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33 Cards in this Set

  • Front
  • Back
Splenius capitis
Origin - Lower part of ligamentum nuchae and lower cervical spines

Insertion - Mastoid process and superior nuchal line

Action - Together; extend head. Individually; lateral flexion and rotation

Nerve - PPR of spinal nerves
Splenius cervicis
Origin - Spines of T3 to T6

Insertion - Transverse processes of C1 to C4

Action - Together; extend head. Individually; lateral flexion and rotation

Nerve - PPR of spinal nerves
Iliocostalis lumborum
Origin - body of erector spinae, ribs at ascending levels

Insertion - lower ribs

Action - Together; extend back. Individually; lateral flexion and rotation

Nerve - PPR of spinal nerves
Iliocostalis thoracis
Origin - body of erector spinae, ribs at ascending levels

Insertion - upper ribs

Action - Together; extend back. Individually; lateral flexion and rotation

Nerve - PPR of spinal nerves
Iliocostalis cervicis
Origin - body of erector spinae, ribs at ascending levels

Insertion - transverse processes of C4 to C6

Action - Together; extend back. Individually; lateral flexion and rotation

Nerve - PPR of spinal nerves
Longissimus thoracis
Origin - body of erector spinae, transverse processes of ascending vertebrae

Insertion - transverse processes of thoracic vertebrae

Action - Together; extend back. Individually; lateral flexion and rotation

Nerve - PPR of spinal nerves
Longissimus cervicis
Origin - body of erector spinae, transverse processes of ascending vertebrae

Insertion - transverse processes of cervical vertebrae

Action - Together; extend back. Individually; lateral flexion and rotation

Nerve - PPR of spinal nerves
Longissimus capitis
Origin - body of erector spinae, transverse processes of ascending vertebrae

Insertion - mastoid process of skull

Action - Together; extend back. Individually; lateral flexion and rotation

Nerve - PPR of spinal nerves
Spinalis thoracis
Origin - spines of ascending vertebrae

Insertion - spines of thoracic vertebrae

Action - Together; extend back. Individually; lateral flexion and rotation

Nerve - PPR of spinal nerves
Spinalis cervicis
Origin - spines of ascending vertebrae

Insertion - spines of cervical vertebrae

Action - Together; extend back. Individually; lateral flexion and rotation

Nerve - PPR of spinal nerves
Spinalis capitis
Origin - spines of ascending vertebrae

Insertion - between superior and inferior nuchal lines

Action - Together; extend back. Individually; lateral flexion and rotation

Nerve - PPR of spinal nerves
Transversospinalis
Origin - transverse processes of ascending vertebrae

Insertion - spines of ascending vertebrae

Action - Together; extend head and spine. Individually; lateral flexion and rotates spine

Nerve - PPR of spinal nerves
Semispinalis thoracis (part of transversospinalis)
Origin - transverse processes of ascending vertebrae

Insertion - spines of higher (+5/6) thoracic vertebrae

Action - Together; extend head and spine. Individually; lateral flexion and rotates spine

Nerve - PPR of spinal nerves
Semispinalis (cervicis) part of transversospinalis
Origin - transverse processes of ascending vertebrae

Insertion - spans 5 or 6 vertebrae to insert on spines of cervical vertebrae

Action - Together; extend head and spine. Individually; lateral flexion and rotates spine

Nerve - PPR of spinal nerves
Semispinalis capitis (part of transversospinalis)
Origin - transverse processes of ascending vertebrae

Insertion - spans 5 or 6 vertebrae to insert between superior and inferior nuchal lines

Action - Together; extend head and spine. Individually; lateral flexion and rotates spine

Nerve - PPR of spinal nerves
Multifidus (part of transversospinalis)
Origin - transverse processes of ascending vertebrae

Insertion - spines of higher (+3) vertebrae

Action - Together; extend head and spine. Individually; lateral flexion and rotates spine

Nerve - PPR of spinal nerves
Rotatores (part of transversospinalis)
Origin - transverse processes of ascending vertebrae

Insertion - spines of higher (+2) vertebrae

Action - Together; extend head and spine. Individually; lateral flexion and rotates spine

Nerve - PPR of spinal nerves
Interspinales
Origin - spine of vertebrae below

Insertion - spine of vertebrae above

Action - extend and rotate spine

Nerve - PPR of spinal nerves
Intertransversarii
Origin - transverse process below

Insertion - transverse process above

Action - Together; stabilize the spine. Individually; lateral flexion

Nerve - PPR of spinal nerves
Trapezius
Origin - all thoracic and cervical vertebral spines and ligamentum nuchae

Insertion - spine and acromion of scapula, superior lateral third of clavical

Action - upper fibers elevate scapula, lower fibers depress scapula, middle fibers retract scapula; also rotates scapula laterally--so glenoid fossa points up

Nerve - Cranial nerve XI (accessory nerve) and some APR of C3-C4

Note: Rhomboid major, Lat d., and trapezius form the triangle of auscultation
Latissimus dorsi
Origin - Lumbodorsal fascia, spines of T6-T12, iliac crest, lower 3-4 ribs

Insertion - humerus (intertubercular sulcus)

Action - adducts arm, extends arm, rotates arm medially

Nerve - thoracodorsal nerve

Note: Rhomboid major, Lat d., and trapezius form the triangle of auscultation
Levator scapula
Origin - Transverse processes of C1-C4

Insertion - superior aspect of vertebral border of the scapula

Action - elevates scapula; rotates scapula medially (so glenoid fossa points down)

Nerve - dorsal scapular
Rhomboids
Origin - Spinous processes of C7-T5

Insertion - vertebral border of scapula

Action - retracts scapula; rotates scapula medially (glenoid fossa points down)

Nerve - dorsal scapular

Note: Rhomboid major, Lat d., and trapezius form the triangle of auscultation
Deltoid
Origin - inferior lateral third of clavicle; acromion and spine of scapula

Insertion - humerus (deltoid tuberosity)

Action - abducts arm, flexes arm, rotates arm medially, extends arm, rotates arm laterally

Nerve - axillary
Teres major
Origin - inferior angle of scapula

Insertion - humerus (medial lip of intertubercular sulcus)

Action - adducts arm, extends arm, rotates arm medially

Nerve - lower subscapular
Supraspinatus
Origin - supraspinous fossa

Insertion - humerus (greater tubercule)

Action - abducts arm, stabilizes shoulder joint

Nerve - suprascapular
Infraspinatus
Origin - infraspinous process

Insertion - humerus (greater tubercule)

Action - rotates arm laterally, slightly adducts arm, stablizes shoulder joint

Nerve - suprascapular
Teres minor
Origin - Inferior lateral border of scapula

Insertion - Humerus (greater tubercule)

Action - rotates arm laterally, extends arm, adducts arm

Nerve - axillary
Subscapularis
Origin - subscapular fossa

Insertion - Humerus (lesser tubercule)

Action - rotates arm medially, stabilizes shoulder joint

Nerve - upper and lower subscapular
Obliquus capitis superior
Origin - transverse processes of atlas

Insertion - above inferior nuchal line

Action - Together; extends head, Individually; lateral rotation

Nerve - PPR of C1 - suboccipital nerve
Obliquus capitis inferior
Origin - spine of axis

Insertion - transverse process of atlas

Action - Together; extend head, Individually; rotates atlas and skull about dens (odontoid process)

Nerve - suboccipital nerve (PPR of C1)
Rectus capitis posterior major
Origin - spine of axis

Insertion - inferior nuchal line, lateral to r.c.p. minor

Action - Together; extend, Individually; lateral rotation

Nerve - suboccipital nerve (PPR of C1)
Rectus capitis posterior minor
Origin - posterior tubercule of atlas

Insertion - inferior nuchal line, medial to insertion of r.c.p. major

Action - Together; extend head, Individually; lateral flexion of head

Nerve - suboccipital nerve (PPR of C1)

Note: only suboccipital muscle that is not a part of the suboccipital triangle