Study Posterior Muscles of the Trunk Flash Cards

 
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Posterior Muscles of the Trunk

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What erector spinae muscles have bilateral extension?
-ILIOCOSTALIS
-LONGISSIMUS
-SPINALIS
The Iliocostalis, Longissimus and spinalis are all innervated by what nerve?
DORSAL RAMI
O
I
A
N

Rotators?
O= TRANSVERSE PROCESSES OF ALL VERTEBRAE
I= SPINOUS PROCESSES LOCATED 1-2 VERTEBRAL SEGMENTS ABOVE THE INFERIOR ATTACHMENT
A= BILATERAL EXTENSION
UNILATERAL ROTATION TO OPPOSITE SIDE
N= DORSAL RAMI C4-L4)
O
I
A
N

Rectus Capitis Posterior Minor?
O= C1
I= INFEROIR NUCHAL LINE
A= BILATERAL EXTENSION OF AO
N= SUBOCCIPITAL
O
I
A
N

Rectus Capitis Posterior Major?
O= SPINOUS PROCESS OF C2
I= INFERIOR NUCHAL LINE
A= BILATERAL EXTENSION OF AO/AA
UNILATERAL LATERAL FLEXION OF AO/ROTATION TO SAME SIDE AA
N= SUBOCCIPITAL
O
I
A
N

Quadratus Lumborum?
O= CREST OF ILIUM
I= TRANSVERSE PROCESSES OF L1-L4/12TH RIB
A= BILATERAL EXTENSION OF TRUNK
UNILATERAL LATERAL FLEXION OF THE TRUNK
N= VENTRAL RAMI (T12-L3)
O
I
A
N

Transverse Abdominis?
O= ILIAC CREST/RIBS 6-12
I= LINEA ALBA
A= FLEXION OF TRUNK
N= INTERCOSTAL NERVES (T7-T12)
O
I
A
N

Splenius Cervicis?
O= SPINOUS PROCESSES OF T3-T6
I= TRANSVERSE PROCESSES OF C1-C3
A= BILATERAL EXTENSION OF NECK
UNILATERAL IPSILATERAL ROTATION AND LATERAL FLEXION OF NECK
N= DORSAL RAMI (C2-C8)
O
I
A
N

Splenius Capitis?
O= LIGAMENTUM NUCHAE/SPINOUS PROCESSES OF C7-T3
I= MASTOID PROCESS/SUPERIOR NUCHAL LINE
A= BILATERAL EXTENSION OF HEAD AND NECK
UNILATERAL IPSILATERAL LATERAL FLEXION AND ROTATION OF HEAD AND NECK
N= DORSAL RAMI (C2-C8)
O
I
A
N

Internal Oblique?
O= ILIAC CREST
I= RIBS 9-12/LINEA ALBA
A= BILATERAL FLEXION OF THE TRUNK/POSTERIOR PELVIC TILT
N= INTERCOSTAL NERVES (T8-T12)
O
I
A
N

External Oblique?
O= RIBS 4-12
I= ILIAC CREST/LINEA ALBA
A= BILATERAL FLEXION OF TRUNK/POSTERIOR PELVIC TILT/UNILATERAL ROTATION TO THE CONTRALATERAL SIDE AND LATERAL FLEXION OF TRUNK
N= INTERCOSTAL NERVES (T8-T12)
O
I
A
N

Rectus Abdominis?
O= CREST OF PUBIS
I= XIPHOID PROCESS AND CARTILAGES OF RIBS 5-7
A= FLEXION OF THE TRUNK/POSTERIOR PELVIC TILT
N= INTERCOSTAL NERVES (T7-T12)
What are the Anterior-Lateral Muscles of the Trunk?
-RECTUS ABDOMINIS
-INTERNAL AND EXTERNAL OBLIQUES
-TRANSVERSE ABDOMINIS
O
I
A
N

Obliquus Capitis Inferior?
O= SPINOUS PROCESS OF C2
I= TRANSVERSE PROCESS OF C1
A= BILATERAL EXTENSION AA/UNILATERAL ROTATION TO SAME SIDE AA
N= SUBOCCIPITAL
O
I
A
N

Obliquus capitis superior?
O= TRANSVERSE PROCESS OF C1
I= INFERIOR AND SUPERIOR NUCHAL LINES
A= BILATERAL EXTENSION AO/UNILATERAL LATERAL FLEXION AO
N= SUBOCCIPITAL
What is the action of the iliocostalis muscles?
BILATERAL EXTENSION
UNILATERAL LATERAL FLEXION
What nerve do the iliocostalis muscles innervate with?
DORSAL RAMI
What are the muscles of the iliocostalis?
-ILIOCOSTALIS LUMBORUM
-ILIOCOSTALIS THORACIS
-ILIOCOSTALIS CERVICIS
O
I
A
N

Iliocostalis Cervicis?
O= RIBS 3-7
I= TRANSVERSE PROCESSES C4-C6
A= BILATERAL EXTENSION/UNILATERAL LATERAL FLEXION
N= DORSAL RAMI
O
I
A
N

Iliocostalis Thoracis?
O= RIBS 6-12
I= RIBS 1-6
A= BILATERAL EXTENSION/UNILATERAL LATERAL FLEXION
N= DORSAL RAMI
O
I
A
N

Iliocostalis Lumborum?
O= COMMON TENDON
I= RIBS 6-12
A= BILATERAL EXTENSION/UNILATERAL LATERAL FLEXION
N=DORSAL RAMI
What are the transversospinal muscles?
-SEMISPINALIS
-MULTIFIDUS
-ROTATORS
What are the Errector Spinae muscles?
-ILIOCOSTALIS
-LONGISSIMUS
-SPINALIS
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