Origins, Insertions, Actions Flashcards
Sternocleidomastoideus
O: manubrium and clavicle
I: mastoid
A: flexes neck
PECTORALIS MAJOR
O: RIB CARTILAGES, BODY OF STERNUM, CLAVICLE
I: GREATER TUBERCLE
A:flexes humerus
TRICEPS BRACHII
O: BELOW GLENOID, SUPERIOR, MEDIAL AND POSTERIOR HUMERUS
I: OLECRANON
A: EXTENDS FOREARM
BICEPS BRACHII
O: ABOVE GLENOID AND CORACOID PROCESS
I: RADIAL TUBEROSITY
ACTION: FLEXES FOREARM
TRAPEZIUS
O: OCCIPITAL, THORACIC VERTEBRAE, NECK LIGAMENTS
I: CLAVICLE, ACROMION AND SPINE OF SCAPULA
DELTOIDEUS
O: CLAVICLE, ACROMIAN, AND SPINE OF SCAPULA
I: DELTOID TUBEROSITY
A: ABDUCTS HUMERUS
TERES MAJOR
O: INFERIOR SCAPULA
I: LESSER TUBERCLE
A: ADDUCTS
GLUTEUS MAXIMUS
O: ILIAC CREST, SACRUM, COCCYX
I: LINEA ASPERA, ILIOTIBIAL TRACT
A: EXTENDS
BICEPS FEMORIS
O: ISCHIAL TUBEROSITY AND LINA ASPERA
I: HEAD OF FIBULA, LATERAL CONDYLE OF TIBIA
A: FLEXES LEG
SEMIMEMBRANOSUS
O: ISCHIAL TUBEROSITY
I: MEDIAL CONDYLE OF TIBIA
A: FLEXES LEG
SEMITENDINOSUS
O: ISCHIAL TUBEROSITY
I: PROXIMAL, MEDIAL TIBIA
A: FLEXES LEG
VASTUS LATERALIS
O: GREATER TROCHANTER, LINEA ASPERA
I: TIBIAL TUBEROSITY
A: EXTENDS LEG
VASTUS MEDIALIS
O: LINEA ASPERA
I: TIBIAL TUBEROSITY
A: EXTENDS LEG
RECTUS FEMORALIS
O: ANTERIOR INFERIOR ILIAC SPINE
I: TIBIAL TUBEROSITY
A: EXTENDS LEG
TIBIALIS ANTERIOR
O: LATERAL CONDYLE, PROXIMAL TIBIA
I: FIRST METATARSAL
A: DORSIFLEXES
