Ortho tx mid term Flashcards
Supraspitatus
O: Supraspinous fossa of scapula I: Greater Tubercle (sup facet) A: Abduction of humerus N: Suprascapular nerve AA: Suprascapular artery
Deltoids
O: Anterior Clavicle - lateral 1/3, Middle Acromion, Posterior Spine of scapula
I: Deltoid tuberosity of humerus
A: Abduction, Flexion, medial rotation, horizontal adduction, extension lateral rotation and horizontal abduction
N: Axillary nerve
AA: Circumflex humerus
Bicept brachii
O: Long head Supraglenoid tubercle, Short head Coracoid process
I: Radial tuberosity and bicipital aponeurosis
A: Flexion of the arm at GH jt, flexion of forearm at elbow jt, Supinates forearm at radioulnar jt
N: Musculo cutaneous nerve
AA: Brachial artery
Triceps Brachii
O: Long head infraglenoid tubercle Lateral head proximal 1/2 of humeral shaft, Medial head, Distal 1/2 humeral shaft
I: All 3 insert onto the olecrenon process of ulna
A: Extends the elbow jt. Long head will extend arm at GH jt
Brachioradialis
O: Lateral supracondylar ridge of humerus
I: Styloid process of radius
A: Flexes elbow in neutral position, brings the forearm to neutral position (pronates when supinated, Supinates when pronated)
N Radial nerve
AA: Brachial and radial artery
Flexor carpi ulnaris
O: Medial epicondyle via CFT and prox ulna
I: Pisiform, hook of hamate, and 5th metacarpal
A: Flexes hand at wrist joint and ulnar diviation, flexes elbow jt
N: Ulnar nerve
AA: Ulnar artery
Abductor Pollicis Longus
O: Middle 1/3 of posterior ulna, radius and interosseus membrane
I: Posterior base of metacarpal #1
A: Abducts the thumb at CMC jt (anteriorly. Superior movement is extension)
N: Radial nerve
AA: Posterior interosseus
Pectoralis Major
O: Clavicular head - medial 1/2 of clavicle
Sternal head: sternum and costal cartilages #1-#7
I: Lateral lip of the bicipital groove
A: Flexion, adduction and medial rotation of the arm at shoulder jt
Horizontal adduction of arm at shoulder jt
N: Medial and lateral pectral nerve
AA: Thracoacromial artery branch of the axillary
Quadratus Lumborum
O: Posterior portion of iliac crest
I: 12th rib and TPs of L1-L4
A: Extension and lateral flexion of the trunk at the spinal joint, anteriorly tilts pelvis, elevates pelvis at lumbosacral joint
N: Lumbar plexus
AA: Subcostal and lumbar arteries and iliolumbar
Rectus femoris
O: AIIS
I: Tibial tuberosity via Patellar ligament
A: Flexion of thigh at hip jt, extension of leg at knee jt, anterior pelvic tilt
N: Femoral nerve
AA: Femoral artery and deep femoral artery
Vastus lateralis
O: Linea aspera lateral lip
I: Tibial tuberosity via Patellar ligament
A: Extension of leg at knee joint (some external knee rotation)
N: Femoral nerve
AA: Femoral artery and deep femoral artery
Biceps Femoris
O: Long head Ischial tuberosity, Short head Linea aspera
I: Head of fibula and lateral tibial condyle
A: Flexion of leg at knee joint
Long head only extension of thigh at hip joint
Posterior pelvic tilt
N: Sciatic nerve (Tibial)
AA: Inferior gluteal, obturator and deep femoral arteries
Gastrocnemius
O: Posterior aspects of distal medial and lateral condyles of the femur
I: Calcaneous via Achilles’ tendon
A: Plantar flexion of foot at ankle joint
Flexion of leg at knee joint
N: Tibial nerve
AA: Popliteal artery
Soleus
O: Soleal line of tibia head and proximal 1/3 of fibula I: Calcaneous via Achilles Tendon A: Plantar flexion of foot @ ankle joint N: Tibial nerve AA: Popliteal artery
Tibialis Anterior
O: Proximal anterior tibia (lateral tibial condyle and proximal 2/3 interosseous membrane and tibia)
I: Dorsal part of 1st cuneiform and 1st metatarsal
A; Dorsiflexes and inverts foot
N: deep fibular nerve
AA: Anterior tibial artery
Fibularis Tertius
O: Distal anterior fibula (distal 1/3 of fibula and interosseous membrane I: Dorsal surface of 5th metatarsal only A: Dorsiflexes foot, everts foot N: Deep fibular nerve AA: Anterior tibial artery
Extensor Hallicus Longus (Harry)
O: Distal 2/3 of both posteior fibula and interosseus membrane
I: Distal phalanx of 1st digit (big toe)
A: Flexion of 1st digit at MTP PIP DIP jots
Dorsiflexion and inversion of foot at ankle joint
N: Tibial nerve
AA: Posterior tibial artery
Rectus Abdomius
O: Pubis (symphysis and crest)
I: Xyphoid process, costal cartilages of ribs #5-7
A: Flexion of the trunk at the spinal joint
Posterior pelvic tilt
N: Intercostal nerve (ventral rami T5-T12)
AA: Superior and inferior epigastric, posterior intercostal
Psoas Major
O: Vertebral bodies TPs and discs from T12-L5
I: Lesser trochanter of Femur (merges with iliacus)
A: Flexion and lateral rotation of the thigh at the hip joint
Flexion and lateral flexion of the trunk @ the spinal joint
Anterior pelvic tilt
N: Lumbar plexus
AA: Lumbar arteries
Psoas minor
O: Bodies, discs and TPs of T12-L1 I: Pubis (pectineal line) Flexion of the trunk at the spinal joint Posterior pelvic tilt N: L1 spinal nerve AA: Lumbar arteries, common iliac
Infraspinatus
O: Infraspinous fossa I: Greater tubercle (middle facet) A: Lateral rotation of humerus at GH N: Supra scapular nerve AA: Suprascapular artery
Brachialis
O: Distal 1/2 of anterior shaft of humerus
I: Ulnar tuberosity and coronoid process of ulna
A: Flexes elbow jt
Musculocutaneous nerve, Brachial artery
Teres Major
O: inferior portion of lateral border of scapula
I: Medial lip of bicipital groove
A: Medial rotation, adducts, and extends arm at GH jt
Lower sub-scapular nerves
Circumflex scapular artery
Tensor Fascia Latae
O: ASIS I: IT-Band (proximal 1/3 way down) A: Flexion, abduction and medial rotation of thigh at hip jt Anterior pelvic tilt Superior gluteal nerve Deep femoral and superior gluteal artery
Febularis (Peroneus) longus
O: head of fibula and lateral 1/2 of lateral fibula
I: Plantar surface of 1st cuneiform and 1st metatarsal (it hooks around the cuboid)
A: Eversion and planter flexion of feet at ankle joint
superficial fibular nerve
fibular artery
Pectoralis minor
O: Rib 3-5
I: Coracoid process of scapula
A: Protraction and depression of scapula, elevates ribs 3-5 at sternocostal and costspinal joint
medial and lateral pectral nerve
Tibialis posterior
O: proximal 2/3 tibia, fibula and Interosseous membrane
I: Planter surface of metatarsals 2-4 and all tarsals (except talus, no muscles attach to the talus)
A: Plantar flexion and inversion of foot at ankle joint
Tibial nerve
Posterior tibial artery
