Abdominal Wall And Diapragm Flashcards

1
Q

What are the components of the abdominal wall

A

Musculoponeurotic walls
Diaphragm
Pelvic floor muscles
Lumbar section of vertebral column

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2
Q

What is internal pressure controlled by

A

Voluntary or reflexively by the contraction/ relaxation of the diaphragm and anterolateral walls

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3
Q

How many quadrants are there in the abdomen

A

4: created by the imaginary lines of the median plane and transumbilical plane

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4
Q

How many regions are on the abdomen

A

9 regions created by two horizontal lines and two vertical midclavicular lines

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5
Q

What is the subcostal plane

A

Touching the inferior border of the 10th costal cartilage on both sides

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6
Q

What is the transtubercular plane

A

Tubercle on the iliac crest, goes through the body of the 5th lumbar vertebra

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7
Q

What are the functions of the muscles of anterior abdominal wall

A

Form a strong expandable support
Protect the abdominal viscera
Oppose the diaphragm
Move the trunk/maintain posture

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8
Q

What is the anterolateral abdominal wall bounded by

A

SUPERIORLY cartilage of the 7-10 rib and xiphoid process
Inferiorly by the inguinal ligament and superior margin of the anterolateral aspect of the pelvic girdle

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9
Q

What does the Rectus abdominis do

A

Compresses the viscera but can flex the trunk In the lumbar region

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10
Q

What does the pyramidalis muscle do

A

Draws the linea alba downward toward the pubis

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11
Q

Where the the external oblique muscle run

A

Ribs 5-12 to the iliac crest and pubis and also attached to linea alba

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12
Q

What is the linea semilunaris

A

Lateral limits of the Rectus sheath more apparent in lean individuals

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13
Q

What do the inguinal ligament do

A

Holds down the structures passing between the pelvis and thigh

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14
Q

What does the inguinal ligament represent

A

A thickening of external oblique aponeurosis running from ASIS to the pubis tubercle

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15
Q

What is the Rectus sheath

A

Strong incomplete fibrous compartment of the Rectus abdominus and pyramidalis muscles

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16
Q

What arteries and veins are within Rectus sheath

A

Inferior and superior epigastric artery and vein

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17
Q

What is the line of demarcation

A

The Arcuate line

18
Q

What are the components of the Rectus sheath

A

External abdominal oblique and aponeurosis
Internal abdominal oblique and aponeurosis
Transverse abdominal and aponeurosis

19
Q

What are the only things inferior to actuate line

A

Transversalis fascia
Parietal perineum

20
Q

Arterial supply ti the abdominal was starts as Internal thoracic and splits to what

A

Musculophrenic and superior epigastric a

21
Q

Anterolateral supply to the abdominal wall via abdominal aorta splits to

A

Posterior intercostal aa (these travel with anterior rami of lower thoracic spinal nerves along inferior edge of ribs

22
Q

Arterial supply to abdominal wall via external iliac / femoral is what

A

Superior epigastric a
Circumflex iliac a
Inferior epigastric a

23
Q

The anterior rami of spinal nerves T7-T12 travel within what

A

Posterior thoracic wall

24
Q

Lower intercostal nerves reach the costal margin and continue traveling anteromedially as what

A

Thoraciabdominal nerves

25
Q

Does the thoracoabdominal nerves participate in plexus formation

A

NO

26
Q

Where do the intercostal nerves enc

A

The innermost and impersonal intercostal muscles and continues between the internal oblique and transverse abdominal muscles

27
Q

Where does the lateral cutaneous branch emerge

A

In the anterior Axillary line and bifurcate to anterior and posterior divisions

28
Q

What does the anterior cutaneous branches pierce

A

The Rectus sheath close to midline

29
Q

What is the inguinal canal

A

An oblique 4cm long passageway to descent the testes during fetal life

30
Q

What is the lacunar ligament

A

Deep fibers of inguinal ligament attaching to superior pubic Remus to form the medial border of subinguinal space

31
Q

What are the lateral and medial crura

A

Parts of the external oblique aponeurosis which surrounds the superficial inguinal ring

32
Q

What is the inguinal flax aka conjoint tendon

A

Medial reinforcement of the posterior wall of the inguinal canal formed by the fused aponeurosis of the internal oblique and transverse abdominis

33
Q

Where does the indirect inguinal hernia enter

A

Deep inguinal ring lateral to the inferior epigastric vein

34
Q

What is the lateral umbilical fold =

A

Inferior epigastric a and vein which conducts blood

35
Q

What is the medial umbilical fold (paired)

A

Obliterated umbilical arteries (from fetal life )

36
Q

What is the medial umbilical fold Single

A

Obliterated urachus, a duct which connected the urinalysis bladder to the umbilcus

37
Q

What is supravesical fossa

A

Between median/medial folds

38
Q

What is medial inguinal fossae

A

Hasselbach triangle between medial/lateral folds

39
Q

What is lateral inguinal fossae

A

Lateral to lateral fold
Most common area for an inguinal hernia

40
Q

What are the inguinal triangle boundaries

A

The Rectus abdominis m Medially
The inguinal ligament inferiorly
The inferior epigastric artery and vein laterally

41
Q

What are the contents of the spermatic cord

A

Ductus deferens
Testicular artery
Pampiniform venous plexus
Autonomic nerves
Genitalia branch of genitofemoral nerve
Lymphatic vessels

42
Q

What supplies the cremaster muscle

A

Genitalia branch of genitalfemoral nerve