Nerve supply of ovary is through

UPUMS Nsg.Officer-2024

Applied Anatomy

Easy

Appeared in: UPUMS Nsg.Officer-2024

Explanation

The primary nerve supply to the ovary is from the ovarian plexus, which contains sympathetic, parasympathetic (disputed origin, possibly vagal), and visceral afferent (sensory) fibers.
This plexus is formed by nerve fibers that branch off from the abdominal aortic plexus and the renal plexus.
These nerves follow the path of the ovarian artery, which originates directly from the abdominal aorta.
This high anatomical origin is a direct result of the ovary's embryological development in the upper posterior abdominal wall before descending into the pelvis.

Option A: This option is incorrect because a valid and accurate description of the ovarian nerve supply is provided among the choices.
Option B: Sacral fibers (from spinal roots S2-S4) form the pelvic splanchnic nerves. These provide parasympathetic innervation to the lower pelvic organs, such as the urinary bladder, uterine cervix, and rectum, not the ovaries.
Option C: The pudendal nerve is a somatic nerve, also arising from S2-S4. It provides motor and sensory innervation to the perineum, including the external genitalia (clitoris, labia) and the external anal and urethral sphincters.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Anatomy of Ovarian Innervation as background academic context rather than a clinical decision trigger.
Understanding ovarian innervation is crucial for diagnosing and managing ovarian pain. Because the sensory nerves travel to the T10-L1 spinal cord segments, pain from the ovary (e.g., from a ruptured cyst, torsion, or ovulation) is often referred to the periumbilical region (T10 dermatome) or flank.
This referred pain pattern can mimic other conditions like appendicitis (if on the right) or renal colic, making a thorough history and understanding of visceral innervation essential for differential diagnosis.
During pelvic surgeries like oophorectomy, knowledge of the neurovascular pedicle (suspensory ligament of the ovary containing the ovarian artery, vein, and plexus) is critical to ensure proper ligation and prevent bleeding and nerve injury.

How to Approach the Question

First, identify the core of the question: the anatomical origin of the nerve supply to the ovary.
Recall the embryological development of the gonads (ovaries and testes). They originate high in the posterior abdominal wall, near the kidneys and abdominal aorta.
Remember the principle that organs 'drag' their neurovascular supply with them as they migrate during development. The ovarian artery branches directly from the abdominal aorta.
Logically deduce that the nerves supplying the ovary must also originate from the plexuses in the upper abdomen, specifically the aortic and renal plexuses, and travel with the artery.
Evaluate the options based on this principle. Eliminate options related to lower pelvic structures (pudendal nerve, sacral fibers), which supply organs that develop within the pelvis. This process isolates the correct choice.

Concept Tested & Keywords

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E6 Gynecology Williams pp. 387-396, 386-396