Abdomen- groin Flashcards
Layers surrounding testis on their descent into scrotum
Layers from out to in:
Skin
External oblique
Internal oblique
Transversalis fascia
Processus vaginalis
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The content of inguinal canal
Male: genital branch of genitofemoral, spermatic cord
Female: round ligament of uterus
Both: ilio-inguinal nerve
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Inguinal canal anterior wall
External oblique aponeurosis
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Inguinal canal posterior wall
Transversalis fascia
Conjoint tendon (medial one third)
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Conjoint tendon
formed from the lower part of the common aponeurosis of the internal oblique muscle and the transversus abdominis
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Roof of inguinal canal
Internal oblique
Transversus abdominis
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Floor of inguinal canal
External oblique aponeurosis
Inguinal ligament
Lacunar ligament
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Boundaries of deep inguinal ring
Superolaterally: tranversalis fascia
Inferomedially- inferior epigastric
Content of spermatic cord
Ductus deferens
Blood vessels: ductus deferens artery, pampiniform plexus, cremesteric vessels
Nerve: genital of genitofemoral, sympathetic
Lymph
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Origin of ductus deferens artery
inferior vesical artery (internal iliac)
Drainage of pampiniform plexus
testicular vein
Origin of cremasteric vessels
Inferior epigastric vessels (from external iliac)
Origin of testicular artery
abdominal aorta
Spermatic cord fascia covering
External spermatic fascia (external oblique)
Cremasteric fascia (internal oblique)
Internal spermatic fascia (transversalis fascia)
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Cremasteric reflex
Afferent: ilio-inguinal at upper medial thigh skin
Efferent: genital of genitofemoral to cremasteric muscle
Which level of spinal cord does the cremasteric reflex check
L1/L2
Indirect inguinal hernia
Peritoneal sac herniates through patent processus vaginalis THROUGH THE DEEP RING
Site of direct inguinal hernia
Through posterior wall of inguinal canal
Hesselbach’s triangle
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Borders of Hesselbach’s triangle
Lateral: ingerior epigastric artery
Medial: rectus abdominis
Inferior: inguinal ligament
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How to differentiate between direct and indirect inguinal hernias
Direct: medial to epigastric artery
Indirect: lateral to epigastric artery
Differentiating between femoral and inguinal hernia
Inguinal: above pubic tubercle
Femoral: below and lateral
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Femoral canal content
Fat
Lymph nodes of cloquet
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Mid point of inguinal ligament
Halfway between ASIS and tubercle
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Which structure associated with mid point of inguinal ligament
Deep inguinal ring
Mid inguinal point
Half way between symphysis and ASIS
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Which structure associated with mid inguinal point
femoral artery
Between which layers of the abdominal wall does the inferior epigastric artery sit
Transversus abdominsis and peritoneum
Surface marking for inguinal canal
Deep inguinal ring 1.5cm above midpoint of inguinal ligament
Superficial ring 1cm above and medial to pubic tubercle
Ischio-rectal fossa boundaries
Superior- levator ani
Lateral- obturator internus
Inferior- Perineal skin
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Deep perineal pouch content
Membranous urethra
Sphincter m
Bulbourethral gland
Deep transverse perineal muscles
Internal pudendal vessels
Dorsal nerve of penis
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