Head, Neck, + Trunk Muscles

Rectus Capitis Anterior + Lateralis (Both Short Muscles)

Primary Neck Flexor, Deep Muscle

Longus Capitis + Colli

Primary Neck Flexor, Deep Muscle

Sternocleidomastoid

O: Sternum, Clavicle

I: Mastoid process

A: Bilateral: neck √ | Unilateral: Lateral √ same (ipsi) + Rotates to opposite (contra)

N: Accessory (CN XI), C2-3

Scalenes

Deep to SCM

A: Bilateral: neck √ | Unilateral: Lateral √ same (ipsi)

Splenius Capitis + Cervicis

Attachments: Occiput & nuchal ligament; spinous processes cervical and upper thoracic vertebrae

A: Bilateral: head & neck extension | Unilateral: Lateral √ same (ipsilateral) +Rotates to same (ipsilateral)

Prime Neck Flexors

SCM (bilat), Longus Capitis, Longus Colli

Prime Neck Extendors

Splenius Capitis + Cervis, Semispinalis Capitis, Up Trap, Longissimis Cervis + Capitis

Prime Neck Lateral Flexion

Ipsilateral: SCM, Scalenes, Splenius Capitis + Cervis, Lev Scap, Longissimis Cervis

Prime Neck Rotators

Ipsilateral: Splenius Capitis + Cervis

Contralateral: SCM, Semispinalis Capitis, Multifundus assist

Rectus Abdominis

O: Pubis

I: Xiphoid, ribs 5-7

A: trunk √

N: regional

External Abdominal Obliques

O: lateral lower 8 ribs

I: Iliac crest & linea alba

A: Bilateral: trunk √ | Unilateral: Lateral √ same (ipsi) + Rotates to opposite (contra)

Internal Abdominal Obliques

O: Iliac crest, thoracolumbar fascia

I: Ribs 10-12

A: Bilateral: trunk √ | Unilateral: Lateral √ same (ipsi) + Rotation same (ipsi)

Transverse Abdominis

Transverse Fibers, Deep, Compresses Abdomen

Erector Spinae (Spinalis, Longissimus, Iliocostalis)

Extension, Regional Inervtaion

Quadratus Lumborum

O: Iliac crest

I: 12th rib, L 1-5

A: Trunk lateral √ | Hip Hike

Intertransversarii + Interspinalis

Deep Back Stabilizer (I+I)

Multifidus + Rotatores

Deep Back Stabilizers (M+R)

Prime Trunk Flexors

Rectus Abdominis, External and Internal Oblique,

Prime Trunk Extenders

Erector Spinae Group (ILS) + Multifidus

Prime Trunch Lateral Flexors

Ipsilateral: External and Internal Obliques, Quadratus Lumborum, Erector Spinae (I,L)

Prime Trunk Rotators

Contralateral: External Oblique | Ipsilateral: Internal Oblique | Assist: Multifidus and Erector Spinae

Prime Jaw Openers

Lateral Pterygoid, Digastric, Mylohyoid, Geniohyoid

Prime Jaw Closers

Temporalis, Masseter, Medial Pterygoid