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Practical 2 Form and Function > Abdominal Wall Lecture > Flashcards

Abdominal Wall Lecture Flashcards

1
Q

What comprises the dorsal portion of the abdominal cavity?

A

lumbar vertebral column, hypaxial mm.

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2
Q

What comprises the lateral portion of the abdominal cavity?

A

muscles

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3
Q

What comprises the ventral portion of the abdominal cavity?

A

muscles/linea alba

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4
Q

What comprises the cranial portion of the abdominal cavity?

A

diaphram

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5
Q

What comprises the caudal portion of the abdominal cavity?

A

pelvic inlet

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6
Q

Clinical application of flank?

A

Flanking down small ruminant and calf

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6
Q

What is the flank?

A

lateral abdominal wall not protected by structures

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6
Q

What is the abdominal cavity lined by?

A

peritoneum and containing viscera

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7
Q

Muscle that encompasses flank?

A

cutaneous trunci m.

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8
Q

Boundaries of paralumbar fossa?

A

Transverse processes of lumbar vertebra
Last rib
Tension ridge (cord of flank)

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9
Q

What species has subiliac lymph nodes? Not in what species?

A

pigs, horses, ruminants; carnivores

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10
Q

CR of fold of flank?

A

laparotomy- ruminant
laparoscopy- horse

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11
Q

AFFERENT definition?

A

towards ln.

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12
Q

EFFERENT definition?

A

out of ln.

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13
Q

What are the four primary abdominal wall mm.?

A
  1. External abdominal oblique m.
  2. Internal abdominal oblique m.
  3. Transversus abdominus m.
  4. Rectus abdominus m.
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14
Q

Fiber patterns of abdominal wall mm.?

A
  1. External abdominal oblique m.- caudoventral
  2. Internal abdominal oblique m.-
    cranioventral
  3. Transversus abdominus m.-
    dorsoventral
  4. Rectus abdominus m.-
    cranocaudal
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15
Q

What structures enter exit the inguinal canal?

A
  1. spermatic cord
  2. genitofemoral n.
  3. external pudendal a/v.
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16
Q

What is the inguinal canal?

A

fissure-like pathway between abdominal wall mm. with aponeuroses

17
Q

External rectus sheath boundary? CR?

A

Superficial surface of RA; suture holding layer

18
Q

Internal rectus sheath boundary?

A

deep surface of RA

19
Q

What is the linea alba?

A

Ventral midline junction of the rectus sheaths

20
Q

Linea alba runs?

A

Xiphoid to pubis

21
Q

Good things about the linea alba?

A

Avascular and strong suture holding site

22
Q

Layers of laparotomy?

A
  1. Skin
  2. SQ
  3. EAO
  4. IAO
  5. TA
  6. peritoneum
23
Q

What does the ventral midline celiotomy incise?

A

linea alba

24
Q

Layers of ventral midline celiotomy?

A
  1. Skin
  2. SQ
  3. EAO
  4. IAO
  5. TA
  6. Retroperitoneal fat
  7. Peritonuem
25
Q

Paramedian incision?

A

parallel to linear alba

26
Q

Paramedian incision layers?

A
  1. Skin
  2. SQ
  3. External rectus sheath
  4. RA
  5. Internal rectus sheath
  6. Retroperitoneal fat
  7. Peritoneum
27
Q

What muscle makes up the fold of the flank?

A

cutaneous trunci m.

28
Q

Which abdominal wall m. contributes to the paralumbar fossa?

29
Q

What does the subiliac lymph node drain from?

A

skin of flank, thigh, stifle area

30
Q

Where does the subiliac lymph node drain to?

A

medial iliac lnn.

31
Q

What animals have a subiliac lymph node?

A

Horse, pig, ruminant

32
Q

Feature of rectus abdominis?

A

tendinous inscriptions “6 packs”

33
Q

What does the rectus abdominis attach to caudally?

A

prepubis via prepubic tendon

34
Q

Purpose of elastic abdominal tunic? Where is it found?

A

Passive support to abdominal wall
surface of EAO

35
Q

What vessel may be interrupted in dorsal flank surgery or laparoscopy?

A

Circumflex iliac a.

36
Q

What is it meant to have a heave line and who gets one?

A

secondary to SEA
prominent multitendinous junction between hypertrophied m. of EAO/aponeurosis

horse

37
Q

What is the inguinal canal?

A

fissure like pathway between abdominal wall muscles/aponeuroses

38
Q

How is the superficial inguinal ring formed?

A

slit in aponeurosis of EAO m.

39
Q

What passes through the inguinal canal?

A
  1. External pupendal A/V
  2. Genitofemoral n.
  3. Spermatic cord
40
Q

What forms the rectus sheaths?

A

Aponeuroses of EAO, IAO, TA

41
Q

What are the two rectus sheaths?

A

External and internal

42
Q

What is the clinical importance of the external rectus sheath?

A

suture holding layer

Practical 2 Form and Function (6 decks)

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