Posterior Abdomen Flashcards Preview

S&F IV: Exam One > Posterior Abdomen > Flashcards

Flashcards in Posterior Abdomen Deck (32):
1

Psoas Major

O-Lumbar vertebrae; intervertebral discs

I- Lesser trochanter of femur

A- Flexes thigh and trunk

N- L2-L4 via Lumbar Plexus

2

Psoas Minor

O- T12-L1; intervertebral discs

I- Iliopubic eminence

A- Weak flexor of trunk

N-L1

3

Iliacus

O-Iliac fossa

I- Lesser trochanter (via Illiopsoas tendon)

A- Flexes thigh and trunk

N- L2-L4 (femoral nerve)

4

Median arcuate ligament

Unites the Right and left cura; connects the cura anterior to the aorta

5

Medial arcuate ligament

Superior thickening of the psoas fascia

6

Lateral Arcuate Ligament

Superior thickening of the quadratus lumborum fascia

7

Paranephric fat

Large amount of fat found only posterior to the kidney

8

Blood supply to Adrenal Glands

Superior Suprarenal Artery- from inferior phrenic

Middle Suprarenal Artery- from Aorta

Inferior Suprarenal Artery- from Renal

9

Left Renal Vein

Receives drainage from the left testicular/ovarian and left superior suprarenal veins

10

Subcostal Nerve

Level = T12

Distribution= Skin and muscles of anterolateral abdominal wall

Course= Passes beneath lateral arcuate ligament and courses laterally

11

Iliohypogastric Nerve

L= L1

D= Skin of upper inguinal and suprapubic region; internal oblique and transversus abdominus muscles

C=Course inferolaterally anterior to quadratus lumborum

12

Ilioinguinal Nerve

L= L1

D= Skin of lower inguinal region, groin, and medial thigh; internal oblique and transversus abdominus muscles

Course inferolaterally anterior to quadratus lumborum

13

Damaged on lumbar approach to kindey

Subcostal, ilioinguinal, and iliohypogastric nerves

14

Genitofemoral Nerve

L= L1, L2

D= Genital branch; motor to cremaster
Femoral branch; skin of medial thigh

*Pierces the psoas, courses inferiorly on the ANTERIOR PSOAS, abd separates

15

Lateral Femoral Cutaneous Nerve

L= L2, L3

D= Skin of lateral and anterior thigh

*Courses inferolaterally on illacus muscle

16

Femoral Nerve

L= L2-L4

D= Anterior thigh muscles

*Descends b/w ilacus and psoas

17

Obturator Nerve

L= L2-L4

D= Medial thigh muscles

*Courses on medial border of psoas

18

Lumbosacral Trunk

L= L4-L5

D= Joins sacral plexus

19

Illiopsoas Test

Patient flexes thigh against resistance

Pain? => Inflammation involving the psoas
-Could be appendicitis

20

Three Sites of Ureter Constriction

1. Uretopelvic Jnxn

2. Pelvic Inlet (b/w external and internal illiac arteries)

3. Entrance to bladder

*Potential sites for lodging of kidney stone

21

Horseshoe Kidney

Fusion of the lower poles of the two kidneys; blocks urine flow

22

Rosette Kidney

Fusion of kidneys at their hila; remain in pelvis

23

Bifid Ureter

Ureters join in the lower 1/3 of their course; Increase potential for infxn or calculus

24

Quadratus Lumborum

O- Iliolumbar ligament; posterior iliac crest

I- Transverse processes of upper four L-vertebrae

A- Bends trunk laterally; fixes 12th rib during inspiration

N-T12-L4

25

Origin of Central Tendon of Diaphragm

Septum transversum

26

IVC foramen

T8

Contains IVC and right phrenic nerve

27

Esophageal Hiatus

T10

Contains the esophagus, vagal trunks, esophageal branches of left gastric artery

28

Aortic Hiatus

T12

Contains the aorta, thoracic duct, and azygous vein

29

Greater Splanchnic Nerve

Enters the celiac ganglion; will be large

30

Fundiform ligament of the penis

Formed by Scarpa's fascia

31

Connected by the median umbilical fold

Anterior abdominal wall and the bladder

32

Peritoneal Fossa

Depressions found lateral to the lateral umbilical folds