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Flashcards in Abdomen Deck (13):
1

Umbilicus - level of intervertebral disc of ______
Subcostal plane - _____ rib; L__
Transtubercular (iliac tubercle) - L__

Umbilicus - level of intervertebral disc of L3-L4
Subcostal plane - 10th rib; L3
Transtubercular - iliac tubercle; L5

2

EXTERNAL OBLIQUE
- free inferior margin = ____________
- obliquely downward and medially

INTERNAL OBLIQUE
- obliquely upward and medially
- aponeurotic fibers of internal oblique and transversus abdominis = ______________
- form aponeurosis which splits to form the _____________

TRANSVERSUS ABDOMINIS

RECTUS ABDOMINIS
- lateral border: ____________

_______________
- not always present
- tenses linea alba

EXTERNAL OBLIQUE
- free inferior margin = inguinal ligament
- obliquely downward and medially

INTERNAL OBLIQUE
- obliquely upward and medially
- aponeurotic fibers of internal oblique and transversus abdominis = conjoint tendon
- form aponeurosis which splits to form the rectus sheath

TRANSVERSUS ABDOMINIS

RECTUS ABDOMINIS
- lateral border: linea semilunaris

PYRAMIDALIS
- not always present
- tenses linea alba

3

At the level below the anterior superior iliac spines, the posterior wall of the rectus sheath is formed by the _____________.

transversalis fascia

4

Crescenteric border on the posterior wall of the rectus sheath, midway between umbilicus and pubic crest

Arcuate line

5

Contents of the Rectus Sheath
- ______________
- ______________
- _____________ vessels
- _____________ vessels
- lower ______ intercostal and subcostal vessels and nerves

Contents of the Rectus Sheath
- rectus abdominis
- pyramidalis
- superior epigastric vessels
- inferior epigastric vessels
- lower five intercostal and subcostal vessels and nerves

6

ARTERIAL SUPPLY / VENOUS DRAINAGE
Superior epigastric - from/to ______________
Inferior epigastric - from/to ______________
Deep circumflex - from/to _____________

NERVE SUPPLY: ventral rami of the lower six thoracic nerves and _____________ nerve

ARTERIAL SUPPLY / VENOUS DRAINAGE
Superior epigastric - from/to internal thoracic
Inferior epigastric - from/to external iliac
Deep circumflex - from/to external iliac

NERVE SUPPLY: ventral rami of the lower six thoracic nerves and first lumbar nerve

7

HESSELBACH'S Inguinal Triangle
Boundaries:

- Inferior epigastric artery
- inguinal (Poupart's) ligament
- rectus abdominis

8

INGUINAL CANAL

Boundaries:
__________ - external oblique aponeurosis
__________ - conjoint tendon, transversalis fascia
__________ - internal oblique, transversus abdominis
Inferior - _____________

Contains the:
________________________ - lateral
________________ (males) - medial
________________ (females) - medial

INGUINAL CANAL

Boundaries:
Anterior - external oblique aponeurosis
Posterior - conjoint tendon, transversalis fascia
Superior - internal oblique, transversus abdominis
Inferior - inguinal ligament

Contains the:
Ilioinguinal nerve (L1) - lateral
Spermatic cord (males) - medial
Round ligament (females) - medial

9

Structures within the Spermatic Cord: (9)

Protection Doesn't Contribute To A Good Sex Life
P: pampiniform plexus
D: ductus deferens
C: cremasteric artery
T: testicular artery
A: artery of the ductus deferens
G: genital branch of the genitofemoral nerve
S: sympathetic nerve fibers
L: lymphatic vessels
Processus vaginalis

10

INGUINAL HERNIAS
____________
- congenital type (patent ______________)
- neck of hernial sac is ________
- protrude through the ________ abdominal wall
- ________ to inferior epigastric vessels
- covered by peritoneum and layers of spermatic cord
- enters the scrotum
- more common

__________
- covered only by _________________

INGUINAL HERNIAS
Indirect
- congenital type (patent processus vaginalis)
- neck of hernial sac is narrow
- protrude through the anterior abdominal wall
- lateral to inferior epigastric vessels
- covered by peritoneum and layers of spermatic cord
- enters the scrotum
- more common

Direct
- covered only by external spermatic fascia

MNEMONIC:
MD W - Medial to inferior epigastric vessels, Direct hernia, wide neck of hernial sac

11

Layers of the ABDOMINAL WALL:
Skin, superficial fascia (Camper's, Scarpa's), deep fascia, muscles, ___________ fascia, extraperitoneal fat, parietal peritoneum

Layers of the ABDOMINAL WALL:
Skin, superficial fascia (Camper's, Scarpa's), deep fascia, muscles, transversalis fascia, extraperitoneal fat, parietal peritoneum

12

DERIVATIVES
Skin - skin
Superficial fascia - _______________
External oblique - ______________ fascia
Internal oblique - ________________
Transversus abdominis - none
Transversalis fascia - ______________ fascia
Extraperitoneal fat - none
Peritoneum - ______________

DERIVATIVES
Skin - skin
Superficial fascia - dartos muscle
External oblique - external spermatic fascia
Internal oblique - cremaster muscle
Transversus abdominis - none
Transversalis fascia - internal spermatic fascia
Extraperitoneal fat - none
Peritoneum - tunica vaginalis

13

CREMASTERIC REFLEX
- utilizes the sensory and motor fibers in the ________ ramus of the ____ spinal nerve
- stroking the skin of the superior and medial thigh stimulates sensory fibers of the _____________ nerve
- motor fibers from the __________ branch of the _____________ nerve cause the cremaster muscle to contract, elevating the testis

CREMASTERIC REFLEX
- utilizes the sensory and motor fibers in the ventral ramus of the L1 spinal nerve
- stroking the skin of the superior and medial thigh stimulates sensory fibers of the ilioinguinal nerve
- motor fibers from the genital branch of the genitofemoral nerve cause the cremaster muscle to contract, elevating the testis