The ovarian plexus contains both sympathetic and parasympathetic nerves. Sympathetic nerves T10 and T11 are afferent for pain as well as efferent or vasomotor. Parasympathetic nerves S2 - S4 are vasodilator

1. Innervation of
female reproductive
system
By-
Suryansh Agrawal
MD-VIII

2. Innervation of
internal genital
organ
Fallopian tube

3. Nerve supply of
ovary
• The ovarian plexus
contains both
sympathetic and
parasympathetic nerves.
• Sympathetic nerves T10
and T11 are afferent for
pain as well as efferent
or vasomotor.
• Parasympathetic nerves
S2 - S4 are vasodilator.

4. Nerve supply of
uterine tubes
• The sympathetic nerve fro
m T10- L2 are derived from
hypogastric plexus.
• Contain both visceral
afferent and efferent fibers.
• Efferent fibers are
vasomotor and perhaps
stimulate tubal peristalsis.

5. Nerve supply of
uterine tubes
• Parasympathetic nerves are
derived from the vagus for
lateral half of the tube .
• Pelvic splanchnic nerves
from S2- S4 segment of
spinal cord for the medial
half.
• Splanchnic nerve inhibit
peristalsis and produce
vasodilation.

6. Nerve supply of
Uterus
• Uterine contraction and
vasoconstriction
are produced
by sympathetic nerves from
T12 and L1 segment of
spinal cord.
• Parasympathetic
nerves from S2 -
S4 produce uterine inhibiti
on and vasodilation.

7. Nerve supply of
Vagina
• The lower one-third of the vagina
is pain sensitive and is supplied
by the pudendal nerve through
the inferior rectal and posterior
labial branches of the perineal
nerve.
• The upper two-thirds of the
vagina are pain insensitive and
are supplied by sympathetic L1, 2
and parasympathetic segments
S2 to S4.
• Nerves are derived from the
inferior hypogastric and
uterovaginal plexuses.

8. Nerve supply of
external genital
organ

9. Cutaneous
innervation
Dorsal nerve of clitoris:
It supplies the skin of
the clitoris .

10. Cutaneous
innervation
• Ilioinguinal nerve and genital branch of
the genitofemoral nerve: These supply
the skin of the anterior one-third of the
labium majus.
• Perineal branch of posterior cutaneous
nerve of thigh: It supplies the skin of the
lateral part of the urogenital region and
the lateral part of the posterior two-thirds
of the labium majus.
• Posterior labial nerves: These supply the
skin of the medial part of the urogenital
region including the labium minus in
females and the medial part of the
posterior two-thirds of the labium majus.

11. Innervation of
Urethra
• Somatic fibres from same
segments (S2–4) reach the striated
muscles through pelvic splanchnic
nerves that do not synapse in
vesical plexus.
• Sensory fibres in pelvic splanchnic
nerves reach to 2nd–4th
sacral segments of spinal cord.
• Postganglionic
sympathetic fibres arise from
plexus around the vaginal arteries.

12. Innervation of
Urethra
• Parasympathetic preganglionic fibres
from 2nd–4th sacral segments of
spinal cord.
• These run through pelvic splanchnic
nerves and synapse in vesical venous
plexus.
• Postganglionic fibres reach smooth
muscles.
• The mucous membrane of urethra is
supplied by the perineal branch of
the pudendal nerve.

13. Bibliography
• BD Chaurasia’s Human Anatomy
• Volume 2 eight edition
• Cpt-28,30& 31
• Page no 409- 445