inguinal canal

Examples of inguinal canal in the following topics:

• Inguinal Hernia

  • An inguinal hernia is a protrusion of abdominal-cavity contents through the inguinal canal.
  • An inguinal hernia is a protrusion of abdominal-cavity contents through the inguinal canal .
  • Direct inguinal hernias occur medial to the inferior epigastric vessels when abdominal contents herniate through a weak spot in the fascia of the posterior wall of the inguinal canal, which is formed by the transversalis fascia.
  • As a result, the possibility for hernias through the inguinal canal in males is much greater because they have a larger opening and therefore a much weaker wall for the intestines to protrude through.
  • The larger size of their inguinal canal, which transmitted the testicle and accommodates the structures of the spermatic cord, might be one reason why men are 25 times more likely to have an inguinal hernia than women.

• Cryptorchidism

  • In 90% of cases an undescended testis can be palpated in the inguinal canal; in the minority, the testis or testes are in the abdomen or nonexistent (truly "hidden").
  • Undescended testes are also more susceptible to testicular torsion and infarction, and inguinal hernias.
  • When the undescended testis is in the inguinal canal, hormonal therapy is sometimes attempted and occasionally successful.
  • Although many trials have been published, the reported success rates range widely, from roughly 5 to 50%, probably reflecting the varying criteria for distinguishing retractile testes from low inguinal testes.

• Pubis

  • This tubercle, found roughly 3 cm from the pubic symphysis, is a distinctive feature on the lower part of the abdominal wall and is useful when attempting to localize the superficial inguinal ring and the femoral canal of the inguinal canal.

• Pulled Groin

  • In human anatomy, the groin (the adjective is inguinal, as in inguinal canal) areas are the two creases at the junction of the torso with the legs, on either side of the pubic area.

• Testes Ducts

  • The ductus (vas) deferens, also called the sperm duct, extend from the epididymis on each side of the scrotum into the abdominal cavity through the inguinal canal, an opening in the abdominal wall for the spermatic cord.

• Lumbar Plexus

  • The largest nerve of the plexus is the femoral nerve and it supplies the anterior muscles of the thigh and a part of skin distal to the inguinal ligament.
  • Its terminal branch then runs parallel to the inguinal ligament to exit the aponeurosis of the abdominal external oblique above the external inguinal ring, where it supplies the skin above the inguinal ligament (i.e., the hypogastric region) with the anterior cutaneous branch.
  • It pierces the lateral abdominal wall and runs medially at the level of the inguinal ligament where it supplies motor branches to both the transversus abdominis and sensory branches through the external inguinal ring to the skin over the pubic symphysis and the lateral aspect of the labia majora in females, and in males, the scrotum.
  • In females, it runs in the inguinal canal together with the teres uteri ligament.
  • Obturator nerve: Leaves the lumbar plexus and descends behind the psoas major on its medial side, follows the linea terminalis into the lesser pelvis, then finally leaves the pelvic area through the obturator canal.

• Female Reproductive Anatomy

  • The female reproductive structures produce eggs, support a growing embryo, and provide a birth canal to the fetus.
  • The vulva is an area associated with the vestibule that includes the structures found in the inguinal (groin) area of women.
  • Part of the uterus, called the cervix, protrudes into the top of the vagina, which functions as the birth canal.

• Canals

• Transportation: Roads, Canals, and Railroads

  • In 1808, a government-sponsored Report on the Subject of Public Roads and Canals suggested that the federal government should fund the construction of interstate turnpikes and canals.
  • Among the most important of these canals was the Erie Canal.
  • The success of the Erie Canal led to a proliferation of smaller canal routes in the region.
  • Most of the canal work was done by Irish immigrants who had previously worked on the Erie Canal.
  • The Illinois and Michigan Canal was an important canal in the nineteenth century, but was rendered obsolete when new railroads replaced it.

• Supply of Blood and Nerves to Bone

  • Blood is supplied to mature compact bone through the Haversian canal.
  • Haversian canals are formed when individual lamellae form concentric rings around larger longitudinal canals (approx. 50 µm in diameter) within the bone tissue.
  • A Haversian canal generally contains one or two capillaries and nerve fibers.
  • Volkmann's canals are channels that assist with blood and nerve supply from the periosteum to the Haversian canal.
  • The Haversian canals surround blood vessels and nerve cells throughout the bone.