Anatomy Skeletal Muscles

Occipitofrontalis

Procures

Wrinkle middle of nose

Nasalis

Flare nostrils

Orbicularis oculi

Close eyes

Levator labii superioris

Pull lips up (smile)

Zygomaticus minor

Pull corner of lips up (smile)

Zygomaticus major

Pull corner of lips up (smile)

Levator anguli Oris

Sneer

Risorius

pulls corners of mouth laterally

depressor anguli Oris

Depressor labii inferioris

Mentalis

pull down lips

Platysma

tenses skin of neck

Epicranius

back of head

Bucinator

Sucking

Corrugator supercilii

wrinkles brow

Medial rectus

Pulls medially

Lateral rectus

Pulls laterally

Inferior rectus

Pulls inferiorly

Superior rectus

Pulls superiorly

Inferior oblique

Elevates and turns laterally

Superior oblique

Depresses and turns laterally

Temporalis

elevates and retracts mandible

Masseter

Elevates and protracts mandible

Pterygoideus (Lateral + Medial)

Move mandible side to side

Genioglossus

protracts tongue

Styloglossus

retracts and elevates tongue

Hyoglossus

depresses and retracts tongue

Palatoglussus

Elevates posterior tongue

Constrictors (Superior, Middle, Inferior)

Force food to esophagus

levator veli palatini

Elevates palate

tensor veli palatini

Opens auditory tube

Mylohyoid

swallowing, elevate hyoid

Stylohyoid

swallowing, elevate hyoid

Digastric

swallowing, elevate hyoid

Geniohyoid

swallowing, elevate hyoid

Umohyoid

swallowing, airway protection

Sternohyoid

swallowing, airway protection

Sternothyroid

swallowing, airway protection

Thyrohyoid

swallowing, airway protection

Anterolateral

pull head down/flex neck

Sternocleidomastoid

flexes neck; rotates head

Splenius

semispinalis capitis

longissimus wapitis

Vertebral column

Erector spine, transversospinalis, quadrates luborum

erector spinae group

iliocostalis, longissimus, spinalis - extend spine or lateral flexion

Transversospinalis group

semispinalis, multifidus, rotatores - stabalize spine

Quadratus luborum

lateral flexion

Rotatores thoracis

Rotate vertebrae

Muscles of respiration

scalene, serratus, intercostals, transverse thoracic, diaphragm

Scalene

Inspiration

Serratus posterior superior

inspiration

Serratus posterior inferior

expiration

External intercostals

inspiration

Internal intercostals

Forced exhalation

Transverse thoracis

expiration

Diaphragm

inspiration

Abdominal wall

Obliques, transverse abdominis, rectus abdominis

External oblique

opposite side rotation

Internal oblique

same side rotation

Transverse abdominis

lateral flexion

Pelvic floor

levator ani and coccygeus

Anterior pelvic girdle

Pectoralis minor, serratus anterior, subclavius

Posterior pelvic girdle

Trapezius, levator scapulae, rhomboids

Pectoralis minor

Depress/protract shoulders

Serratus anterior

Prime mover in scapula protraction

Subclavius

depresses clavicle

Trapezius

Elevates, depresses, retracts, and rotates the scapula

Levator scapulae

elevates and inferiorly rotates scapula

Rhomboids

elevate, retract, and inferiorly rotate scapula

Muscles that move glenohumeral joint

Latissimus dorsi, pectorals major, deltoid, coracobrachialis, tires major, triceps brachia, biceps brachia, rotator cuff muscles

Rotator cuff muscles

subscapularis, infraspinatus, teres minor, supraspinatus

Latissimus dorsi

Prime arm extensor

Pectoralis major

Prime arm flexor

Deltoid

Prime arm abductor

Coracobrachialis

flexes and adducts arm

Teres major

extends, adducts, and medially rotates arm

Triceps brachii

extends forearm

Biceps brachii

flexes forearm

Subscapularis

Supraspinatus

Infraspinatus

Teres minor

Intrinsic muscles of the hand

thenar, hypothenar, midpalmar

Thenar group

moves thumb

Hypothenar group

moves digit 5

Midpalmar group

moves all fingers

Anterior upper leg compartment

Psoas major, iliacus, sartorial, quadriceps femoris

Quadriceps femoris

rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

Medial upper leg compartment

Adductor longus, adductor brevis, gracilis, pectineus, adductor magnus

Lateral upper leg compartment

Tensor fasciae latae

Posterior upper leg compartment

Hamstrings, gluteus maximus, gluteus medius, gluteus minimus, piriformis, superior gemellus, inferior gemellus, obturator internus, quadrates femoris

Hamstrings

biceps femoris, semitendinosus, semimembranosus

Anterior lower leg compartment

Extensor digitorum longus, extensor hallucis longus, fibularis tertius, tibialis anterior

Lateral lower leg compartment

Fibularis longus, fibularis brevis

Posterior lower leg compartment

Gastrocnemius, soleus, plantaris, flexor digitorum longus, flexor hallucis longus, tibialis posterior, popliteus

Intrinsic muscles of foot

Flexor digitorum brevis, lumbricals, abductor digitiminimi, adductor hallucis, quadratus plantae