Muscles Flashcards
Trapezius
INNERVATION:
spinal accessory nerve, C1-C5 cord levels
Latissimus dorsi
INNERVATION:
Thoracodorsal nerve, ventral rami C6-C8
Levator scapulae
INNERVATION:
Dorsal scapular nerve, ventral ramus C5 plus ventral rami C3, C4
Rhomboid major
INNERVATION:
Dorsal scapular nerve, ventral ramus C5 plus ventral ramus C4
Rhomboid minor
INNERVATION:
Dorsal scapular nerve, ventral ramus C5 plus ventral ramus C4
Anterior Scalene
Middle Scalene
Posterior Scalene
INNERVATIONS:
Ant - ventral rami C2-C6
Mid - Ventral rami C3-C8
Post - Ventral rami C6-C8
Splenius Capitis
INNERVATION:
Dorsal rami C3-C5
ACTION:
Laterally flex head & neck; rotate face to side; bilaterally extend head
Splenius cervicis
INNERVATION:
Dorsal rami C5-C7
ACTION:
Laterally flex & neck; rotate neck; bilaterally extend neck
Iliocostalis Lumborum
INNERVATION:
Dorsal rami lower T, all L
ACTION:
Extension, lateral flexion, rotation of L spine; lateral movement of pelvis
Iliocostalis Thoracis
INNERVATION:
Dorsal rami T1-T6
ACTION:
Extension, lateral flexion T spine
Iliocostalis Cervicis
INNERVATION:
Dorsal rami T1, T2; rarely C8
ACTION:
Extension, lateral flexion, rotation of L spine; lateral movement of pelvis
Longissimus Cervicis
INNERVATION:
Dorsal rami C4-C8; T1-T2
ACTION:
Lateral flexion of neck; bilaterally extend neck
Longissimus Capitis
INNERVATION:
Dorsal rami C1-C3, sometimes C4
ACTION:
Rotate and laterally flex head; bilaterally extend neck
Spinalis Thoracis
INNERVATION:
Dorsal rami T & upper L
ACTION:
Extend T spine
Spinalis Cervicis
INNERVATION:
Dorsal rami C
ACTION:
Lateral flexion & neck; rotation of C spine; bilaterally extend neck