Which group of cells in the kidneys makes up the apparatus that helps control renin secretion?
1. The red blood cells and slit pores
2. The nephron and Bowman's capsule
3. The juxtaglomerular (JG) cells and the macula densa
4. The tubular and the glomerulus
Correct Answer: 3
Rationale 1: The red blood cells and the slit pores do not help control renin secretion in the kidneys.
Rationale 2: The nephron and Bowman's capsule do not help control renin secretion.
Rationale 3: The JG cells and the macula densa are the cells that help control renin secretion.
Rationale 4: The tubular and glomerulus of the kidneys do not help control renin secretion.
Global Rationale: The JG cells and the macula densa are the cells that help control renin secretion. The red blood cells and the slit pores do not help control renin secretion in the kidneys. The nephron and Bowman's capsule do not help control renin secretion. The tubular and glomerulus of the kidneys do not help control renin secretion.
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