Flashcards in Spermatic cord Deck (23)
what does the spermatic cord refer to?
a collection of vessels, nerves and ducts that run to and from the testes
what is the spermatic cord surrounded by?
surrounded by fascia, forming a cord-like structure
what is the anatomical course of the spermatic cord
relatively short, beginning in the inferior abdomen and ending in the scrotum
where is the spermatic cord formed at?
formed at the opening of the inguinal canal, known as the deep inguinal ring
where is the opening of the inguinal canal?
This opening is located laterally to the inferior epigastric vessels
where does the spermatic cord pass through?
the inguinal canal, entering the scrotum via the superficial inguinal ring
after entering the superficial inguinal ring , where does the spermatic continue? ending?
It continues into the scrotum, ending at the posterior border of the testes
what happens after the spermatic cord ends at the posterior border of the testes?
its contents disperse to supply the various structures of the testes and scrotum
what are the contents of the spermatic cord mainly bound together by?
by three fascial layers - they are all derived from anterior abdominal wall
what are the 3 fascial layers bounding the contents of the spermatic cord?
external spermatic fascia
cremaster muscle and fascia
internal spermatic fascia
where is external spermatic fascia derived from?
derived from the aponeurosis of the external oblique
where is cremaster muscle and fascia derived from?
derived from the internal oblique and its fascial coverings
where is internal spermatic fascia derived from?
derived from the transversalis fascia
what are the 3 fascial layers covering the contents of the spermatic cord covered by? where is it?
a layer of superficial fascia, which lies directly below the scrotal skin
what does the cremaster muscle form?
the middle layer of the spermatic cord fasciaa
what is the cremaster muscle a layer of?
a discontinuous layer of striated muscle, that is orientated longitudinally
Clinical: how can the cremaster reflex be stimulated?
by stroking the superior and medial part of the thigh
clinical: what happens when the cremaster reflex is stimulated?
produces an immediate contraction of the cremaster muscle
clinical: what does contraction of the cremaster muscle lead to?
elevates the testis on the side that has been stimulated
clinical: what type of reflex is the cremaster reflex?
clinical: what does the cremaster spinal reflex consist of?
afferent sensory limb (stroking)
(brainstem / spine coordinate in between)
efferent motor limb (the reflex)
clinical: which nerve coordinates the afferent sensory limb within the cremaster reflex?
ilioinguinal / genitofemoral nerve