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Flashcards in posterior body wall Deck (54):
1

kidney

primary retroperitoneal
in paravertebral gutters
inferior pole ore lateral than superior pole, hilum faces anteromedially
right kidney TV12-L3
left kidney TV11-L2

2

posterior to kidney

diaphragm
psoas major
quadratus lumborum
transversus abdominis
subcostal n
iliohypogastric n
ilioinguinal n

3

anterior to right kidney

liver
duodenum
ascending colon

4

anterior to left kidney

stomach
spleen
pancreas
jejunum
descending colon

5

renal fat

pararenal- external to renal fascia
perirenal-internal to fascia

6

renal aa

lateral paired visceral brr of aorta
right longer than left passes posterior to IVC
5 segmental/end aa

7

renal vv

course ant to renal aa
drain directly to ICV
left longer then right, receives gonadal, inferior phrenic, left suprarenal before joining IVC

8

nutcracker syndrome

left renal v passes btwn SMA and aorta -> compressed

9

ureter

retroperitoneal
posterior- psoas major, common iliac vessels
anterior- gonadal and colic vessels

10

ureter constrictions

at renal pelvis/ureteric jnx
over pelvic brim
at entry to bladder

11

arterial supply ureter

upper- renal
middle- gonadal, aorta, common iliac
lower- internal iliac

12

suprarenal gland fnx

endocrine
secretes:
-cortisol
-aldosterone
-androgens
-epi
-NE

13

suprarenal gland features

retroperitoneal
superior pole of kidney, btwn kidney and crura of diaphragm
invested w/in renal fascia, but separated by thin septum
right suprarenal gland is pyramidal-shaped
left suprarenal crescent shaped

14

internal suprarenal features

Cx- production f sterioids
medulla- postganglionic sympathetic neurons (epi/NE)

15

lymph suprarenal

drainage to lumbar nodes

16

thoracoabdominal diaphragm- sternal

small anterior
attached to xiphoid

17

thoracoabdominal diaphragm

large lateral
attached to ribs 7-12

18

lumbar portion

right crus- LV1-LV3
left crus- LV1-LV2

19

median arcuate lig

tendinous arch btwn left and right crura
forms aortic hiatus at TV12

20

medial arcuate lig

tendinous arch from body to transverse process of LV1
arches over psoas major

21

lateral arcuate lig

tendinous arch from transverse process of LV1 to 12th rib
arched over quadratus lumborum

22

lumbocostal triangle

muscular weakness btwn costal and lumbar portion of diaphragm where abdominal viscera can herniate into thorax

23

lymph of diaphragm

superior diaphragmatic nodes -> mediastinal nodes
inferior diaphragmatic vessels -> superior diaphragmatic and or lumbar nodes

24

psoas major

bodies and transverse processes of TV12-LV5 and IV discs
lesser trochanter
flexion of thigh, flexion of vertebral column
ventral rami of L1-3

25

psoas minor

bodies of TV12-LV1 and IV discs
iliopectineal eminence
flex VC
ventral rami of L1

26

iliacus

iliac fossa
lesser trochanter
flex thigh
femoral

27

quadratus lumborum

iliac crest and iliolumbar lig
12th rib, transverse processes of lumbar vertebrae
extends/SB vc, inspiration
ventral rami T12-L4

28

positive psoas sign right

kidneys
ureters
cecum
appendix
ascending colon
sacroiliac joint

29

positive psoas sign left

kidneys
ureters
descending colon
sigmoid colon
pancreas
sacroiliac joint

30

lumbar plexus sensory

anterolateral abdominal wall, inguinal region, ant scrotum/labia majora, gluteal region, perineum, LL

31

lumbar plexus motor

anterolateral abdominal wall, posterior abdominal wall, LL

32

iliohypogastric

L1
forms posterior to medial arcuate lig, arches over quadratus lumborum, pierces transversus abdominis to run btwn it and IAO
near ASIS pierces IAO to run btwn it and EAO
ends by providing suprapubic cutaneous brr

33

ilioinguinal

L1
II to iliohypogastric, but inferior
near ASIS pierces IAO to run btwn it and EAO
enters inguinal canal and provides ant scrotal/labial brr

34

femoral

L2-4
laterla to psoas major, runs across iliacus to pass deep to inguinal lig
LL

35

lateral cutaneous nerve of thigh

L2-3
lateral to psoas major, corses along iliacus towards ASIS, passes under inguinal lig near ASIS to enter thigh
provides sensory to lat thigh

36

genitofemoral

L1-2
pierces psoas major
genital br enters inguinal canal to innervate cremaster
femoral br passes under inguinal lig to provide cutaneous innervation to ant thigh

37

obturator

L2-4
medial to psoas major, runs along lateral pelvic wall, exits pelvis via obturator canal to enter medial thigh
provides sensory and motor innervation to medial thigh

38

lumbosacral trunk

L4-5 descends over pelvic brim to join sacral plexus

39

accessory obturator

L3-4
present in 10% of population

40

course of abdominal aorta

continuation of thoracic aorta at TV12
courses along midline, anterior to LV1-4
ends by dividing into left and right common iliac aa

41

anterior to abdominal aorta

autonomic n plexuses
pancreas
left renal v
duodenum

42

posterior to abdominal aorta

left lumbar vv
cistern chyli and thoracic duct

43

celiac a

T12

44

SMA

L1

45

IMA

L1

46

suprarenal

L1

47

renal

L1

48

gonadal

L2

49

subcostal

T12

50

inferior phrenic

T12

51

lumbar

L1-4

52

course of IVC

forms ant to LV5
ascends right of aorta
thru caval hiatus at TV8

53

anterior to IVC

liver
bile duct
portal v
duodenum
pancreas
right gonadal a
right common iliac a

54

posterior to IVC

right psoas major
right inferior phrenic, right middle suprarenal, right renal , and right aa