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Y1 BS- Gastrointestinal > Anatomy Interior Abdominal Wall - Lecture 3 > Flashcards

Anatomy Interior Abdominal Wall - Lecture 3 Flashcards

1
Q

What are the three anterolateral abdominal muscles from superficial to deep?

A

External oblique
Internal oblique
Transversus abdominis

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2
Q

Which type of inguinal hernia is congenital?

A

Indirect

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3
Q

What is the name of the thickened bit of aponeuorosis in the midline

A

Linea alba

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4
Q

Between which two parts is the ingiunal ligament between?

A

ASIS and pubic tubercle

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5
Q

Below the umbilicus:

What is anterior to the rectus abdominis

A 
Skin
Fat
External oblique aponeurosis 
Internal oblique aponeurosis 
Transversus abdominis aponeurosis
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6
Q

At which intercostal space does the internal thoracic artery bifurcate into a musculophrenic artery and superior epigastric artery?

A

6th/ 7th intercostal space

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7
Q

What does the internal thoracic artery split into?

A 
Superior epigastric artery 
Musculophrenic artery (laterally, gives rise to some intercostal arteries)
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8
Q

Which artery does the internal thoracic artery originate from?

A

Subclavian artery

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9
Q

Where does the inferior epigastric artery originate from?

A

The external iliac

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10
Q

What does the common iliac split into

A

An external iliac and internal iliac

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11
Q

What is a direct hernia

A

Bowel enters the canal through through a weakness in the posterior wall of the canal.
Acquired

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12
Q

What does the arcuate line signify

A

The change in formation of the rectus sheath (difference between above and below the umbilicus).

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13
Q

Above the umbilicus:

What is posterior to the rectus abdominis

A

Half of external oblique aponeurosis
Transversus abdominis aponeurosis
Transversalis fascia
Parietal peritoneum

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15
Q

Which three arteries are found in the spermatic cord

A

Testicular artery
Cremasteric artery
Artery of ductus deferens

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16
Q

What is the rectus sheath formed by?

A

The aponeurosis of all three muscles: external oblique, internal oblique, transversus abdominis

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17
Q

Where does the femoral artery originate from?

A

The external iliac (becomes the femoral artery after the ingiunal ligament)

17
Q

Above the umbilicus:

What is anterior to the rectus abdominis

A

Skin
Fat
External oblique aponeurosis
Half of internal oblique aponeurosis

19
Q

Which two arteries does the external iliac give rise to?

A

Inferior epigastric

Femoral artery

19
Q

Between which vertebrate are all the thoracoabdominal nerves found?

A

T7 to T12

21
Q

A split in the aponeurosis of which muscle forms the superficial inguinal ring?

A

External oblique

22
Q

What is found in the inguinal canal in males

A

Spermatic cord

23
Q

What is found in the inguinal canal in females

A

Round ligament of the uterus

24
Q

What the two types of ingiunal hernias?

A

Direct and indirect

25
Q

In which type of hernia does it leave the abdomen medial to the inferior epigastric vessels

A

Direct

26
Q

At which vertebrae level does the abdominal aorta bifurcate into a left and right common iliac.

A

L4/ L5

27
Q

What is an indirect hernia

A

Protrusion occurs at level of deep inguinal ring - due to patent processus vaginalis

27
Q

What nerves are found in the spermatic cord?

A

Sympathetic nerve fibres

Genital branch of genitofemoral nerve

28
Q

Which type of inguinal hernia is most likely to enter the scrotum

A

Indirect

28
Q

Where is the ductus deferens found?

A

In the spermatic cord

30
Q

Below the umbilicus:

What is posterior to the rectus abdominis

A

Transversalis fascia

Pareital peritoneum

30
Q

In which type of hernia does the bowel leave the abdomen lateral to the inferior epigastric vessels?

A

Indirect

31
Q

In which type of inguinal hernia does the protrusion happen through a weakened part of the abdominal wall?

A

Direct

33
Q

In which type of inguinal hernia does the protrusion go through the deep ring, the inguinal canal and exit through the superficial ring?

A

Indirect hernia

34
Q

What forms the floor of the inguinal canal?

A

Inguinal ligament

35
Q

Why is the inguinal triangle of Hesselbach the weakest part of the abdominal wall?

A

There is only aponeuoroses there preventing any intestines from protruding through.

38
Q

Which venous plexus is found in the spermatic cord?

A

Pampiniform venous plexus

Y1 BS- Gastrointestinal (6 decks)

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