Abdominal Wall (Exam 2)

Question 1

Flank is also called what?

Answer 1

lateral abdominal region

Question 2

What is clinically relevant about the paralumbar fossa

Answer 2

where most incisions start

Question 3

Borders of the flank

Answer 3

last rib –> cranial border of thigh

Question 4

Paralumbar fossa is more prominent in (dairy/beef) cattle.

Answer 4

dairy

Question 5

Borders of paralumbar fossa (3)

Answer 5

transverse processes of lumbar vertebrae
last rib (T13)
ridge by internal abdominal oblique M

Question 6

Fold of the flank is between what 2 structures?

Answer 6

abdominal wall + pelvic limb (stifle region)

Question 7

Fold of the flank has a (dorsal/ventral/medial/lateral) border of what muscle?

Answer 7

ventral
cutaneous trunci M

Question 8

2 lymph nodes prevalent to the abd wall

Answer 8

Lnn of paralumbar fossa
Subiliac Ln (prefemoral)

Question 9

What do Lnn of Paralumbar Fossa collect lymph from?

Answer 9

superficial part of abd wall + skin
(but anything in region)

Question 10

_____ is a huge Ln that is subcutaneous and sits on fascia of tensor fascia lata muscle.

Answer 10

subiliac (prefemoral)

Question 11

Where does Subiliac Ln collect lymph from?

Answer 11

pelvis, pelvic limb, abd wall
utter!

Question 12

An enlarged Subiliac Ln can indicate what disease?

Answer 12

mastitis

Question 13

All muscles of the abdominal wall are innervated by ______ except what muscle?

Answer 13

ventral branches of multiple spinal Nn (thoracic/lumbar)
cutaneous trunci M

Question 14

First layer of abdominal wall muscle

Answer 14

cutaneous trunci M

Question 15

Cutaneous trunci M is (thin/thick) dorsally and (thin/thick) ventrally.

Answer 15

thin
thick

Question 16

Attachment of Cutaneous Trunci M

Answer 16

superficial fascia

Question 17

Fiber direction of Cutaneous trunci M

Answer 17

cranial/caudal (horziontal)

Question 18

Innervation of Cutaneous trunci M

Answer 18

lateral thoracic N

Question 19

External Abdominal Oblique M is covered by _______.

Answer 19

tunica flava abdominis

Question 20

Which abd wall muscle contributes to some suspension of the utter?

Answer 20

external abdominal oblique M

Question 21

Attachments of External Abdominal Oblique M

Answer 21

last 8 ribs + linea alba

Question 22

Fiber direction of External Abdominal Oblique M

Answer 22

caudoventrally

Question 23

Fibers of External Abdominal Oblique M end at ______ and _____ structures and then turns into a _____.

Answer 23

tuber coxae
elbow
aponeurosis

Question 24

Attachment of Internal Abdominal Oblique M

Answer 24

wing of ilium (tuber coxae)
some tips of transverse processes of lumbar vertebrae

Question 25

Internal Abdominal Oblique M fiber direction

Answer 25

cranially & ventrally

Question 26

Internal, External Abdominal Oblique M, and Transversus Abdominis M continue as aponeurosis to what structure?

Answer 26

linea alba

Question 27

(Internal/External) Abdominal Oblique M is deep to the other.

Answer 27

internal

Question 28

Deepest abdominal wall muscle

Answer 28

transversus abdominis M

Question 29

Innervation of Transversus Abdominis M

Answer 29

last thoracic + lumbar spinal Nn

Question 30

Origin of Transversus Abdominis M

Answer 30

aponeurosis from tip of transverse processes + tuber coxae

Question 31

Transversus Abdominis M is not further caudally that what structure?

Answer 31

tuber coxae

Question 32

Fiber direction of Transversus Abdominis M

Answer 32

straight dorsoventrally (vertical)

Question 33

What is also known as the "straight muscle"

Answer 33

Rectus Abdominis M

Question 34

Origin of Rectus Abdominis M

Answer 34

3rd rib

Question 35

Attachment of Rectus Abdominis M

Answer 35

ox coxae

Question 36

What connects the Rectus Abdominis M to the Ox Coxae?

Answer 36

prepubic tendon (very thick - occasional rupture during pregnancy)

Question 37

Layer of fascia that encloses Rectus Abdominis M

Answer 37

rectus seath

Question 38

Layer of fascia that encloses Rectus Abdominis M

Answer 38

rectus sheath

Question 39

Rectus Sheath is formed by ______ of the other 3 abd wall muscles.

Answer 39

aponeurosis

Question 40

2 parts of the Rectus Sheath

Answer 40

external lamina internal lamina

Question 41

What part of the Rectus Sheath is always present and on the superficial surface?

Answer 41

external lamina

Question 42

What part of the Rectus Sheath is not present past the Tuber Coxae?

Answer 42

internal lamina

Question 43

External lamina = combined aponeurosis of ____ and ____ Mm.

Answer 43

internal + external abd oblique

Question 44

Internal lamina is formed by aponeurosis of what muscle?

Answer 44

transversus abdominis M