ECAD - Inguinal canal & testes {4.02}

What is number 1?

Transversalis fascia

What is number 2?

Conjoint tendon

What is number 3?

Intercrucal fibers

What is number 4?

Superficial inguinal ring

What is number 5?

Medial crus

What is number 6?

Spermatic cord

What is number 7?

Lateral crus

What is number 8?

Testicular A/V and Genitofemoral nerve

What is number 9?

Deep inguinal ring

What is number 10?

Ilioinguinal nerve

What is number 11?

Cremaster muscle and fascia

What is number 12?

Inguinal ligament

What is number 1?

Inferior epigastric artery

What is number 2?

Testicular A/V

What is number 3?

Testicular A/V

What is number 4?

Internal iliac artery

What is number 5?

Cremasteric artery

What is number 6?

External iliac artery

What is number 7?

Ductus deferens

What are the borders of the Inguinal Triangle (of Hesselbach)?

Rectus abdominis, lateral umbilical fold and inguinal ligament

What is number 1?

Lateral femoral cutaneous nerve

What is number 2?

Femoral branches of genitofemoral nerve

What is number 3?

Iliohypogastric nerve

What is number 4?

Ilioinguinal nerve

What is number 5?

Anterior scrotal branch of ilioinguinal nerve

What is number 6?

Genital branch of genitofemoral nerve

What is the spinal origin Iliohypogastric nerve?

L1

What is the motor innervation of Iliohypogastric nerve?

Internal oblique and transversus abdominis muscle

What is the sensory innervation of Iliohypogastric nerve?

Skin over iliac crest, superior inguinal, and hypogastric regions

What is the spinal origin of Ilioinguinal nerve?

L1

What does the Ilioinguinal nerve traverse?

inguinal canal

What is the motor innervation of the Ilioinguinal nerve?

Inferior aspect of internal oblique and transversus abdominis muscle

What is the sensory innervation of the Ilioinguinal nerve?

Skin of lower inguinal region, mons pubis, anterior scrotum/labia majora, upper medial thigh

What is the spinal origin of genitofemoral nerve?

L1-2

What is the motor innervation of the genital branch of the genitofemoral nerve?

cremaster muscle

What is the sensory innervation of the genital branch of the genitofemoral nerve?

inguinal canal, scrotum and labia majora

What is the sensory innervation of the femoral branch of the genitofemoral nerve?

anteromedial thigh

Which branch of the genitofemoral nerve traverses the inguinal canal?

genital branch

How does lymph from the scrotum drain?

superficial inguinal nodes and along the iliac arteries

How does lymph from the testes drain?

Follow testicular vessels through the inguinal canal and into the abdomen

What is number 1?

Superficial inguinal ring

What is number 2?

External spermatic fascia

What is number 3?

Cremaster muscle

What is number 4?

Pampiniform venous plexus

What is number 5?

Ductus deferens

What is number 6?

Genital branch of genitofemoral nerve

What is number 7?

Testicular artery

What is number 8?

Epididymis

What is number 9?

Dartos muscle and fascia

What is number 10?

Testis

What is the action of the cremaster muscle?

Reflexive testicular elevation

What is the action of the dartos muscle?

contraction of scrotal skin; testicular elevation

What innervates the dartos muscle?

autonomics

What is number 1?

Ductus deferens

What is number 2?

Epididymis head

What is number 3?

Epididymis body

What is number 4?

Epididymis tail

What is number 5?

Efferent ductules

What is number 6?

Rete testis

What is number 7?

lobules

What is number 8?

Tunica albuginea

What is number 9?

Ductus deferens

What is number 10?

Epididymal duct

What is number 11?

Seminiferous tubules

What artery do posterior scrotal artery branches originate from?

perineal artery

What artery do anterior scrotal artery branches originate from?

external pudendal artery

What artery does the cremaster artery originate from?

inferior epigastric artery

What is the innervation for the anterolateral surface of the scrotum?

Genital branch of genitofemoral nerve

What is the innervation for the posteroinferior surface of the scrotum?

Perineal branches of posterior cutaneous nerve

What do anterior nerves of the scrotum originate from?

ilioinguinal nerve

What do posterior nerves of the scrotum originate from?

pudendal nerve

What is the gubernaculum?

Fibrous cord from condensed mesenchyme

What is the function of the gubernaculum in development?

Pulls the testis down through the abdomen & pelvis to reach the future scrotum

What is the attachment of the gubernaculum?

gonad to the site of the future inguinal canal

What is the remnant of the gubernaculum?

testicular/scrotal ligament

What is the remnant of skin in the scrotum from development?

Skin

What is the remnant of subcutaneous tissue in the scrotum from development?

Dartos fascia & muscle

What is the remnant of external oblique fascia & aponeurosis in the scrotum from development?

External spermatic fascia

What is the remnant of the internal oblique muscle in the scrotum from development?

Cremaster muscle

What is the remnant of internal oblique fascia in the scrotum from development?

cremasteric fascia

What is the remnant of transversalis fascia in the scrotum from development?

Internal spermatic fascia

What is the remnant of the peritoneum in the scrotum from development?

Tunica vaginalis

What is the presentation of a direct inguinal hernia?

Mass adjacent, but external to the spermatic cord

What is the presentation of an indirect inguinal hernia?

Mass within the spermatic cord and/or scrotum

What is a direct inguinal hernia?

intestine pushed directly through inguinal triangle, through the distal inguinal canal and superficial inguinal ring?

What is an indirect inguinal hernia?

intestine pushed through the deep inguinal ring, inguinal canal, and superficial inguinal ring

What is the typical cause of hydrocele and hematocele?

Patent processus vaginalis

What is varicocele?

Dilated veins in the pampiniform plexus

What is the presentation of varicocele?

Distended scrotum, palpation “bag of worms”

What are some causes of testicular torsion?

Trauma, vigorous physical activity or can be spontaneous

What is testicular torsion?

testis not being properly anchored to the tunica vaginalis inferiorly

What is the cremasteric reflex?

cremasteric contraction with elevation of the testis when stroking upper thigh

What nerve causes the cremasteric reflex?

genitofemoral nerve

What is cryptorchidism?

Empty or hemiscrotum scrotum