Kax - Anatomy Final - Abdominal Wall

Front 1

What makes up the nerve supply to the abdominal wall?

Back 1

dorsal and ventral branches of thoracic and lumbar spinal nerves

Front 3

What makes up the nerve supply to the abdominal wall?

Back 3

dorsal and ventral branches of thoracic and lumbar spinal nerves

Front 4

Name for L1 - the ventral branch of caudal lumbar spinal nerve

Back 4

cranial iliohypogastric nerve

Front 5

Name for T13 - the ventral branch of caudal thoracic spinal nerve

Back 5

costoabdominal nerve

Front 6

Name for L2 - the ventral branch of caudal lumbar spinal nerve

Back 6

caudal iliohypogastric

Front 7

Name for L1 - the ventral branch of caudal lumbar spinal nerve

Back 7

cranial iliohypogastric nerve

Front 8

Name for L3 - the ventral branch of caudal lumbar spinal nerve

Back 8

ilioinguinal

Front 9

Name for L2 - the ventral branch of caudal lumbar spinal nerve

Back 9

caudal iliohypogastric

Front 10

Name for L3 - the ventral branch of caudal lumbar spinal nerve

Back 10

ilioinguinal

Front 11

Name for L4 - the ventral branch of caudal lumbar spinal nerve

Back 11

lateral cutaneous femoral nerve

Front 12

What artery courses with the lateral cutaneous femoral nerve?

Back 12

deep circumflex iliac artery

Front 13

what nerve courses with the deep circumflex iliac artery?

Back 13

lateral cutaneous femoral nerve

Front 14

what artery courses with the cranial iliohypogastric nerve?

Back 14

cranial abdominal artery

Front 15

where on the dog body is the cutaneous innervation from the lateral cutaneuos femoral nerve?

Back 15

lateral and cranial surfaces of the thigh and lateral surfaces of the hip and stifle

Front 16

name the 4 major muscles of the abdominal wall from most lateral to most medial

Back 16

external abdominal oblique
internal abdominal oblique
transversus abdominis
rectus abdominis

Front 17

Origin, insertion, innervation and action of external abdominal oblique

Back 17

O: Lateral surfaces of ribs 4-12 and the thoracolumbar fascia
I: Wide aponeurosis on the linea alba and on the pecten ossis pubis
Innervation: last 8 or 9 intercostal nn., ventral brs. of T13, L1, L2, L3 spinal nerves
Action: Compression of the abdominal viscera (abdominal press) – aids in expiration, urination, defecation, parturition; flexion of vertebral column when right and left muscles contract; unilateral - lateral bending of the vertebral column

Front 18

Origin, insertion, innervation and action of internal abdominal oblique

Back 18

O: Tuber coxae, thoracolumbar fascia and inguinal ligament
I: Costal arch, rectus abdominis, linea alba and prepubic tendon (CT structure that connects to the pecten ossis pubis) by a wide aponeurosis
Innervation: Medial brs. of last few intercostal nn., ventral brs. of T13, L1, L2, L3 spinal nerves
Action: Compression and
support of the abdominal viscera

Front 19

Origin, insertion, innervation and action of transversus abdominis muscle

Back 19

O: Medial surfaces of the last 4-5 ribs and from the transverse processes of the lumbar vertebrae via thoracolumbar fascia
I: Linea alba
Innervation: Medial brs. of last few intercostal nn., ventral brs. of T13, L1, L2, L3 spinal nerves
Action: Compression and
support of the abdominal
viscera

Front 20

Origin, insertion, innervation and action of rectus abdominis muscle

Back 20

O: first costal cartilage and sternum
I: pecten ossis pubis (by way of prepubic tendon)
Innervation: Medial brs. of intercostal nn., ventral brs. of T13, L1, L2, L3 spinal nerves
Action: Compression and support of the abdominal viscera; bring the pelvis forward, flexion of the back

Front 21

the rectus sheath is formed by aponeuroses of what muscles?

Back 21

External abdominal oblique m.
Internal abdominal oblique m.
Transversus abdominis m.

Front 22

the layers of the rectus sheath vary depending on what general abdominal location?

Back 22

Cranial to umbilicus
Caudal to umbilicus
Cranial to pubis

Front 23

what are the layers of the rectus sheath cranial to the umbilicus?

Back 23

Ext abdominal oblique
Int abdominal oblique
Rectus abdominis
Int abdominal oblique
Transversus abdominis

Front 24

what are the layers of the rectus sheath caudal to the umbilicus?

Back 24

Ext abdominal oblique
Int abdominal oblique
Rectus abdominis
Transversus abdominis

Front 25

what are the layers of the rectus sheath cranial to the pubis?

Back 25

Ext abdominal oblique
Int abdominal oblique
Transversus abdominis
Rectus abdominis

Front 26

What are the four main arteries that provide blood supply to the abdominal wall?

Back 26

Cranial (deep) epigastric a.
caudal (deep epigastric a.
cranial abdominal a.
deep circumflex iliac a.

Front 27

Trace a blood cell moving from the abdominal aorta to the caudal deep epigastric artery and on down to the caudal superficial epigastric.

Back 27

- Aorta
o external iliac a.
 femoral a.
 deep femoral a.
• pudendoepigastric trunk
o caudal (deep) epigastric a.
o external pudendal a.
 caudal auperficial epigastric a.

Front 28

What two arteries supply the superficial blood supply to the ventral abdominal wall?

Back 28

cranial superficial epigastric a.
caudal superficial epigastric a.

Front 29

What artery supplies the caudal abdominal mammae, prepuce, and labia/scrotum?

Back 29

caudal superficial epigastric a.

Front 30

Where are the superficial inguinal lymph nodes located?

Back 30

just cranial to the pecten ossis pubis - along the dorsolateral border of the penis in the male

Front 31

what do the superficial inguinal lymph nodes drain?

Back 31

ventral half of abdominal wall

Front 32

what is the fate of the efferent vessels draining from the superficial inguinal lymph nodes?

Back 32

they unite to form one or two trunks that pass through the inguinal canal with the external pudendal artery and vein - then drain into the medial iliac lymph nodes