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30 Cards in this Set

  • Front
  • Back
external obliue
most superficial and lgst of flas muscles; run in "hands in pocket" direction; anterior 1/2 has strong flat tendon called external oblique aponeurosis that thickens externally to form inguinal ligament
internal oblique
lies immediately deep to the external oblique muscle; fibers run "hands in back pocket"; aponeurosis runs above and parallel to the inguinal ligament and fuses with the transversus abdominus aponeurosis to form conjoined tendon
aponeurosis of internal oblique
aponeurosis that splits into two layers to contribute to both the anterior and posterior sheaths
transversus abdominus
most muscle fibers run horizontally with an aponeurosis at linea alba; the deep fascia of this muscle is called transversalis fascia
inguinal canal
entrance: deep(internal) inguinal ring; exit: superficial (external) inguinal ring
round ligament of uterus
fibromuscular band that passes from the uterus to the deep inguinal ring, through the inguinal canal to merge with connective tissue of labium majora
ilioguinal nerve
L1 - travels through inguinal canal to supply skin of the scrotum
spermatic cord
connects scrotal contents with abdomen
int. spermatic fascia
within the spermatic cord; from the transversalis fascia
cremasteric fascia
part of spermatic cord; from fascia of internal oblique; contains fibers of the internal oblique that descend through the spermatic cord as cremaster muscle
cremaster muscle
continuation of internal oblique w/n the spermatic cord; raises and lowers the testes in response to temperature changes
external spermatic fascia
from fascia of external oblique;
ductus deferens
highly muscular tube that enters inguinal canal through the superficial inguinal ring and exits through the deep inguinal ring where it turns medially to travel to prostate gland; conveys sperm and secretions from epididymis to ejaculatory ducts
testicular artery
branch of abdominal aorta, which descends along the posterior abdominal wall to enter the deep inguinal ring and exit the superficial inguinal ring to provide blood supply to testes
artery of ductus deferens
arises from internal iliac artery to supply ductus deferens and epididymis
cremaster artery
arises from inferior epigastric artery to supply cremaster muscle
pampiniform plexus
network of 10-12 anastomosing veins ascending around testicular artery to drain the testes; travels through the inguinal canal and terminates into the 2 testicular veins
genital branch of genitofemoral nerve
nerve that innvervates cremaster muscle; responsible for cremaster reflex
testicular plexus
sympathetic autonomic nervous plexus that carries vasomotor and pain and pressure fibers
hesselbachs triangle
triangle formed by the inguinal ligament, lateral edge of rectus abdominus muscle, and inferior epigastric vessels
gubernaculum testis
ligament that "governs" the descent of the testes down the posterior abdominal wall, through the inguinal canal, and into the scrotal sac by becoming successively shorter
Scrotal Sac
develops as an outpouching of the abdominal skin that serves to house the testes once they have descended from the abdomen
Scrotal Sac
composed of an outer layer of heavily pigmented skin and inner layer that contains the dartos muscle
dartos muscle
a smooth muscle that attaches to the skin of the scrotum; it contracts in response to cold temperature and wrinkles the skin of the scrotum to decrease heat loss
tunica vaginalis
outer covering of tests
tunica albuginea
inner fibrous coat of the testes
located on posterior surface of the testis and serves to store sperm produced by the tests
oval shaped organs susupended in the scrotum by the spermatic cord
body of epidiymis
the efferent ductules unite to form the duct of the epididymis; convolutions of this duct form the body and the distal tail of the epididymis that is continuous with vas deferens
head of epididymis
expanded, superior portion this is formed by efferent ductules of the epididymis