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Practical Anatomy

Muscles with their IOA's.

QuestionAnswer
O: Lateral one-third of clavicle, acromion and spine of scapula I: Deltoid tuberosity A: Abduct the shoulder, Flex the shoulder, Medially rotate, Horizontally adduct, Extend the shoulder, Laterally rotate, Horizontally abduct the shoulder Deltoid
O: External occipital protuberance, medial portion of superior nuchal line of the occiput, ligamentum nuchae and spinous process C-7 through T-12 I: Lateral one-third of clavicle, acromion and spine of scapula A:Extend head and neck Trapezius
O: Spinous processes of last 6 thoracic vert. Last 3 or 4 ribs, thoracolumbar aoineurosis and post iliac crest I: Crest of the lesser tubercle of humerus A: Extend, Adduct and medially rotate the shoulder Latissimus Dorsi
O: Lateral side of inferior angle and lower half of lateral border of the scapula I: Crest of the lesser tubercle of the humerus A:Extend, abduct adduct and medially rotate the shoulder Teres Major
O: Infraspinous fossa of the scapula I: Greater tubercle of the humerus A: Laterally rotate, adduct, extend, horizontally abduct the shoulder and stabilize the head of humerus in the glenoid cavity Infraspinatus
O: Superior half of lateral border of the sacpula I: Greater tubercle of the humerus A: Laterally rotate, Adduct, Extend, Horizontally abduct the shoulder and stabilize the head of humerus in glenoid cavity Teres Minor
O: Subcapular fossa of the scapula I: Lesser tubercle of the humerus A: Medially rotates the shoulder and stabilizes the head of humerus in glenoid cavity Subscapularis
O: Spinous processes C7-T5 I: Medial border of the scapula A: Adduct, Elevate and Downwardly rotate the scapula Rhomboids
O: Transverse processes of 1st through 4th cervical vertebrae I: Upper region of the medial border and superior angle of the scapula A: Elevates & downwardly rotates the scapula, Laterally flex the head and neck, Rotates the head and neck to the same side Levator Scapula
O: Surfaces of the upper 8 or 9 ribs I: Anterior surface of medial border of the scapula A: Abducts & Depresses the scapula, Holds the medial border of the scapula against the rib cage Serratus Anterior
O: Medial half of clavicle, sternum and cartilage of 1st through 6th ribs I: Crest of greater tubercle of the humerus A: Adducts, Medial rotates the shoulder;UF: Flex and horizontally adducts the shoulder; LF: Extend the shoulder Pectoralis Major
O: 3rd, 4th and 5th ribs I: Coracoid process of the scapula A: Depress & Abduct the shoulder, Tilts the shoulder anteriorly Pectoralis Minor
O: Coracoid process of the scapula; Supraglenoid tubercle of the scapula I: Tuberosity of the radius and aponeurosis A: Flex elbow, Supinate the forearm, Flex the shoulder Biceps Brachii
O: Infraglenoid tubercle of the scapula; Posterior surface of proximal half of the humerus; Posterior surface of distal half of the humerus I: Olecranon process of the ulna A: Extend the elbow; extend & adduct the shoulder Triceps Brachii
O: Common extensor tendon from the lateral epicondyle of the humerus I: Middle and distal phalanges of 2nd through 5th fingers A: Extend the 2nd through 5th fingers, Assists to extend the wrist Extensor Digitorum
O: Common flexor tendon from medial epicondyle I: Bases of 2nd and 3rd metacarpals A: Flex the wrist, Abduct the wrist, Flex the elbow Flexor Carpi Radialis
O: Spinous processes of the upper lumbar and lower thoracis, Ligamentum nuchae, spinous process C-7 I: Spinous processes of upper thoracic & cervicals, except C-1 A: Laterally flex and Extend vertebral column Spinalis
O: Posterior iliac crest I: Last rib and transverse processes of 1st through 4th lumbar A: Laterally tilt the pelvis, laterally flex the vertebral column to the same side, Assist to extend the vertebral column Quadratus Lumborum
O: Pubic crest, Public symphysis I: Cartilage of 5th, 6th and 7th ribs and Xiphoid process A: Flex the vertebral column Rectus Abdominis
O: Top of manubrium; Medial one-third of the clavicle I: Mastoid process of temporal bone and the lateral portion of superior nuchal line of occiput A: Laterally flex the head & neck to the same side, rotate the head & neck to the opposite side, Flex neck Sternocleidmastoid
O: Zygomatic arch I: Angle and ramus of mandible A: Elevate the mandible Masseter
O: Temporal fossa and fascia I: Coronoid process of the mandible A: Elevate the mandible, Retract the mandible Temporalis
O: Anterior inferior iliac crest (AIIS) I: Tibial tuberosity A: Extends the knee, Flex the hip Rectus Femorus
O: Medial lip of linea aspera I: Tibial tuberosity A: Extends the knee Vastus Medialis
O: Lateral lip of linea aspera, gluteal tuberosity I: Tibial tuberosity A: Extends the knee Vastus Lateralis
O: Ischial tuberosity; lateral lip of linea aspera I: Head of the fibula A:Flex the knee, laterally rotate the flexed knee, extend the hop, laterally rotate the hip, tilt the pelvis posteriorly Biceps Femoris
O: Ischial tuberosity I: Posterior aspect of medial condyle :Flex the knee, medially rotate the flexed knee, extend the hop, medially rotate the hip, tilt the pelvis posteriorly Semimembranosus
Coccyx, edge of sacrum, posterior iliac crest, sacrotuberous and sacroiliac ligaments I: Gluteal tuberosity, Iliotibial tract A: Extend the hip, laterally rotates the hip, abducts the hips; adducts the hip Gluteus Maximus
O: iliac crest; posterior to the ASIS I: Iliotibial tract A: Flex the hip, Medially rotates the hip, abduct the hip Tensor Fasciae Latae
O: Gluteal Fascia I: Tibial tuberosity A: Stabilize the hip and knee Iliotibial Tract
O: Anterior surface of the sacrum I: Greater trochanter A: Laterally rotates the hip, Abduct the hip when the hip is flexed Piriformis
O: Condyles of the femur, posterior surfaces I: Calcaneus via calcaneal tendon A: Flex the knee, Plantar flex the ankle Gastrocnemius
O: Soleal line, posterior surface of tibia and proximal, posterior surface of fibula I: Calcaneus via calcaneal tendon A: Plantar flex the ankle Soleus
O: Proximal lateral surface of tibia and interosseous membrane I: Medial cuneiforn and base of the 1st metatarsal A: Invert the foot, Dorsiflex the ankle Tibialis Anterior
O: Supraspinous fossa of the scapula I: Greater tubercle of the humerus A: Abduct the shoulder, Stabilize head of the humerus in the glenoid cavity Supraspinatus
O: Coracoid process of the scapula I: Medial surface of the mid-humeral shaft A: Flex the shoulder, Adduct the shoulder Coracobrachialis
O: Distal halk of anterior surface of the humerus I:Tuberosity and coronoid process of the ulna A: Flex the elbow Brachialis
O:Lateral supracondylar ridge of humerus I: Base of the 2nd metacarpal A: Extends the wrist, Abduct the wrist, Assist to flex the elbow Extensor Carpi Radialis Longus
O: Common extensor tendon from the lateral epicondyle of humerus I: Base of the 5th metacarpal A: Extend the wrist, Adduct the wrist Extensor Carpi Ulnaris
O: Lateral supracondylar ridge of humerus I: Styloid process of the radius A: Flex the elbow, Assist to pronate and supinate the forearm when these movements are resisted Brachioradialis
O: Common flexor tendon from medial epicondyle I: Flexor retinaculum and palmar aponeurosis Palmaris Longus
O: Common flexor tendon from medial epicondyle of humerus, ulnar collateral ligament, coronoid process of ulna and shaft of radius I: By 4 tendons into side of mid phalanges of 2nd-5th fingers A: Flex 2nd-5th fingers, flex wrist Flexor Digitorum Superficialis
O:Transverse processes of 3rd-6th, 2nd-7th, 5th-6th cervical vertebrae I: 1st rib, 1st rib, 2nd rib A: With ribs fixed, laterally flex the head and neck to the same side, rotate head and neck to the opposite side,elevate the ribs,(Anterior)flex head/neck Scalenes
O: Common tendon (thoracis) Transverse processes of upper 5 thoracis I: Lower 9 ribs and transverse processes of thoracis, Transverse processes of cerviciis, mastoid process of temporal bone A: Laterally flex vert column to same side, extend vert column Longissimus
O: Common tendon, Posterior surface of ribs 1-12 I: Ttransverse processes L1-L3 and posterior surface of ribs 6-12, posterior surface of ribs 1-6, transverse process of lower cervicals A: Laterally flex vert column to same side, extend vert column Iliocostalis
O: Inferior border of the rib above I: Superior border of the rib below A: Assit with inhalation by drawing the ribs inferiorly, increasing cavity space; Assist with exhalation by drawing the ribs inferiorly, decreasing cavity space Intercostals
O: Ligamentum nuchae, spinous processes of C7 to T3 I: Mastoid process and lateral portion of superior nuchal line A:Rotate the head and neck to the same side, laterally flex the head and neck, extend the head and neck Splenius Capitis
O: Gluteal surface of the ilium between the anterior and inferior gluteal lines I: Anterior border of greater trochanter A: Abduct the hip, medially rotate the hip, Flex the hip Gluteus Minimus
O: Gluteal surface of the ilium between the iliac crest and the posterior and anterior gluteal lines I: Greater trochanter A: Abduct, Flex, Medially rotates the hip, Extends, Laterally rotates the hip Gluteus Medius
O: Ischal tuberosity I: Proximal, medial shaft of the tibia at pes anserinus tendon A: Flex the knee, Medially rotate the flexed knee, Extend the hip, Medially rotate the hip, tilt the pelvis posteriorly Semitendinosus
O: Inferior ramus of the pubis, ramus of ischium and ischial tuberosity I: Medial lip of linea aspera and adductor tubercle A: Adduct the hip, medially rotate the hip, Assist to flex the hip; extend the hip Adductor Magus
O: Pubic tubercle I: Medial lip of linea aspera A: Adduct the hip, medially rotate the hip, Assist to flex the hip Adductor Longus
O: Bodies and transverse processes of lumbar vertebrae I: Lesser trochanter A: Flex the hip, Laterally rotate the hip, Adduct the hip Psoas Major
O:Iliac fossa I: Lesser trochanter A: Flex the hip, Laterally rotate the hip, Adduct the hip Iliacus
O: Proximal 2/3 of lateral fibula I: Base of the 1st metatarsal and medial cuneiform A: Evert the foot, assist to plantar flex the ankle Peroneus Longus
O: Distal 2/3 of lateral fibula I: Tuberosity of 5th metatarsal a: Evert the foot, Assist to plantar flex the ankle Peroneus Brevis
O:Proximal anterior shaft of fibula and interosseous membrane I: Middle and distal phalanges of 2nd through 5th toes A: Extend the 2nd through 5th toes, dorsiflex the ankle, evert the foot Extensor Digitorum Longus
O: Calcaneus I: Middle phalanges of 2nd through 5th toes A: Flex middle phalanges of the 2nd through 5th toes Flexor Digitorum Brevis
Created by: kitsu