Ant. Abdominal Wall & Inguinal Region Flashcards Preview

GI Midterm > Ant. Abdominal Wall & Inguinal Region > Flashcards

Flashcards in Ant. Abdominal Wall & Inguinal Region Deck (66):
1

Subcostal Plane

10th costal cartilage
superior border of L3

2

Transtubercular Plane

tubercles of the iliac crests
body of L5

3

Transumbilical Plane

L 3-4
similar to supracristal plane

4

Transpyloric Plane

T 12 - L1
half way b/w the jugular notch and the pubic symphysis
goes through the pyloric part of the stomach which is fixed

5

Midclavicular Plane

midpoint of clavicle
midinguinal point

6

Midsagittal (median) Plane

linea alba
passes through umbilicus

7

R.U.Q

gallbladder
duodenum
R pleura
liver (R lobe)
R kidney

8

L.U.Q.

spleen
stomach
L pleura
tail of the pancreas
L kidney

9

R.L.Q.

R ureter
cecum
ilial diverticulum
veriform appendix

10

L.L.Q

L ureter
Descending and sigmoid colon

11

Superficial Inguinal Ring

medial crus
lateral crus
intercrual fibers

12

External abdominal oblique m.

fibers run inferiomedially
aponeuroisis meet to form the linea alba
contributes to the inguinal ligament

13

Lacunar ligament

extension of inguinal ligament, triangular shaped, apex at pubic tubercle, base is concave, lateral and sharp

14

Pectineal ligament

lateral-posterior extension of the lacunar ligament that runs along the pectineal line

15

Internal abdominal oblique m.

fibers run superomedially
cremaster m. is from the internal oblique layer
helps form the conjoint tendon

16

Transverse Abdominis m.

fibers run horizontally
helps form the conjoint tendon
nerves and vessels run b/w internal abdominal oblique and transversus abdominis m.

17

Rectus abdominis m.

fibers run vertically
tendinous intersections perpendicular to fiber which increase strength
enclosed in rectus sheath

18

Pyramidalis m.

attaches to the pubic crest
tenses linea alba

19

Movement Actions of anterior abdominal wall m.

flex trunk anteriorly
laterally flex the trunk
rotate the trunk

20

Other Actions of anterior abdominal wall m.

assist in respiration
important in valsalva maneuver
act during coughing, sneezing, urination, defecation, vomiting, and parturition

21

Campers fascia

most superficial
fatty layer
superficial blood vessels run through
continuous with superficial fatty layers in thorax, thigh, and perineum

22

Scarpa's fascia

deep superficial
membranous layer
continuous with fascia lata and deep perineal fascia

23

Deep fascia

holds structures

24

Rectus Sheath

formed from fascia of
external abdominal oblique
internal abdominal oblique
transversus abdominis
encloses the rectus abdominis and pyramidalis m.

25

Rectus Sheath above arcuate line

anterior - external oblique and anterior portion of internal oblique
posterior - posterior portion of internal oblique and transversus abdominis

26

Rectus Sheath below arcuate line

anterior - external oblique, internal oblique, and transversus abdominis
posterior - none

27

Transversalis fascia

lies on deep surface of ransversus abdominis m. and aponeruosis

28

Linea alba

anterior midline where aponeurotic fibers for the rectus sheath interlace

29

Layers of abdominal wall in order

Skin
Campers fascia
Scarpas fascia
anterior rectus sheath
rectus abdominis m.
posterior rectus sheath
transversalis fascia
extra peritoneal CT and fat
peritoneum

30

superior epigastric a.

origin - internal throacic a.
distribution - upper central anterior abdominal wall
location - enters rectus sheath beneath costal marginal

31

inferior epigastic a.

origin - external iliac a.
distribution - rectus abdominal m. deep abdominal wall of P & U region
location - enters rectus sheath at arcuate line

32

musculophrenic a.

origin - internal thoracic a.
distribution - abdominal wall & diaphragm
location - runs along costal margin

33

10-11 posterior intercostal a.

origin - thoracic aorta
distribution - superior & deep abdominal wall, lateral region
location - enters rectus sheath laterally

34

deep circumflex iliac a.

origin - external iliac a.
distribution - deep inguinal region & lower lateral abdominal wall
location - deep of inguinal ligament toward ASIS

35

superficial circumflex iliac a.

origin - femoral a.
distribution - superior abdominal wall of I region & adjacent anterior thigh
location - iliac region

36

superficial epigastric a.

origin - femoral a.
distribution - superior abdominal wall of P region & inferior U region
location - umbilical region

37

Deep venous drainage

within abdominal wall m. along with arteries
to subclavian v.
to external iliac v.
to lumbar & intercostal v.

38

Superficial venous drainage

within campers fascia
thoracoepigastic v.
lateral thoracic v.
superficial epigastric v.

39

Thoraco-abdominal n.

origin - continuation of lower intercostal n.
distribution - m. of anterolateral abdominal wall and skin
branches - lateral cutaneous branch, anterior cutaneous branch

40

Iliohypogastric n.

origin - superior anterior ramus L1
distribution - inn. anterolateral abdominal mm, suprapubic regions

41

Ilioinguinal n.

origin - inferior anterior ramus L1
distribution - skin of groin & scrotum/labium majus
location - enters inguinal canal

42

Genitofemoral n.

origin - anterior ramus L1-L2
distribution - innervation of cremaster m. or labium majoris, skin of thigh
branches - w/in psoas m. genital & femoral n.

43

Umbilical hernias in infants

scar of umbilicus does not heal completely
heal with time

44

Umbilical hernias in adults

weakend abdominal wall around umbilicus
more common in women
require surgical repair

45

Epigastric hernias

herniations protrude through the linea alba
repaired surgically

46

Incisional hernias

occur at surgical site

47

Spingelian hernias

hernia at semi lunar line of anterior rectus sheath

48

Inguinal Canal

floor - inguinal ligament & lacunar ligament
roof - internal abdominal oblique fibers
anterior wall - external abdominal oblique
posterior wall - transversalis fascia and conjoint tendon

49

Layers of inguinal canal (superficial to deep)

external abdominal oblique m.
internal abdominal oblique m.
transversus abdminis m.

50

Descent of the testes process

develop from mesoderm in upper lumbar/lower throacic region
7th month testes reach inguinal ring and processus vaginalis develops
testes move through inguinal canal
gubernaculum pulls testes into scrotum
tetes move posterior to processus vaginalis and it closes off to make the tunica vaginalis

51

cryptorchidism

undescended testes

52

hydroceles

fluid in tunica vaginalis

53

hematocele

blood in tunica vaginalis

54

Abdominal wall - subcutaneous tissue

scrotum - dartos fascia and m.

55

Abdominal wall - external oblique m and fascia

scrotum - external spermatic fascia

56

Abdominal wall - internal oblique m

scrotum - cremaster m.

57

Abdominal wall - fascia of superficial and deep surfaces of internal oblique m.

scrotum - cremasteric fascia

58

Abdominal wall - transversalis fascia

scrotum - inernal spermaitc fascia

59

Abdominal wall - peritoneum

scrotum - tunica vaginalis and vestige processus vaginalis

60

Descent of the ovaries

descend into pelvis
gubernaculum forms round ligament of ovary and uterus

61

Contents of spermatic fasica

a. of ductus deferens
testicular a.
ductus deferens
pampiniform plexus of veins
lymphatics

62

femoral hernias

exit abdomen through femoral canal inferior to inguinal ligament

63

direct inguinal hernias

the neck of the hernial sac is medial to the inferior epigastic a.

64

indirect inguinal hernias

the neck of the hernial sac lies lateral to the inferior epigastric artery

65

Contents of female inguinal canal

round ligament of uterus
ilioinguinal n.
genital branch of genitofemoral n.

66

Contents of male inguinal canal

ductus deferens
ilioinguinal n.
genital branch of genitofemoral n.
testicular artery
pampiniform plexus of vein