Anatomy 1B

Front 1

Mid-inguinal point

Back 1

a. Superior to point of palpation of femoral artery as
emerges from beneath inguinal ligament
b. Approximate surface marking of the location of
deep inguinal ring – above inguinal ligament

Front 2

Midpoint of inguinal ligament

Back 2

Lies directly lateral to origin of inferior epigastric
vessels

Front 3

Muscle continuations of anterior abdominal wall: Transversalis fascia –

Back 3

deep inguinal ring

Front 4

Inguinal canal (from superficial to deep inguinal ring) – contents

Back 4

A. Spermatic cord (round ligament of the uterus)
B. Ilioinguinal nerve
C. Blood and lymphatic vessels

Front 5

Inguinal canal – boundaries
A. Anterior wall –
B. Posterior wall –
C. Roof –
D. Floor –
E. External opening =
F. Internal opening =

Back 5

A. Anterior wall – skin, superficial fascia, and aponeurosis of external abdominis oblique m.
B. Posterior wall – reflected inguinal ligament, conjoint tendon, transversalis fascia and peritoneum
C. Roof – arched fibers of internal abdominis oblique and transversus abdominis mm.
D. Floor – union of transversalis fascia with inguinal ligament and, at medial end, the lacunar ligament
E. External opening = superficial inguinal ring
F. Internal opening = deep inguinal ring

Front 6

due to arching of internal abdominis oblique and transversus abd mm, posterior wall of
canal is deficient and weak, being formed only by

Back 6

transversalis fascia and peritoneum

Front 7

Inguinal (Hesselbach’s) triangle

Back 7

A. Inferior epigastric vessels
B. Inguinal ligament
C. Lateral border of rectus abdominis m.

Front 8

Canal of Nuck

Back 8

small peritoneal out-pouching in inguinal canal due to persistence of processus vaginalis in
females

Front 9

Spermatic cord - contents

Back 9

A. Ductus deferens
B. Artery of ductus deferens (branch of vesicular a.)
C. Testicular a. (from aorta)
D. Cremasteric a. (branch of inferior epigastric a.)
E. Pampiniform plexus of veins
F. Lymphatic channels to lumbar nodes
G. Genital branch of genitofemoral n. to cremasteric m.

Front 10

Scrotum
A. Innervations

Back 10

1. Genital branch of genitofemoral n. (L1, L2) – supply anterolateral surface
2. Anterior scrotal nerves: ilioinguinal n.(L1) – supply anterior surface
3. Posterior scrotal nerves– perineal of pudendal n. (S2-4) – supply posterior surface
4. Perineal branches of posterior femoral cutaneous n. of thigh (S1-3) – supply posteroinferior surface

Front 11

Varicocele -
Hydrocele –
Hematocele-

Back 11

B. Varicocele – dilated varicose pampiniform plexus of veins
C. Hydrocele – a fluid-filled, persistent processus vaginalis
D. Hematocele – blood in tunica vaginalis

Front 12

Epididymitis
Orchitis

Back 12

– inflammation of epididymis
– inflammation of testis