-
Trapezius
- Origin - occipital bone & vertebrae
- Insertion - scapula & clavicle
- Action - extends & laterally flexes neck; stabilizes scapula
-
Sternocleidomastoid
- Origin - sternum & clavicle Insertion - mastoid process of the temporal bone
- Action - rotates & tilts head
-
Pectoralis Major
- Origin - clavicle, sternum & ribs
- Insertion - humerus
- Action - flexes, adducts & rotates arm
-
Deltoid
- Origin - clavicle & scapula
- Insertion - humerus
- Action - abducts, flexes, extends & rotates arm
-
Latissimus Dorsi
- Origin - vertebrae, ribs & ilium
- Insertion - humerus
- Action - extends, adducts & rotates arm; depresses scapula
-
Extensor Digiti Minimi
- Origin - radius
- Insertion - medial phalanx of small finger
- Action - extends small finger
-
Biceps Brachii
- Origin - scapula
- Insertion - radius
- Action - flexes forearm; supinates hand
-
Triceps Brachii
- Origin - scapula & humerus
- Insertion - ulna
- Action - extends forearm; adducts arm
-
Flexor Digitorum Profundus
- Origin - ulna
- Insertion - distal phalanges 2-5
- Action - flexes phalanges
-
Extensor Carpi Ulnaris
- Origin - humerus & ulna
- Insertion - metacarpals
- Action - extends & adducts hand
-
Pronator Teres
- Origin - humerus & ulna
- Insertion - radius
- Action - pronates hand
-
Supinator
- Origin - humerus & ulna
- Insertion - radius
- Action - supinates hand
-
Rectus Abdominis
- Origin - pubis
- Insertion - sternum & ribs
- Action - flexes torso; compresses abdominal wall
-
Psoas Major
- Origin - pubis
- Insertion - femur
- Action - flexes hip
-
Gluteus Maximus
- Origin - ilium, sacrum & coccyx
- Insertion - femur & iliotibial tract
- Action - extends & rotates thigh
-
Biceps Femoris
- Origin - ischium & femur
- Insertion - fibula & tibia
- Action - extends thigh; rotates leg; flexes knee
-
Rectus Femoris
- Origin - ilium
- Insertion - tibia
- Action - extends leg; flexes thigh
-
Sartorius
- Origin - ilium
- Insertion - tibia
- Action - flexes & rotates thigh; flexes leg
-
Tibialis Anterior
- Origin - tibia
- Insertion - tarsals & metatarsals
- Action - dorsiflexes & inverts foot
-
Gastrocnemius
- Origin - tibia
- Insertion - calcaneus
- Action - flexes leg; plantarflexes foot
-
Orbicularis Oculi (action)
closes eyelid
-
Orbicularis Oris (action)
closes & protrudes lips
-
Masseter (action)
elevates mandible
-
Infraspinatus (action)
rotates arm
-
Brachialis (action)
flexes forearm
-
Flexor Pollicis Longus (action)
flexes thumb
-
Extensor Digiti Minimi (action)
extends pinky finger
-
Flexor Carpi Ulnaris (action)
flexes & adducts hand
-
Gracilis (action)
adducts thigh; flexes leg
-
Peroneus Longus (action)
plantar-flexes foot; everts foot
-
Flexor Hallucis Longus (action)
flexes hallux; inverts foot
-
Extensor Digitorum Longus (action)
extends toes; dorsiflexes foot
-
Quadratus Plantae (action)
assists flexor digitorum longus with toe flexion
-
Flexor Digiti Minimi (action)
of the foot: flexes small toe
-
Adductor Longus (action)
adducts, rotates, flexes & extends thigh
-
Nerve #1 & Opening
- Olfactory
- Cribriform Plate
-
-
Nerve #3 & Opening
- Oculomotor
- Superior Orbital Fissure
-
Nerve #4 & Opening
- Trochlear
- Superior Orbital Fissure
-
-
Three Branches of Nerve #5 & Openings
- Opthalmic Branch & Superior Orbital Fissure
- Maxillary Branch & Foramen Rotundum
- Mandibular Branch & Foramen Ovale
-
Nerve #6 & Opening
- Abducens
- Superior Orbital Fissure
-
Nerve #7 & Opening
- Facial
- Internal Auditory Meatus/Stylomastoid Foramen
-
Nerve #8
Vestibulocochlear
-
Two Branches of Nerve #8 & Openings
- Vestibular Branch & Internal Auditory Meatus
- Cochlear Branch & Internal Auditory Meatus
-
Nerve #9 & Opening
- Glossopharyngeal
- Jugular Foramen
-
-
Nerve #11 & Opening
- Spinal Accessory
- Jugular Foramen
-
Nerve #12 & Opening
- Hypoglossal
- Hypoglossal Canal
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