This document summarizes the gross anatomy of several parts of the male reproductive system, including the penis, testes, ductus deferens, and prostate gland. It describes the arterial and venous blood supply, innervation, lymphatic drainage, and ligaments/coverings of each structure. Key details provided include the branches of arteries that supply each part, where veins drain, the source of sympathetic and parasympathetic innervation, and relevant lymph node drainage patterns.

1. Eddy S.R.A/Eddy Saputra
Penis [RS 3: Gross anatomy of the male reproductive system]
Artery Vein Innervation Lymphatic drainage Ligament/Covering
1.Dorsal artery
o Supplies corpus spongiosum
and spongy urethra.
2.Deep (cavernosal) artery
o Supplies corpus cavernosum.
3.Bulbourethral artery
o Supplies bulb, urethra, corpus
spongiosum, and glans.
o All are branches from the
internal pudendal artery,
which travels within the
pudendal canal (Alcock’s canal
1.Deep dorsal vein
o Single and in the median plane.
o Drains into the prostatic
venous plexus.
o Accompanied by dorsal artery,
nerve, and lymph vessel.
2.Superficial dorsal vein
o Single and in the median plane.
o Drains cutaneous plexus (thin
skin) and prepuce.
o No companion artery.
1.Dorsal nerve of the penis
o Branch of pudendal nerve.
o Sensory for glans penis.
2.Cavernous nerve of the penis
o Sympathetic (T11 to L1)
 Responsible for
vasoconstriction,
contraction of seminal
glands and prostate, and
seminal fluid emission.
o Parasympathetic (S1 to S4)
 Responsible for
vasodilatation.
1.Skin
o Drains to the medial group of
superficial inguinal nodes.
2.Glans penis
o Drains to deep inguinal and
external iliac nodes.
3.Erectile tissue and spongy urethra
o Drains to internal iliac nodes.
Ligament
1.Suspensory Ligament
o Condensation of deep
fascia.
o Thick fibroelastic band.
o Fixed to the symphysis
pubis.
2.Fundiform Ligament (Fundi:
bottom)
o Condensation of
abdominal
subcutaneous tissue.
o Runs down from linea
alba.
o Forms a sling for the
penis.
o Attached to the
symphysis pubis.

2. Eddy S.R.A/Eddy Saputra
Testes [RS 3: Gross anatomy of the male reproductive system]
Artery Vein Innervation Lymphatic drainage Ligament/Covering
1.Testicular artery (2/3rd)
o Originates from the
abdominal aorta.
o Descends through the
spermatic cord.
2.Receives collateral blood supply
(1/3rd) from:
o Cremasteric artery – a branch
of the inferior epigastric
artery.
o Artery to ductus deferens - a
branch of the superior or
inferior vesical artery.
1.Pampiniform plexus
o Venous plexus of testes &
epididymis at the posterior
border of the testes.
o Becomes the testicular veins
(presenting valves) at the level
of the deep inguinal ring.
o Thermoregulatory system.
2.Left testicular vein drains into the
left renal vein.
3.Right testicular vein drains into the
inferior vena cava.
1.From the 7th to 11th thoracic
segment OR inferior hypogastric
plexus (able to cross over between
testes).
1. Into lateral aortic & lateral caval
lymph nodes, both left or right.
Covering
2.Innermost tunica vasculosa
o Blood vessels and loose
connective tissue
3.Intermediate tunica
albuginea
o Collagen fibers, extends
as septa of testis
o Mediastinum testes:
incomplete fibrous
septum posteriorly,
neurovascular structures
traverse
4.Outer tunica vaginalis
o Continuation of processus
vaginalis
5.Visceral layer: except
covering posteriorly at
epididymis
6.Parietal layer: adjacent to
spermatic fascia
7.Small amount of clear,
straw-colored fluid in the
cavity allowing free
movement of testes

3. Eddy S.R.A/Eddy Saputra
Ductus Deferens [RS 3: Gross anatomy of the male reproductive system]
Artery Vein Innervation Lymphatic drainage Ligament
1.Artery to vas deferens
2.Rarely internal iliac artery
1.Prostatic venous plexus 1.Inferior hypogastric plexus 1.External and internal iliac lymph
nodes
3 anatomical parts:
1.Scrotal
2.Inguinal
3.Pelvic
Scrotal Portion of Vas Deferens:
1.Ascends along the posterior border of the testis
2.Tortuous 2-3cm
3.Lies on the medial side of the epididymis
4.Posteromedial to the testis
Inguinal Portion of Vas Deferens:
1.Curves around the lateral side of the inferior epigastric artery
2.Ascends for about 2.5 cm in front of the external iliac artery
Pelvic Portion of Vas Deferens:
1.Descends on the medial side of the pelvic side wall
2.Crosses superior to the ureter at the superolateral angle of the bladder
3.Reaches the base of the prostate posteriorly
4.Tortuous and dilated, and ends at the ejaculatory duct

4. Eddy S.R.A/Eddy Saputra
Prostate Gland [RS 3: Gross anatomy of the male reproductive system]
Artery Vein Innervation Lymphatic drainage Ligament
1.Prostatic artery
2.Mainly derived from the internal
iliac artery
3.A branch of the inferior vesical
artery
4.May also arise from internal
pudendal & middle rectal arteries
1. Prostatic venous plexus
o Receives the deep dorsal vein
of the penis & vesical venous
plexus
o Drains into the internal iliac
vein
o Some drains posteriorly
through valveless lumbar vein
into vertebral venous plexus of
Batson
 Spread of prostate cancer
to vertebral column,
thoracic cavity, skull &
brain
1. Inferior hypogastric plexus
2.Sympathetic, parasympathetic &
sensory innervation
3.Smooth muscle of the prostate is
innervated by sympathetic fibers,
which activate during ejaculation
1.Internal iliac, sacral, and obturator
nodes
2.