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MUSCLE
REGION
ORIGIN
INSERTION
PRIMARY
ACTION
SECONDARY
ACTION
INNERVATION
ventral rami of T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
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Ipsilateral lumbar to thoracic lateral flexion, contralateral lumbar to thoracic rotation, expiration
Lumbar to thoracic flexion
outer lip of anterior 2/3 iliac crest, linea alba, pubic tubercle, thoracolumbar fascia (TLF)
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5th to 12th ribs, Costal cartilages of 5th to 10th ribs
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Torso
External Oblique
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ventral rami of T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
Show nerve
Ipsilateral lumbar to thoracic lateral flexion, contralateral lumbar to thoracic rotation, expiration
Lumbar to thoracic flexion
outer lip of anterior 2/3 iliac crest, linea alba, pubic tubercle, thoracolumbar fascia (TLF)
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5th to 12th ribs, Costal cartilages of 5th to 10th ribs
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Torso
External Oblique
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ventral rami of adjacent spinal nerves
(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
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Inspiration
Upper border of the 2nd to 12th ribs
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Lower border of 1st to 11th ribs
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Torso
Intercostals
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Femoral nerve
(L2, L3)
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Hip abduction, Hip medial rotation, Knee medial rotation
Knee flexion and hip flexion
medial proximal shaft of tibia via pes anserine
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anterior superior iliac spine (ASIS)
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Lower Limb
Sartorius
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ventral rami of T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
Show nerve
Ipsilateral lumbar to thoracic lateral flexion, ipsilateral lumbar to thoracic rotation, expiration
Lumbar to thoracic flexion
lateral 2/3 of inguinal ligament, middle lip of anterior 2/3 iliac crest, body of pubis, pubic crest, thoracolumbar fascia (TLF) - most fibres
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9th to 12th ribs
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Torso
Internal Oblique
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ventral rami of T1 to T12
(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
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Expiration
2nd to 6th costal cartilages
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body of sternum, xiphoid process, 4th to 7th costal cartilages
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Torso
Transversus Abdominis
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ventral rami of T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
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Core stabilizer
Lumbar to thoracic flexion
pubic symphysis, pubic crest
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xiphoid process, Costal cartilages of 5th to 7th ribs
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Torso
Rectus Abdominis
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ventral rami of T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
Show nerve
Ipsilateral lumbar to thoracic lateral flexion, contralateral lumbar to thoracic rotation, expiration
Lumbar to thoracic flexion
outer lip of anterior 2/3 iliac crest, linea alba, pubic tubercle, thoracolumbar fascia (TLF)
Show attachments
5th to 12th ribs, Costal cartilages of 5th to 10th ribs
Show attachments
Torso
External Oblique
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ventral rami of T6 to T12, L1 spinal nerve
(T6, T7, T8, T9, T10, T11, T12)
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Ipsilateral lumbar to thoracic rotation
Raising intra-abdominal pressure
lateral 1/3 of inguinal ligament, inner lip of anterior 2/3 iliac crest, pubic crest, thoracolumbar fascia (TLF)(most fibres)
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costal cartilages of 7th to 10th ribs, 11th to 12th ribs
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Torso
Transversus thoracis
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dorsal ramus of C1
(C1)
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Head ipsilateral Rotation
transverse process of C1 (atlas)
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spinous process of C2 (axis)
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Torso
Obliquus Capitis Inferior
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ventral rami of T1 to T12
(T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12)
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Expiration
2nd to 6th costal cartilages
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body of sternum, xiphoid process, 4th to 7th costal cartilages
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Torso
Transversus Abdominis
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ventral rami of T7 to T12, L1 spinal nerve
(T7, T8, T9, T10, T11, T12, L1)
Show nerve
Core stabilizer
Lumbar to thoracic flexion
pubic symphysis, pubic crest
Show attachments
xiphoid process, Costal cartilages of 5th to 7th ribs
Show attachments
Torso
Rectus Abdominis
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MUSCULOSKELORDLE
Anatomy muscle guessing game
Abductor Digiti Minimi
Lower Limb
Abductor Digiti Minimi
Upper Limb
Abductor Hallucis
Lower Limb
Abductor Pollicis Brevis
Upper Limb
Abductor Pollicis Longus
Upper Limb
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