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