MOINA Flashcards
Coracobrachialis
O- coracoid process of scapula
I- midshaft of humerus
N-musculocutaneous nerve
A- adducts arm and flexes shoulder
deltoid
O- clavicle, acromion process, and scapular spine
I- deltoid tuberosity
N- axillary nerve
A- shoulder flexion and extension; arm abduction; arm rotation (medially and laterally)
supraspinatus
O- supraspinous fossa
I- greater tubercle of humerus
N- suprascapular nerve
A- assist deltoid muscle in abducting arm at shoulder joint
infraspinatus
O- infraspinous fossa
I- greater tubercle of humerus
N- suprascapular nerve
A- laterally rotates arm at shoulder joint
teres minor
O- inferior lateral border of scapula
I- greater tubercle of humerus
N- axillary
A- laterally rotates and extends arm at shoulder joint
subscapularis
O- subscapular fossa
I- lesser tubercle of hemerus
N- upper and lower subscapular nerve
A- medially rotates arm at shoulder joint
teres major
O- inferior angle of scapula
I- medial lip of intertubercular sulcus of humerus
N- lower subscapular nerve
A- arm extension at shoulder joint ; assist in adduction and medial rotation of arm at shoulder joint
trapezius
O- occipital bone ; ligamentum nuchae, and spines of c7-t12
I- clavicle, acromion, and spine of scapula
N- cranial nerve IX
A- upper fibers elevate the scapula; middle fibers pull scapula medially; lower fibers pull medial border of scapula downward
levator scapulae
O- transverse processes of c1-c4
I- medial birder of scapula
N- c3 and c4 and dorsal scapular nerve
A- raises medial border of scapula
rhomboid major
O- T2-T5
I- medial border of scapula
N- dorsal scapular nerve
A- raises medial border of scapula upward and medially
rhomboid minor
O- ligamentum nuchae and spines of c7-t1
I- medial border of scapula
N- dorsal scapular nerve
A- raises medial border of scapula upward and medially
brachialis
O- distal, anterior surface of humerus
I- coronoid process of ulna
N- musculocutaneous nerve
A- flexor of elbow joint
Biceps brachaii
O- supraglenoid tubercle of scapula ; coracoid process of scapula
I- tuberosity of radius and bicipital aponeurosis into deep fascia of forearm
N- musculocutaneous nerve
A- flexes forearm at elbow joint ; supinates forearm at radioulnar joint ; flexes arm at shoulder joint
triceps brachaii
O-infraglenoid tubercle of scapula ; upper half of posterior surface of shaft of humerus ; lower half of posterior surface of shaft of humerus
I- olecranon process of ulna
N- radial nerve
A- extensor or elbow joint
flexor carpi ulnaris
O- medial epicondyle of humerus ; superior and posterior border of ulna
I- pisiform ; hamate ; base of metacarpal V
N- ulnar nerve
A- flexes and adducts hand at wrist joint
flexor carpi radialis
O- medial epicondyle of humerus
I- metacarpals III and II
N- median nerve
A- flexes and abducts hand at wrist joint
extensor carpi radialis longus
O- lateral supracondylar ridge of humerus
I- metacarpal II
N- radial nerve
A- extends and abducts hand at wrist joint
extensor digitorium
O- lateral epicondyle of humerus
I- distal and middle phalanges of each finger
N- radial nerve
A- extends finger and hand
extensor carpi radialis brevis
O- lateral epicondyle of humerus
I- metacarpal III
N- radial nerve
A- extends and abducts hand at wrist joint
extensor carpi ulnaris
O- lateral epicondyle of humerus
I- metacarpal V
N- radial nerve
A- extends and adducts hand at wrist joint
pronator teres
O- medial epicondyle of humerus; coronoid process of ulna
I- lateral aspect of shaft of radius
N- median nerve
A- pronation and flexion of forearm
pronator quadratus
O- anterior distal portion of shaft of ulna
I- anterior distal portion of shaft of radius
N- median nerve
A- pronates forearm
palmaris longus
O- medial epicondyle of humerus
I- flexor retinaculum and palmar aponeurosis
N- median nerve
A- weakly flexes hand at wrist joint
flexor digitorium profundus
O- anteromedial surface of ulna
I- distal phalanges of medial 4 fingers
N- ulnar and median nerves
A- flexes distal phalanx of fingers ; then assists in flexion of middle and proximal phalanges and wrist
flexor digitorium superficialis
O- medial epicondyle of humerus; coronoid process of ulna ; anterior surface of radius
I- middle phalanx of each finger
N- median nerve
A- flexes middle phalanx of each finger at proximal interphalangeal joint, procimal phalanx of each finger at metacarpophalange jount, and hand and wrist joint
abductor pollicis brevis
O- flexor retinaculum, schapoid, trapezium
I- lateral side of proximal phalanx of the thumb
N- median nerve
A- abducts thumb at carpometacarpal joint
flexor pollicis brevis
O- flexor retinaculum
I- lateral side of proximal phalanx of the thumb
N- median and ulnar nerve
A- flexes thumb at carpometacarpal and metacarpophalangeal joints
opponens pollicis
O- flexor retinaculum and trapezium
I- lateral side of metacarpal I
N- median nerve
A- moves thumb across palm to meet any finger at carpometacarpal joint
abductor digiti minimi
O- pisiform
I- medial side of proximal phalanx of little finger
N- ulnar nerve
A- abducts little finger to mert thumb at carpometacarpal joint
lumbricals
O- tendons of flexor digitorium profundus
I- extensor expansion of medial four fingers
N- median and ulnar nerve
A- flexes distal phalanx each finger at metacarpophalangeal joints and extends each finger at interphalangeal joints
Palmar Interossei
O- side shafts of metacarpals of all digits (except 3)
I- sides of bases of proximal phalanges of all fingers (except III)
N- ulnar nerve
A- adducts fingers toward center of third finger
dorsal interossei
O-adjacent sides of metacarpals
I- proximal phalanx of fingers II-IV
N- ulnar nerve
A- abducts little finger fingers II-IV at metacarpophalangeal joints, flex fingers II-IV at metacarpophalangeal joints, and extends finger II-IV at interphalangeal joints
supinator
O- lateral epicondyle of humerus and ridge near radial notch of ulna
I- lateral surface of proximal one-third of radius
N- deep radial nerve
A- supinates forearm ar radio ulnar joints
gluteus maximus
O- outer surface of ilium, sacrum, coccyx, sacrotuberous ligament
I- iliotibial tract and gluteal tuberosity of femur
N- inferior gluteal nerve
A- extends and laterally rotates hip joint; through iliotibial tract, it extends knee joint
gluteus medius
O- ilium
I- greater trochanter of femur
N- superior gluteal nerve
A- abducts thigh at hip joint; tilts pelvis while walking
piriformis
O- anterior sacrum
I- greater trochanter of femur
N- sacral plexus
A- lateral rotator of the femur at hip joint
quadriceps femoris
O- femur
I- tibial tubercle
N- femoral nerve
A- extends leg at knee joint ; flexes thigh at hip joint
rectus femoris
O- anterior inferior iliac spine; ilium above acetabulum
I- quadriceps tendon into patella, then via ligamentum patella to tubercle of tibia
N- femoral nerve
A- extension of leg at knee joint ; flexion of thigh at hip joint
vastus lateralis
O- upper end and shaft of femur
I- quariceps tendon into patella, then via ligamentum patallae into tubercle of tibia
N- femoral nerve
A- extension of leg at knee joint
vastus medialis
O- anterior and kateral surfaces
of the body of femur
I-quadriceps tendon to patella then via ligamentum patella to tubercle of tibia
N-
A-
vastus intermedius
O- anterior and kateral surfaces
of the body of femur
I-quadriceps tendon to patella then via ligamentum patella to tubercle of tibia
N- femoral nerve
A- extension of leg at knee joint
sartorius
O- anterior superior iliac spine
I- upper medial surface of shaft of tibia
N- femoral nerve
A- flexes, abducts, laterally rotates thigh at hip joint; flexes and medially rotates leg at knee joint
adductor longus
O- body of pubis ; medial to pubic tubercle
I- posterior surface of shaft of femur
N- obturator nerve
A- adducts thigh at hip joint and assists in medial rotation
adductor brevis
O- inferior ramus of pubis
I- posterior surface of shaft of femur
N- obturator nerve
A- adducts thigh at hip joint
Gracilis
O- inferior pubic ramus and ramus of ischium
I- medial tibia
N- obturator nerve
A- adducts thigh at hip joint ; flexes leg at knee joint
adductor magnus
O- inferior pubic ramys; ramus of ischium ; ischial tuberosity
I- posterior surface of shaft of femur ; adductor tubercle of femur
N- obturator nerve A; sciatic nerve
A- adducts thigh at hip joint and assists in medial rotation ; extends thigh at hip joint
pectineus
O- superior ramus of pubis
I-upper end of linea aspera of shaft of femur
N- femoral nerve
A- flexes snd adducts thigh at hip joint
biceps femoris (2heads)
O- ischial tuberosity; linea aspera, lateral supracondylar ridge of shaft of femur
I- head of fibula
N- tibial portion of sciatic nerve; common fibular portion of sciatic nerve
A- flexes and laterally rotates leg at knee joint ; long head also extends thigh at hip joint
semitendinosus
O- ischial tuberosity
I- superior medial surface of shaft of tibia
N- tibial portion of sciatic nerve
A- flexes and medially rotates leg at knee joint; extends thigh at hip joint
fibularis tertius
O- anterior surface of shaft of fibula
I- extensor expansion of lateral four toes
N- deep fibular nerve
A- extends toes ; extends foot at ankle joint
fibularis brevis
O- lateral surface of shaft of fibula
I- base of fifth metatarsal bone
N- superficial fibular nerve
A- plantar flexes foot at ankle joint; everts foot at subtalar joint ; supports longitudinal arch of foot
soleous
O- shafts of tibia and fibula
I- via tendo calcaneus into posterior surface of calcaneum
N- tibial nerve
A- plantar flexor of ankle joint
tibialis posterior
O- posterior surface of shafts of tibia and fibula and interroseous membrane
I- tuberosity of navicular bone and other neighboring bones
N- tibial nerve
A- plantar flexor of foot; inversion of foot
popliteus
O- lateral surface of lateral condyle of femur
I- posterior surface of shaft of tibia above soleal line
N- tibial nerve
A- flexes leg at knee joint and medially rotates tibia to unlock the extended knee
gastroecnemius
O- lateral and medial condyles of femur and capsule of knee
I- via tendo calcaneus into posterior surface of calcaneum
N- tibial nerve
A- plantar flexes foot at ankle joint; flexes leg at knee joint
semimembranosus
O- ischial tuberosity
I- medial condyle of tibia
N- tibial portion of sciatic nerve
A- flexes and medially rotates leg at knee joint; extends thigh at hip joint
tibialis anterior
O- lateral surface of shaft of tibia and interosseous membrane
I- medial cuneiform and base of first metatarsal bone
N- deep fibular nerve
A- extends foot at ankle joint; inverts foot at subtalar and transverse tarsal joints ; holds up medial longitudinal arch of foot
fibularis longus
O- lateral surface of shaft of fibula
I- base of first metatarsal and the medial cuneiform
N- superficial fibular nerve
A- plantar flexes foot at ankle joint ; everts foot at subtalar and transverse tarsal joints; supports lateral longitudinal and transverse arches of foot
gluteus maximus
O- outer surface of ilium, sacrum, coccyx l, sacrotuberous ligament
I- iliotibial tract and gluteal tuberosity of femur
N- inferior gluteal nerve
A- extends laterally rotates hip joint ; through iliotibial tract, it extends knee joint
gluteus medius
O- outer surface of ilium
I- lateral surface of greater trochanter of femur
N- superior gluteal nerve
A- abducts thigh at hip joint; tilts pelvis when walking
gluteus minimus
O- outer surface of ilium
I- anterior surface of greater trochanter of femur
N- superior gluteal nerve
A- abducts thigh at hip joint ; tilts pelvis when walking
gluteus minimus
O- ilium
I- greater trochanter of femur
N- superior gluteal nerve
A- abducts thigh at hip joint; tilts pelvis while walking
Iliopsoas
Iliacus
O- iliac fossa of hip bone
I- with psoas into lesser trochanter of femur
N- femoral nerve
A- flexes thigh on trunk ; if thigh is fixed, it flexes the trunk on the thigh as in sitting up from lying down
Psoas
O- transverse process, bodies and intervertebral discs of the 12th thoracic and fice lumbar vertebrae
I- with iliacus into lesser trochanter of femur
N- lumbar plexus
A- flexes thigh on trunk; when thigh is fixed, it flexes the trunk on thigh as in sitting up from lying down
tensor fasciae latae
O- iliac crest
I- iliotibial tract
N- superior gluteal nerve
A- thigh flexion and abduction at hip joint
extensor carpi radialis brevis
O- lateral epicondyle of humerus
I- metacarpal III
N- radial nerve
A- extends and abducts hand at wrist joint
extensor carpi ulnaris
O- lateral epicondyle of humerus
I- metacarpal V
N- deep radial nerve
A- extends and adducts hand at wrist joint
