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Anatomy > Abdominal Muscles > Flashcards

Abdominal Muscles Flashcards

1
Q

What is the shape of Iliacus

A

Large, Triangular

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2
Q

What is the location of Iliacus

A

Internal aspect of the Ilium & Sacral Ala

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3
Q

What are the Origins of Iliacus

A

Iliac Fossa, Sacroiliac Ligament

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4
Q

What is the Insertion of Iliacus

A

Lesser Trochanter of Femur

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5
Q

What are the Actions of Iliacus

A

Hip Flexion, Reverse Action, Trunk Flexion

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6
Q

What is the Innervation of Iliacus

A

Femoral Nerve

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7
Q

What is the shape of Psoas Major

A

Long, Thick and Powerful

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8
Q

What is the Location of Psoas Major

A

Adjacent to the L-Spine Vertebral Bodies, Crosses the Hip deep to Inguinal Ligament

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9
Q

What are the Origins of Psoas Major

A

TVP’s of T12-L5, Lumbar Vertebral Bodies, IVD’s of LSpine

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10
Q

What is the Insertion of Psoas Major

A

Lesser Trochanter of Femur

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11
Q

What are the Actions of Psoas Major

A

Thigh Flexion, Reverse Action with Thigh

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12
Q

What is the Innervation of Psoas Major

A

Anterior Rami L1-L3

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13
Q

What is the Location of Transversus Abdominis

A

Deep to the Internal Oblique

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14
Q

What are the Origins of Transversus Abdominis

A

Internal surface of the Costal Cartilages of Ribs 7-12, Thoracolumbar Fascia, Iliac Crest, Lateral aspect of Inguinal Ligament

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15
Q

What is the Insertion of Transversus Abdominis

A

Linea Alba

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16
Q

What is the Action of Transversus Abdominis

A

Supports the Abdominal Viscera

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17
Q

What is the Shape of Rectus Abdominis

A

Strap-Like

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18
Q

What is the Location of Rectus Abdominis

A

Covering the front of the Abdomen

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19
Q

What are the Origins of Rectus Abdominis

A

Pubic Symphysis, Pubic Crest

20
Q

What are the Insertions of Rectus Abdominis

A

Xiphoid Process, Costal Cartilages of Ribs 5-7

21
Q

What is the Action of Rectus Abdominis

A

Flexion of the Trunk

22
Q

What is the Innervation of Rectus Abdominis

A

Intercostal NN, Ventral Rami T5-T12

23
Q

What are the 3 Origins of the Diaphragm

A

Sternal - Posterior aspect of Xiphoid Process
Costal - Internal surface of Inferior 6 Ribs and Costal Cartilages
Lumbar - Superior 2 (left) and 3 (right) Lumbar Vertebrae via Musculotendinous Crura and Medial and Lateral Arcruate Ligament

24
Q

What is the Insertion of the Diaphragm

A

Central Tendon

25
Q

What are the Actions of the Diaphragm

A

Primary Muscle of Respiration, Descends when contracted - Inhalation

26
Q

What is the Shape of Quadratus Lumborum

A

Square, Thick

27
Q

What is the Location of Quadratus Lumborum

A

Posterior Abdominal wall

28
Q

What are the Origins of Quadratus Lumborum

A

Iliac Crest, Iliolumbar Ligament

29
Q

What are the Insertions of Quadratus Lumborum

A

TVP’s of L1-L4, 12th Rib

30
Q

What are the Actions of Quadratus Lumborum

A

Upright Posture
Unilateral: Lateral Flexion of Spine
Bilateral: Extension of Spine
Fixes Rib during Inspiration

31
Q

What is the Innervation of Quadratus Lumborum

A

Anterior Branches of T12 and L1-L4

32
Q

What is the Location of External Oblique

A

Most Superficial (forms an Aponeurosis, a sheet of Tendon Fibres), Ends Medially at the Linea Alba, Inferiorly folds back to form the Inguinal Ligament

33
Q

What is the Origin of External Oblique

A

External surfaces of Ribs 5-12

34
Q

What are the Insertions of External Oblique

A

Linea Alba, Pubic Tubercle, Anterior Half of the Iliac Crest

35
Q

What are the Actions of External Oblque

A

Flexion and Contralateral Rotation of the Trunk

36
Q

What is the Location of Internal Oblique

A

Deep, and at right angles to the External Oblique muscles

37
Q

What are the Origins of Internal Oblique

A

Thoracolumbar Fascia, Anterior 2/3 of Iliac Crest, Lateral aspect of Inguinal Ligament

38
Q

What is the Insertion of Internal Oblique

A

Inferior aspect of Ribs 10-12, Linea Alba, Pubis

39
Q

What are the Actions of Internal Oblique

A

Flexion and Ipsilateral Rotation of the Trunk

40
Q

What is the Shape of Tensor Fascia Lata

A

Small, Fusiform

41
Q

What is the Location of Tensor Fascia Lata

A

Anterolateral aspect of the Hip, surrounded by Fascia Lata

42
Q

What are the Origins of Tensor Fascia Lata

A

ASIS and the Anterior aspect of the Iliac Crest

43
Q

What is the Insertion of the Tensor Fascia Lata

A

Lateral Condyle of Tibia via ITB

44
Q

What are the Actions of Tensor Fascia Lata

A

Abducts, Medially Rotates, Flexes Hip/Thigh, Tightens the Fascia Lata, Helps Extend the Knee

45
Q

What is the Innervation of Tensor Fascia Lata

A

Superior Gluteal Nerve

Anatomy (30 decks)

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