In the nephron, the fluid that immediately precedes urine is known as:
renal filtrate
tubular fluid
plasma
glomerular filtrate
The Correct Answer is B
A. Renal filtrate refers to the fluid filtered from the blood in the glomerulus, which is the initial stage of urine formation. It does not immediately precede urine.
B. Tubular fluid is the filtrate as it passes through the nephron tubules, undergoing various processes like reabsorption and secretion. This fluid eventually becomes urine, after the final adjustments in the collecting duct.
C. Plasma is the liquid component of blood that is filtered by the glomerulus, but it is not the direct precursor to urine.
D. Glomerular filtrate is the fluid filtered out of the blood in the glomerulus and is the precursor to tubular fluid, not directly to urine.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The liver in a newborn (neonate) plays a crucial role in metabolism, detoxification, and the production of vital proteins and enzymes. However, the liver itself does not process food, extract nutrients, or eliminate residue in the context of digestion. These functions are primarily carried out by the digestive system, including the stomach, intestines, and other associated organs. Therefore, this statement is false.
Correct Answer is C
Explanation
A. The neural tube and yolk sac have formed: By 8 weeks, the neural tube and yolk sac have formed, but this is not the criterion for defining a fetus.
B. The amniotic cavity has formed: The formation of the amniotic cavity occurs earlier in development and is not the defining feature of a fetus.
C. All of the organ systems are present: By the end of 8 weeks, the basic structures of all major organ systems are present, which is why the embryo is referred to as a fetus from this point onwards.
D. The mesoderm has formed: The formation of the mesoderm occurs earlier and is not the defining factor for fetal status. By 8 weeks, more significant development, including the presence of organ systems, has occurred.
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