Muscle Groups
Superficial extrinsic
What are the: Trapezius, Latissimus dorsi, Levator scapulae, Rhomboid major, Rhomboid minor?
Longissimus
What are
Proximal attachments: broad tendon from iliac crest, sacrum, and lumbar spinous processes
Distal attachments: thoracic and cervical transverse processes (thoracis, cervicis) or mastoid process (capitis)?
Innervated by the spinal accessory nerve (CN XI)
What is the trapezius?
What is the latissimus dorsi?
What are the levator scalpulae, rhomboid major and rhomboid minor?
Intermediate
Serratus posterior inferior
What are the
Proximal: spinous processes of T11-L2
Distal: ribs 8-12?
Innervated by the thoracodorsal nerve
What is the latissimus dorsi?
Supplied by the dorsal scapular artery
What are the levator scapulae, rhomboid major and minor?
Proprioception
What are the serratus posterior superior and inferior, and rotatores?
Suboccipital
Cervicis: proximal attachments at spinous processes of T3-T6; distal attachments at transverse processes of C1-C3
Capitis: nuchal ligament and spinous processes of C7-T4; distal attachments at mated processes and lateral 1/3 superior nuchal line
What are the splenius cervicis and capitis?
Innervated by the suboccipital nerve
What are the rectus capitis posterior major, rectus capitis posterior minor, obliquus capitis superior, and obliquus capitis inferior?
Supplied by the intercostal arteries (fully or partially
What are the serratus posterior superior, serratus posterior inferior (partially), and splenius cervicis?
Rotates the glenoid fossa
What are the trapezius (rotates superiorly), rhomboid major and minor (rotates inferiorly)
Segmental
Attachments traverse between adjacent transverse processes of C2-L5 vertebrae
What are the intertransversariis?
Innervated by dorsal scapular nerve
What are the levator scapulae, rhomboid major, and rhomboid minor?
Supplied by the vertebral and occipital arteries
What are the rectus capitis posterior major and minor, obliquus capitis superior and inferior?
Assists in extension of the spine
What are the interspinales?
Deep intrinsic (superficial, intermediate, and deep)
What are the:
Superficial: splenius (cervicis and Capitis)
Intermediate: Iliocostalis (lumborum, thoracic, cervicis), Longissimus (thoracic, cervicis, Capitis), Spinalis (thoracis, cervicis)
Deep (transversospinales): Semispinalis (thoracic, cervicis, Capitis), multifidus, rotatores (Longus and brevis)
Proximal attachment: spinous process of C2
Distal attachment: transverse process of C1
What is the obliquus capitis inferior?
Innervated by the dorsal rami of spinal nerves (8 different muscles)
Splenius (cervicis and Capitis), iliocostalis (lumborum, thoracic, cervicis), spinalis (thoracis, cervicis), semispinalis (thoracis, cervicis, Capitis), multifidus, rotatores (lonugs and brevis), interspinalis (cervicis, thoracis, lumborum), intertranscersarii (thoracis, lumborum), and levatores costarum (brevis and longus)?
Segmentally supplied by the deep cervical, intercostal, subcostal, and lumbar arteries (9 muscles)
What are the iliocostalis, longissimus, spinalis, semispinalis, multifidus, rotatores, interspinales, intertransversarii, and levatores costarum?
Rotation of spine to the opposite side
What are the semispinalis, multifidus, rotatores?