Inguinal Region Flashcards Preview

Anatomy Written 3 > Inguinal Region > Flashcards

Flashcards in Inguinal Region Deck (34):
1

Define

Junction btw anterior abdominal wall and thigh - where things enter and exit abdominal cavity
Inherent site of weakness - hernia

2

Inguinal ligament

Inferior, rolled over margin of external abdominal oblique
Runs from ASIS to pubic tubercles

3

Lacunar Ligament

Extension of inguinal ligament
Attach to superior pubic ramus

4

Pectineal Ligament

Lateral part of lacunar ligament

5

Inguinal Canal

Slit like passage from internal abdominal cavity to external inguinal region

6

Deep Inguinal Ring

Entrance
From transversalis fascia
Halfway btw ASIS and pubic tubercle
Lateral to inferior epigastric vessels

7

Superficial Inguinal Ring

Exit
Through external oblique aponeurosis
Above pubic tubercle bounded by lateral and medial crura

8

Hesselbach's Triangle

Site for direct hernias

9

Femoral Ring

Site for femoral hernias

10

Inguinal Canal Boundaries

MALT
Roof = Muscles - IO and TA
Ant wall = Aponeuroses - EO and IO
Floor = Ligaments - Inguinal and lacunar
Post wall = Tendon - conjoint tendon and transversalis fascia

11

Contents in Ingunal Canal - Male

Spermatic Cord

12

Contents in Inguinal Canal - Female

Round Ligament of uterus

13

Contents in Inguinal Canal - Both M and F

Ilioinguinal nerve, genital branch of genitofemoral nerve

14

Layers of Scrotum

Scrotal Skin - from the external skin
Tunica Dartos - smooth muscle and fascia (from scarpas)
External Spermatic Fascia - From EO

15

Layers of Spermatic Cord

From External Spermatic Fascia - from EO
Cremasteric Fascia and Muscle - from IO
Internal spermatic fascia - from transversalis fascia

16

Spermatic Cord Contents

Vas Deferens - what sperm travels up
Deferent and testicular artery
Pampiniform plexus of veins
Lymphatics
Visceral afferents and efferents
Genital branch of genitofemoral nerve

17

Nerves alongisde spermatic cord

Inlioinguinal L1-L2

18

Scrotum COntents

Testis - production of sperm
Epididymis - camp
Vas deferens

19

Testes Coverings

Tunica albuginea - completely encloses it
Tunica Vaginals - parietal and visceral - only partially

20

Cremasteric Reflex

Cremaster muscle is somatic
Stroke upper thigh - will get response from ilioinguinal nerve - testicle will raise from efferent of genital branch of genitofemoral (L1 and 2)

21

Absence of Cremasteric Reflex

L1/L2 injury
Testicular torsion - twisting so can't pull up

22

Gonadal Development - Processus Vaginalis

Early extension of peritoneal cavity into scrotum (labia majorum)

23

Gonadal Development - Gubernaculum

The testes descends via gubernaculum into scrotum and through inguinal canal
Males = stays as testes
Females = Round and ovarian ligament

24

Gonadal Development - Tunica Vaginalis

Remnant of distal poscessus vaginalis in males

25

Indirect Inguinal Hernia

Lateral to inferior epigastric vessels, passes through inguinal canal through deep ring
Stays in spertic cord

26

Direct Inguinal Hernia

Medial to inferior pigastic vessels, passes through triangle

27

Boundaries of Hesselbachs Triangle

Inferior = Inguinal Ligament
Lateral = Inferior epigastric vessels
Medial = lateral border of rectus abdominis

28

Femoral Hernias

Inferior to inguinal ligament, go through femoral ring of anterior abdomen
More common in females

29

Sports Hernias

torn muscle, ligament or tendon in lower abdominal/inguinal region - not a true herniation

30

Incarcerated

Irreducible - cannot be manually reduced

31

Strangulated

Blood supply is cut off

32

Direct Inguinal

Often reducible
Acquired
Medial to inf epigastric a
Hesselbachs triangle

33

Indirect Inguinal

Irreducible
Congenital - typically see with men at birth
Lateral to inf epigastric
Deep ring

34

Femoral

Often reducible
Acquired
Inferior to inguinal lig
Femoral ring