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Abdomen Anatomy > Muscles- ABDOMINAL WALL > Flashcards

Muscles- ABDOMINAL WALL Flashcards

1
Q

What are the Main Layers of the Anterolateral Abdominal Wall?

A

1) SKIN

2) FASCIA

3) MUSCLE

4) PARIETAL PERITONEUM

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2
Q

BELOW THE UMBILICUS- What are the 2 LAYERS OF SUPERFICIAL FASCIA in the ABDOMINAL WALL?

A

CAMPERS FASCIA

SCARPERS FASCIA

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3
Q

What are the differences between the Campers and Scarpers Fascia?

A

1) CAMPERS FASCIA- Fatty and Superficial

2) SCARPERS FASCIA- Membraneous and Deeper

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4
Q

Below the INGUINAL LIGAMENT, where does the SCARPER’S FASCIA attach/ Blend in with?

A

FASCIA LATA

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5
Q

What does the SCARPER’S FASCIA form in the penis?

A

Superficial Perineal fascia of Colles

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6
Q

How are the Muscles of the Abdominal wall classified?

A

1) FLAT MUSCLES

2) VERTICAL MUSCLES

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7
Q

What are the FLAT MUSCLES of the Abdominal wall?

A

1) EXTERNAL OBLIQUE

2) INTERNAL OBLIQUE

3) TRANSVERSUS ABDOMINIS

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8
Q

Describe the Attachments of the EXTERNAL OBLIQUE

A

PROXIMAL- Ribs 5-12

DISTAL- Iliac Crest and Pubic Tubercle

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9
Q

What does the Aponeurosis of the External Oblique form?

A

INGUINAL LIGAMENT

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10
Q

What is the Nerve Supply of the External Oblique Muscle?

A

-Thoracoabdominal Nerves (T7-T11)

-Subcostal Nerve (T12)

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11
Q

EXTERNAL OBLIQUE MUSCLE

A
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12
Q

What DIRECTION do the FIBRES of EXTERNAL OBLIQUE TRAVEL?

A

INFERIOMEDIALLY

(HANDS IN POCKETS)

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13
Q

Describe the Attachments of the INTERNAL OBLIQUE MUSCLE

A

PROXIMAL- Ribs 10-12

DISTAL- Inguinal Ligament, Iliac Crest

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14
Q

What is the NERVE Supply of the Internal Oblique Muscle?

A

-Thoracoabdominal Nerves (T7-T11)

-Subcostal Nerve (T12)

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15
Q

INTERNAL OBLIQUE MUSCLE

A
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16
Q

What DIRECTION do the FIBRES of INTERNAL OBLIQUE TRAVEL?

A

SUPEROMEDIALLY

17
Q

Describe the Attachments of the TRANSVERSUS ABDOMINUS?

A

PROXIMAL- Costal Cartilage of 7-12 ribs

DISTAL- Inguinal Ligament

18
Q

What is the NERVE Supply of the TRANSVERSUS ABDOMINUS?

A

-Thoracoabdominal Nerves (T7-T11)

-Subcostal Nerve (T12)

19
Q

TRANSVERSUS ABDOMINUS

A
20
Q

What Layer is found beneath the Transversus Abdominus?

A

TRANSVERSALIS FASCIA

21
Q

What are the VERTICAL MUSCLES of the Abdominal Wall?

A

1) RECTUS ABDOMINIS

2) PYRAMIDALIS

22
Q

What structure splits the RECTUS ABDOMINIS Muscle?

A

Linea Alba

23
Q

What are the attachments of the RECTUS ABDOMINIS Muscle?

A

PROXIMAL- Costal Cartilage 5-7 Ribs

DISTAL- Pubis

24
Q

What NERVE Innervates the RECTUS ABDOMINIS MUSCLE?

A

Thoracoabdominal Nerves (T7-11)

25
Q

RECTUS ABDOMINIS MUSCLE

A
26
Q

What Structure surrounds the RECTUS ABDOMINIS MUSCLE?

A

RECTUS SHEATH

27
Q

What structures form the RECTUS SHEATH?

A

Aponeurosis of:
-TRANSVERSUS ABDOMINIS
-INTERNAL OBLIQUE
-EXTERNAL OBLIQUE

28
Q

What Muscles are contained within the Rectus Sheath?

A

1) RECTUS ABDOMINIS

2) PYRAMIDALIS

29
Q

Where is the ARCUATE LINE Found?

A

Halfway between the UMBILICUS and PUBIC CREST

30
Q

Describe the Anatomy of the RECTUS SHEATH ABOVE THE ARCUATE LINE

A

-EXTERNAL OBLIQUE APONEUROSIS splits to form the ANTERIOR LAYER OF THE SHEATH

-INTERNAL OBLIQUE APONEUROSIS splits to form the ANTERIOR and POSTERIOR walls of the RECTUS SHEATH

-TRANSVERSUS ABDOMINUS FASCIA forms the POSTERIOR WALL of the RECTUS SHEATH

31
Q

Describe the Anatomy of the RECTUS SHEATH BELOW the ARCUATE LINE

A

THE APONEUROSIS OF THE EXTERNAL OBLIQUE, INTERNAL OBLIQUE AND TRANSVERSUS ABDOMINUS ONLY FORM THE ANTERIOR WALL OF THE RECTUS SHEATH

THERE IS NO POSTERIOR WALL OF THE RECTUS SHEATH BELOW THE ARCUATE LINE

32
Q

RECTUS SHEATH AND ARCUATE LINE

A
33
Q

What blood vessels perforate the rectus abdominis at the level of the ARCUATE LINE?

A

INFERIOR EPIGASTRIC ARTERY

INFERIOR EPIGASTRIC VEIN

34
Q

Where does the Inferior Epigastric Artery Come from?

A

EXTERNAL ILIAC ARTERY

35
Q

Where does the Inferior Epigastric Vein Drain?

A

EXTERNAL ILIAC VEIN

36
Q

What is Carnett’s Sign?

A
  • Palpation of the abdomen with abdominal muscles contracted
  • If pain is increased…then the source of abdominal pain is likely within the abdominal wall
37
Q

What Bloods vessel bleeds in a rectus sheath haematoma?

A

Inferior Epigastric vessels

Abdomen Anatomy (13 decks)

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