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S&F IV: Exam One > Inguinal Region > Flashcards

Inguinal Region Flashcards

0
Q

Lacunar Ligament

A

Medial extension of the inguinal ligament which attaches to the pectineal line; its sharp edge form the femoral ring

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1
Q

Inguinal Ligament

A

Lower border of the E.O. aponeurosis; extends from the ASIS to the pubic tubercle

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2
Q

Pectineal Ligament

A

Thickening of the periosteum that is continuous w/ the lacunar ligament at the pectineal line of the pubis

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3
Q

Conjoint tendon

A

Fused aponeuroses of I.O. and transversus abdominis mucles

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4
Q

Hesselbach’s Triangle

A

Weakness in the abdominal wall vulnerable to a direct inguinal hernia; found in the medial inguinal fossa

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5
Q

Deep Inguinal Ring

A

Found lateral to the inferior epigastric vessels in the lateral inguinal fossa; spermatic cord protrudes thru the transverasalis fascia

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6
Q

Superficial Inguinal Ring

A

Formed by the medial and lateral crus (attached to the pubic symphysis and tubercle) and the pubic crest; technically an evagination of the E.O. aponeurosis

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7
Q

Anterior Wall of the Inguinal Canal

A

E.O. aponeurosis and I.O. aponeurosis (lateral 1/3)

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8
Q

Posterior Wall of the Inguinal Canal

A

Transversalis fascia and conjoint tendon (medial 1/3)

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9
Q

Roof of Inguinal Canal

A

I.O. muscle and aponeurosis and transversus abdominis aponeurosis

Also arching muscle fibers

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10
Q

Floor of Inguinal Canal

A

Ingiuinal and lacunar (medial 1/3) ligament

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11
Q

Structures transmitted thru the inguinal canal

A

Male=Spermatic Cord

Female= Round ligament of the uterus

Both= llioinguinal nerve and gential branch of the genitofemoral nerve

*llioinguinal nerve pierces canal laterally at the transversus abdominis and exits thru the superficial ring

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12
Q

Processus vaginalis

A

Evagination of peritoneum into the ventral abdominal wall that is independent of testes descent; after obliteration, persists as the tunica vaginalis on the testes

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13
Q

Gubernaculum

A

Condense band of mesenchyme that connects the developing gonad to the labioscrotal swellings; becomes the fibrous cord connecting the testest to the scrotum or the round ligament of the uterus

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14
Q

Testes descent

A

Gonads develop at L1 and descend thru the inguinal canal picking up layers of fascia as they travel the the processus vaginalis via the gubernaculum

*Cavity of the tunica vaginalis originates from the peritoneum

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15
Q

Camper’s Fascia in scrotum

A

Dartos muscle

16
Q

Scarpa’s Fascia in scrotum

A

Colle’s Fascia

-membranous layer of superficial fascia

17
Q

E.O. aponeurosis in scrotum

A

External Spermatic Fascia

18
Q

I.O. muscle and aponeurosis in scrotum

A

Cremaster muscle and fascia

19
Q

Transversus abdominis muscle in scrotum

A

NO CONTRIBUTION

20
Q

Transversalis fascia in scrotum

A

Internal spermatic fascia

21
Q

Extraperitoneal fat in scrotum

A

Loose CT

22
Q

Parietal Peritoneum in scrotum

A

Tunica vaginalis (obliterated processus vaginalis)

23
Q

Dartos muscle

A

Contracts in response to cold and reduces the surface area of the scrotum

*Stabilizes testis temperature

24
Q

Tunica albuginea

A

Outer capsule surrounding the testis

25
Q

Site of sperm production

A

Seminiferous tubules

26
Q

Spermatic Cord Layers and Components

A

Layers: External spermatic fascia
Cremasteric fascia
Internal spermatic fascia

Components: Testicular artery
Ductus deferens and artery
Pampiniform plexus (converges as testicular vein)
Genital branch of genitofemoral nerve
Cremasteric artery
Autonomic nerve plexus

27
Q

Indirect Inguinal Hernia

A
  • Neck of hernia passes thru deep inguinal ring in lateral inguinal fossa
  • Enters lateral to inferior epigastric vessels
  • Cause is from incomplete obliteration of the processus vaginalis
  • covering consists of peritoneum
  • More common hernia
28
Q

Direct Inguinal Hernia

A
  • Neck of hernia passes directly thru inguinal fossa in Hesselbach’s triangle
  • Enters medial to inferior epigastric vessels
  • Never extends to scrotum
  • Caused by weak posterior wall of inguinal canal
29
Q

Femoral Hernia

A

Occurs thru the femoral ring and lies inferolaterally to the pubic tubercle

  • Dangerous to repair due to possible presence of corona mortis and constriction by tough ligaments
  • Common in women
30
Q

Cryptochordism

A

Incomplete testes descent such that one of both testes remain in the body cavity or inguinal canal

31
Q

Cremasteric Reflex

A

Reflex contraction of the cremaster muscle due to stroking of the medial thigh

Ilioinguinal N.-sensory to inner thigh
Genital Branch of genitofemoral N.- Motor to cremaster

32
Q

Peritoneal recess infection

A

Occurs more commonly in women due to communication of Fallopian tubes and peritoneal cavity

S&F IV: Exam One (20 decks)

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