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Anatomy Test 2-Muscle Charts
Origins, Insertions, Actions, Innervation
274
Anatomy
Undergraduate 2
11/11/2011

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Term
Where does the psoas major originate?
Definition
Bodies and transverse process of lumbar vertebrae
Term
Where does the psoas major insert?
Definition
lesser trochanter of the femur
Term
What innervates the psoas major?
Definition
lumbar ventral rami
Term
What is the psoas major's action?
Definition
flexes thigh
Term
Where does the illiacus originate?
Definition
illiac fossa
Term
Where does the illiacus insert?
Definition
Lesser trochanter of the femur
Term
What innervates the illiacus?
Definition
femoral nerve
Term
What is the action of the illiacus?
Definition
flexes thigh
Term
What is the origin of the gluteus maximus?
Definition
posterior sacrum, sacrotuberous ligament, and coccyx
Term
What is the insertion of the gluteus maximus?
Definition
Illiotibial tract, gluteal tuberosity
Term
What is the action of the gluteus maximus?
Definition
extends thigh, assists in lateral rotation of thigh
Term
What is the innervation of the gluteas maximus
Definition
inferior gluteal nerve
Term
What is the origin of the tensor fascae latte
Definition
illiac crest, anterior superior illiac spine
Term
What is the insertion of the tensor fascae latte?
Definition
illiotibial tract
Term
What is the innervation of the tensor fascae latte?
Definition
superior gluteal nerve
Term
What is the origin of the gluteas medius?
Definition
Lateral surface of illium
Term
What is the insertion of the gluteas medius?
Definition
lateral surface of greater trochanter
Term
What is the innervation of the gluteas medius?
Definition
superior gluteal nerve
Term
What is the action of the gluteas medius?
Definition
abducts thigh
Term
What is the action of the tensor fasciae latte?
Definition
abduct and flex thigh
Term
What is the origin of the gluteus minimus?
Definition
lateral surface of ilium (inferior to gluteus medius)
Term
What is the insertion of the gluteus minimus?
Definition
anterior surface of greater trochanter
Term
What is the action of the gluteus minimus?
Definition
abducts and medially rotates thigh
Term
What is the innervation of the gluteus minimus?
Definition
superior gluteal nerve
Term
What is the origin of the rectus femoris?
Definition
anterior inferior illiac spine
Term
What is the insertion of the rectus femoris?
Definition
tibial tuberosity via patellar tendon
Term
What is the action of the rectus femoris?
Definition
extend leg, flex thigh
Term
What is the innervation of the rectus femoris?
Definition
femoral nerve
Term
What is the origin of the vastus lateralis?
Definition
lateral margin of linea aspera and greater trochanter
Term
What is the insertion of the vastus lateralis?
Definition
tibial tuberosity via patellar tendon
Term
What is the action of the vastus lateralis?
Definition
extands leg
Term
What is the innervation of the vastus lateralis?
Definition
femoral nerve
Term
What is the origin of the vastus intermedius?
Definition
anterior and lateral surfaces of femur
Term
Waht is the insertion of the vastus intermedius?
Definition
tibial tuberosity via patellar tendon
Term
What is the action of the vastus intermedius?
Definition
extends leg
Term
What is the innervation of the vastus intermedius?
Definition
femoral nerve
Term
What is the origin of the vastus medialis?
Definition
medial marigin of linea aspera
Term
What is the insertion of the vastus medialis?
Definition
tibial tuberosity via patellar tendon
Term
What is the action of the vastus medialis?
Definition
extend leg
Term
What is the innervation of the vastus medialis?
Definition
femoral nerve
Term
What is the origin of the sartorius?
Definition
anterior superior illiac spine
Term
What is the insertion of the sartorius?
Definition
medial surface of proximal tibia
Term
What is the action of the sartorius?
Definition
Extend leg, flex thigh, laterally rotate thigh
Term
What is the innervation of the sartorius?
Definition
femoral nerve
Term
What is the origin of the piriformis?
Definition
anterior surface of sacrum
Term
What is the insertion of the piriformis?
Definition
greater trochanter
Term
What is the action of the piriformis?
Definition
laterally rotates thigh
Term
What is the innervation of the piriformis?
Definition
nerve to piriformis
Term
What is th origin of the semitendonosus?
Definition
ischial tuberosity
Term
What is the insertion of the semitendinosus?
Definition
medial surface of proximal tibia
Term
What is the action of the semitendinosus
Definition
extend thigh, flex leg
Term
What is the innervation of the semitendinosus?
Definition
tibial nerve
Term
What is the origin of the semimembranosus?
Definition
ischial tuberosity
Term
What is the insertion of the semimembranosus?
Definition
posterior surface of medial condyle of tibia
Term
What is the action of the semimembranosus?
Definition
extends thigh and flexes leg
Term
What is the innervation of the semimembranosus?
Definition
tibial nerve
Term
What is the origin of the biceps femoris long head?
Definition
ischial tuberosity
Term
What is the origin of the biceps femoris short head?
Definition
linea aspera
Term
What is the insertion of the bicpes femoris?
Definition
head of fibula
Term
What is the action of the biceps femoris?
Definition
extends thigh, flexes leg
Term
What is the innervation of the biceps femoris?
Definition
long head - tibial nerve
short head - common fibular nerve
Term
Origin of the pectineus?
Definition
superior pubic ramus
Term
Insertion of the pectineus
Definition
posterior femur just distal to lesser trochanter
Term
Action of the pectineus?
Definition
adducts and flexes thigh
Term
Innervation of the pectineus?
Definition
obturator nerve and femoral nerve
Term
Origin of the adductor longus?
Definition
anterior pubis near symphysis (proximal to adductor brevis)
Term
Insertion of the adductor longus?
Definition
linea aspera (distal to adductor brevis)
Term
Action of adductor longus?
Definition
adducts thigh
Term
Innervation of adductor longus?
Definition
obturator nerve
Term
Origin of adductor brevis?
Definition
anterior pubis and inferior pubic ramus
Term
Insertion of adductor brevis?
Definition
linea aspera (proximal to adductor longus)
Term
Action of adductor brevis?
Definition
adducts thigh
Term
Innervation of the adductor brevis?
Definition
obturator nerve
Term
Origin of the gracilis?
Definition
Inferior pubic ramus near symphysis
Term
Insertion of gracilis?
Definition
medial surface of proximal tibia
Term
Action of gracilis?
Definition
adducts the thigh, flexes leg
Term
Innervation of the gracilis?
Definition
obturator nerve
Term
Origin of adductor magnus?
Definition
inferior pubic ramus, ischial ramus, and ischial tuberosity
Term
Insertion of the adductor magnus?
Definition
linea aspera and adductor tubercle
Term
Action of adductor magnus?
Definition
adducts and extends thigh
Term
Innervation of the adductor magnus
Definition
obturator nerve and tibial nerve
Term
Origin of the gastroecnemius?
Definition
posterior surface of medial and lateral epicondyles of the femur
Term
Insertion of the gastroecnemius?
Definition
posterior of calcaneus via achilles tendon
Term
Action of gastroecnemius?
Definition
plantar flees foot, flexes leg
Term
Innervation of gastroecnemius?
Definition
tibial nerve
Term
Origin of plantaris?
Definition
posterior surface of femur proximal to lateral epicondyle
Term
Insertion of plantaris?
Definition
posterior calcaneus via achilles tendon
Term
Action of plantaris?
Definition
plantar flexes, flexes leg
Term
Innervation of plantaris?
Definition
tibial nerve
Term
Origin of soleus?
Definition
posterior surface of proximal tibia and fibula
Term
Insertion of soleus?
Definition
posterior calcaneus via achilles tendon
Term
Action of soleus?
Definition
plantar flexes foot
Term
Innervation of soleus?
Definition
tibial nerve
Term
Origin of Flexor hallucis longus?
Definition
posterior surface of distal fibula
Term
Insertion of flexor hallucis longus?
Definition
distal phalanx of big toe
Term
Action of flexor hallicus longus?
Definition
flexes big toe, plantar flexes foot
Term
Innervation of flexor hallicus longus?
Definition
tibial nerve
Term
Origin of flexor digitorum longus?
Definition
posterior surface of middle tibia
Term
Insertion of flexor digitorum longus?
Definition
distal phalanges of toes 2-5
Term
Action of flexor digitorum longus?
Definition
flexes toes 2-5; plantar flexes foot
Term
Innervation of flexor digitorum longus?
Definition
tibial nerve
Term
Origin of tibialis posterior?
Definition
posterior surface of tibia, fibula, and interosseus membrane
Term
Insertion of tibialis posterior?
Definition
Navicular, cuneiforms and metatarsals 2-4
Term
Action of tibialis posterior?
Definition
plantar flexes foot, inverts foot
Term
Innervation of tibialis posterior
Definition
Term
Origin of fibularis longus?
Definition
lateral surface of proximal fibula
Term
Insertion of fibularis longus?
Definition
metatarsal 1 and medial cuneiform
Term
Action of fibularis longus?
Definition
everts and plantar flexes foot
Term
Innervation of fibularis longus
Definition
common fibular nerve
Term
Origin of fibularis brevis?
Definition
Lateral surface of distal fibula
Term
Insertion of fibularis brevis?
Definition
dorsal surface of metatarsal 5
Term
Action of fibularis brevis?
Definition
everts and plantar flexes foot
Term
Innervation of fibularis brevis?
Definition
common fibular nerve
Term
Origin of tibialis anterior?
Definition
lateral surface of proximal tibia
Term
Insertion of tibialis anterior?
Definition
metatarsal 1 and medial cuneiform
Term
Action of tibialis anterior
Definition
dorsaflexes and inverts foot
Term
Innervation of tibialis anterior?
Definition
common fibular nerve
Term
Origin extensor hallicus longus?
Definition
anterior surface of middle fibula and and interosseus membrane
Term
Action of extensor hallucis longus?
Definition
extends big toe and dorsiflexes foot
Term
Innervation of extensor hallicus longus
Definition
common fibular nerve
Term
Origin of extensor digitorum longus?
Definition
anterior surface of proximal fibula and interosseus membrane
Term
Insertion of extensor digitorum longus?
Definition
distal phalanges of toes 2-5
Term
Action of extensor digitorum longus?
Definition
Extends toes 2-5 and dorsiflexes foot
Term
Innervation of flexor digitorum longus?
Definition
Common fibula nerve
Term
Origin of fibularis tertius?
Definition
anterior surface of distal fibula
Term
Insertion of fibularis tertius?
Definition
dorsal surface of metatarsal 5
Term
Action of fibularis tertius?
Definition
dorisflexes and everts foot
Term
Innervation of fibularis tertius?
Definition
common fibular nerve
Term
Origin of sternocleidomastoid?
Definition
manubrium of sternum and medial clavicle
Term
Insertion of sternocleidomastoid?
Definition
Mastoid process of skull
Term
Action of sternocleidomastoid?
Definition
Laterally and and bilaterally flexes head and neck
Term
Innervation of sternocleidomastoid?
Definition
Accessory nerve
Term
Origin of trapezius?
Definition
occipital bone and spinous processes of cervical and thoracic vertebrae
Term
Insertion of trapezius?
Definition
acromion process, spine of scapula, and lateral clavicle
Term
Action of trapezius?
Definition
Superior fibers-elevates scapula

Middle fibers-retracts scapula

Inferior fibers-depresses scapula
Term
Innervation of trapezius?
Definition
accessory nerve
Term
Origin of serratus anterior?
Definition
outer surfaces of rib
Term
Insertion of serratus anterior?
Definition
medial border of scapula
Term
Action of serratus anterior?
Definition
protracts and depresses scapula
Term
Innervation of serratus anterior?
Definition
brachial plexus
Term
Origin of rhomboideus?
Definition
spinous processes of vertebrae C7-T5
Term
Origin of rhomboideus?
Definition
spinous processes of vertebrae C7-T5
Term
Insertion of rhomboideus?
Definition
medial border of scapula
Term
Action of rhomboideus?
Definition
elevates and retracts scapula
Term
Innervation of rhomboideus?
Definition
brachial plexus
Term
Origin of levator scapulae?
Definition
transverse processes of vertebrae C1-C4
Term
Insertion of levator scapulae?
Definition
medial border of scapula
Term
Action of levator scapulae?
Definition
elevates scapula
Term
Innervation of levator scapulae?
Definition
brachial plexus
Term
Origin of latissimus dorsi?
Definition
spinous processes of thoracic, lumbar, and sacral vertebrae, illiac crest and lower ribs
Term
Insertion of latissimus dorsi?
Definition
crest of lower tubercle and intertubercular groove
Term
Action of latissimus dorsi?
Definition
extends, adducts, medially rotates humerus
Term
Innervation of latissimus dorsi?
Definition
brachial plexus
Term
Origin of teres major?
Definition
lateral border of scapula
Term
Insertion of teres major?
Definition
Crest of lesser tubercle
Term
Action of teres major?
Definition
extends, adducts, medially rotates humerus
Term
Innervation of teres major?
Definition
brachial plexus
Term
Origin of subscapularis?
Definition
subscapular fossa
Term
insertion of subscapularis
Definition
lesser tubercle
Term
Action of subscapularis?
Definition
adduct and medially rotates humerus
Term
innervation of subscapularis?
Definition
brachial plexus
Term
Origin of deltoideus?
Definition
acromion process, spine of scapula, lateral clavicle
Term
Insertion of deltoideus?
Definition
deltoid tuberosity
Term
Action of deltoideus?
Definition
abducts, flexes, extends, medially rotates, laterally rotates humerus
Term
Innervation of deltoideus?
Definition
axillary nerve
Term
Origin of teres minor?
Definition
lateral border of scapula
Term
Insertion of teres minor?
Definition
posterior greater tubercle
Term
Action of teres minor?
Definition
laterally rotates humerus
Term
Innervation of teres minor?
Definition
axillary nerve
Term
Origin of pectoralis major?
Definition
sternum, costal cartilages, and medial clavicle
Term
Insertion of pectoralis major?
Definition
crest of greater tubercle
Term
Action of pectoralis major?
Definition
adducts and medially rotates and flexes humerus
Term
Innervation of pectoralis major?
Definition
brachial plexus
Term
Origin of pectoralis minor?
Definition
ribs 3-5
Term
Insertion of pectoralis minor?
Definition
coracoid process
Term
Action of pectoralis minor?
Definition
depresses and protracts scapula
Term
Innervation of pectoralis minor?
Definition
brachial plexus
Term
origin of supraspinatus?
Definition
supraspinous fossa
Term
Insertion of supraspinatus?
Definition
superior greater tubercle
Term
Action of supraspinatus?
Definition
abducts humerus
Term
Innervation of supraspinatus?
Definition
brachial plexus
Term
Origin of infraspinatus?
Definition
infraspinatus fossa
Term
Insertion of infraspinatus?
Definition
posterior greater tubercle
Term
Action of infraspinatus
Definition
laterally rotates humerus
Term
Innervation of infraspinatus?
Definition
Term
Origin of triceps brachii?
Definition
long head- inferior glenoid tubercle

medial and lateral head- posterior surface of humerus
Term
Insertion of triceps brachii?
Definition
olecronon process
Term
Action of triceps brachii?
Definition
extends forearm
Term
Innervation of triceps brachii?
Definition
radial nerve
Term
Origin of coracobrachialis?
Definition
coracoid process
Term
insertion of coracobrachialis?
Definition
medial surface of humerus
Term
Action of coracobrachialis?
Definition
adducts and flexes humerus
Term
Innervation of coracobrachialis?
Definition
musculocutaneus nerve
Term
Origin of brachialis?
Definition
anterior surface of humerus
Term
insertion of brachialis?
Definition
coronoid process and ulnar tuberosity
Term
Action of brachialis?
Definition
flexes forearm
Term
Innervation of brachialis
Definition
musculocutaneus nerve
Term
origin of biceps brachii
Definition
long head- superior glenoid tubercle

Short head- coracoid process
Term
insertion of biceps brachii
Definition
radial tuberosity
Term
Action of biceps brachii
Definition
flexes arm and supinates hand
Term
innervation of biceps brachii
Definition
musculotaneus nerve
Term
Origin of pronator teres?
Definition
medial epicondyle of humerus
Term
Insertion of pronator teres?
Definition
lateral radius
Term
ACtion of pronator teres?
Definition
pronates hand
Term
Innervation of pronator teres
Definition
median nerve
Term
Origin of flexor carpi radialis?
Definition
medial epicondyle of humerus
Term
Insertion of flexor carpi radialis?
Definition
base of metacarpals 2 and 3
Term
Action of flexor carpi radialis?
Definition
flexes and abducts hand
Term
Innervation of flexor carpi radialis?
Definition
median nerve
Term
Origin of palmaris longus
Definition
medial epicondyle of humerus
Term
Insertion of palmaris longus?
Definition
palmar aponeurosis
Term
Action of palmaris longus?
Definition
flexes hand
Term
Innervation of palmaris longus
Definition
median nerve
Term
Origin of flexor carpi ulnaris
Definition
medial epicondyle of humerus
Term
insertion of flexor carpi ulanris?
Definition
base of metacarpal 5, hamate, and pisiform
Term
Action of flexor carpi ulnaris
Definition
flexes and adducts hand
Term
Innervation of flexor carpi ulnaris
Definition
ulnar nerve
Term
Origin of flexor digitorum superficialis
Definition
medial epicondyle of humerus
Term
Origin of flexor digitorum superficialis
Definition
medial epicondyle of humerus
Term
Insertion of flexor digitorum superficialis?
Definition
middle phalanges of fingers 2-5
Term
Action of flexor digitorum superficialis?
Definition
flexes hand and fingers
Term
Innervation of flexor digitorum superficialis
Definition
median nerve
Term
origin of flexor digitorum profundus
Definition
anterior ulna and interossues membrane
Term
Insertion of flexor digitorum profundus
Definition
distal phalanges of fingers 2-5
Term
Action of flexor digitorum profundus?
Definition
flexes hand and fingers
Term
Innervation of flexor digitorum profundus?
Definition
median nerve and ulnar nerve
Term
Origin of flexor pollicis longus
Definition
anterior radius and interosseous membrane
Term
Insertion of flexor pollicis longus
Definition
distal phalanx of thumb
Term
Action of flexor pollicis longus
Definition
flexes thumb
Term
Innervation of flexor pollicis longus
Definition
median nerve
Term
Origin of pronator quadtratus?
Definition
distal ulna
Term
Insertion of pronator quadratus?
Definition
distal radius
Term
Action of pronator quadratus
Definition
pronates hand
Term
Innervation of pronator quadratus
Definition
median nerve
Term
Origin of brachioradialis?
Definition
lateral supracondylar crest of humerus
Term
Insertion of brachioradialis?
Definition
styloid process of humerus
Term
Action of brachioradialis
Definition
flexes forearm
Term
Innervation of brachioradialis?
Definition
radial n
Term
Origin of extensor carpi radialis longus
Definition
lateral supracondylar crest, and lateral epicondyle of humerus
Term
Insertion of extensor carpi radialis longus?
Definition
base of metacarpal 2
Term
Action of extensor carpi radialis longus
Definition
extends and abducts hand
Term
Innervation of extensor carpi radialis longus
Definition
radial n
Term
Origin of extensor carpi radialis brevis
Definition
lateral epicondyle of humerus
Term
Insertion of extensor carpi radialis brevis
Definition
base of metacarpal 3
Term
Action of extensor carpi radialis brevis
Definition
extends hand
Term
Innervation of extensor carpi radilias brevis
Definition
radial n
Term
Origin of extensor digitorum
Definition
lateral epicondyle of the humerus
Term
Insertion of extensor digitorum
Definition
distal phalanges of fingers 2-5
Term
Action of extensor digitorum
Definition
extends fingers and hand
Term
Innervation of extensor digitorum
Definition
radial n
Term
Origin of extensor digiti minimi
Definition
lateral epicondyle of humerus
Term
Insertion of extensor digiti minimi
Definition
distal phalanx of finger 5
Term
Action of extensor digiti minimi?
Definition
extends finger 5
Term
Innervation of extensor digiti minimi
Definition
radial
Term
Origin of extensor carpi ulnaris
Definition
lateral epicondyle of humerus and posterior ulna
Term
Insertion of extensor carpi ulnaris
Definition
bsae of metacarpal 5
Term
Action of extensor carpi ulnaris
Definition
extends and adducts hand
Term
Innervation of extensor carpi ulnaris
Definition
radial n
Term
Origin of abductor pollicis longus
Definition
posterior radius, ulna, and interosseus membrane
Term
Insertion of abductor pollicis longus
Definition
base of metacarpal 1
Term
Action of abductor pollicis longus?
Definition
abducts and extends thumb
Term
Innervation of abductor pollicis longus
Definition
radial n
Term
Origin of extensor pollicis brevis
Definition
posterior radius and interosseus membrane
Term
Insertion of extensor pollicis brevis
Definition
proximal phalanx of thumb
Term
Action of extensor pollicis brevis
Definition
extends thumb and abducts hand
Term
Innervation of extensor pollicis brevis
Definition
radial nerve
Term
Origin of extensor pollicis longus
Definition
posterior ulna and interosseus membrane
Term
Insertion of extensor pollicis longus
Definition
distal phalanx of thumb
Term
ACtion of extensor pollicis longus
Definition
extends thumb and abducts hand
Term
innervation of extensor pollicis longus
Definition
radial n
Term
Origin of extensor indicis
Definition
posterior ulna and interossues membrane
Term
Insertion of extensor indicis
Definition
posterior surface of index finger
Term
ACtion of extensor indicis
Definition
extends index finger
Term
Innervation of extensor indicis
Definition
radial n
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