydrates), not lipids.
Correct Answer is D
Explanation
A. Connective tissue that connects bone to bone: This describes a ligament, which links bones at a joint, not a tendon.
B. Connective tissue that covers muscles: Muscle coverings are layers like the epimysium or fascia; tendons are not the general covering of muscle.
C. Connective tissue that covers nerves: Nerves are wrapped by sheaths such as the epineurium and perineurium; tendons serve a different function.
D. Connective tissue that connects muscle to bone: Tendons are dense, collagen-rich structures that transmit the force of muscle contraction to bone.
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