Which two organs share the same parasympathetic levels (S2-4 pelvic splanchnic)?

Which two organs share the same parasympathetic levels (S2-4 pelvic splanchnic)?

• A. Bladder and ovaries
• B. Kidneys and adrenal glands
• C. Uterus and prostate
• D. Bladder and uterus

Answer: (C)

Parasympathetic input to pelvic organs comes from the pelvic splanchnic nerves, which originate from S2–S4. These fibers travel through the pelvic plexus to reach target pelvic organs. The uterus and the prostate both receive parasympathetic innervation from these S2–S4 pelvic splanchnic nerves, so they share the same spinal level for parasympathetic supply. Other organs listed are associated with different inputs or higher/lower spinal levels, so they don’t illustrate the same S2–S4 parasympathetic origin as clearly.

Parasympathetic input to pelvic organs comes from the pelvic splanchnic nerves, which originate from S2–S4. These fibers travel through the pelvic plexus to reach target pelvic organs. The uterus and the prostate both receive parasympathetic innervation from these S2–S4 pelvic splanchnic nerves, so they share the same spinal level for parasympathetic supply. Other organs listed are associated with different inputs or higher/lower spinal levels, so they don’t illustrate the same S2–S4 parasympathetic origin as clearly.