Muscle/ Origin & Insertion

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Psoas major origin: vertebral bodies, transverse processes, intervertebral discs, ____________

T12-L5

latissimus dorsi origin is spinous processes of ___________ lumbodorsal fascia, crest of ilium, lower ribs

T7-12

♠Torso

trunk of the human body; area from neck to pelvis

Semimembranosus [Origin and Insertion]

∞Posterior Thigh (Quadriceps) Origin: ischial tuberosity Insertion: medial condyle of tibia

Semitendinosus (1/2 of medial hamstrings) [Origin and Insertion]

∞Posterior Thigh (Quadriceps) Origin: ischial tuberosity Insertion: proximal anteromedial tibia (as part of pes anserine tendon)

Biceps Femoris (lateral hamstrings) [Origin and Insertion]

∞Posterior Thigh (Quadriceps) Origin: long head: ischial tuberosity short head: proximal posterior femur Insertion: head of fibula (80%) lateral condyle of tibia

Teres Minor [Origin and Insertion]

◙Shoulder Origin: dorsoinferior axillary border of scapula Insertion: inferior facet of greater tuberosity of humerus

Infraspinatus [Origin and Insertion]

◙Shoulder Origin: infraspinous fossa of scapula Insertion: middle facet of greater tuberosity of humerus

Subscapularis [Origin and Insertion]

◙Shoulder Origin: subscapular fossa of scapula Insertion: lesser tuberosity of humerus

Supraspinatus [Origin and Insertion]

◙Shoulder Origin: supraspinous fossa of scapula Insertion: superior facet of greater tuberosity of humerus

Extensor Carpi Radialis (longus & brevis) [Origin and Insertion]

☻Forearm Origin: Common Extensor tendon-lateral epicondyle of humerus Insertion: Longus: dorsal base of 2nd metacarpal Brevis: dorsal base of 3rd metacarpal

Extensor Carpi Ulnaris [Origin and Insertion]

☻Forearm Origin: Common Extensor tendon-lateral epicondyle of humerus Insertion: base of 5th metacarpal vis pisiform bone

Pronator Teres [Origin and Insertion]

☻Forearm Origin: Common Flexor tendon-medial epicondyle of humerus Insertion: mid-shaft of radius

Palmaris Longus [Origin and Insertion]

☻Forearm Origin: Common Flexor tendon-medial epicondyle of humerus Insertion: palmar aponeurosis

Flexor Carpi Radialis [Origin and Insertion]

☻Forearm Origin: Common Flexor tendon-medial epicondyle of humerus Insertion: palmar base of 2nd metacarpal

Flexor Carpi Ulnaris [Origin and Insertion]

☻Forearm Origin: Common Flexor tendon-medial epicondyle of humerus Insertion: primarily on to pisiform and then by tendinous extensions to 5th metacarpal and hamate.

Brachioradialis [Origin and Insertion]

☻Forearm Origin: lateral supracondylar ridge of humerus Insertion: lateral distal radius just proximal to styloid process

Latissimus Dorsi [Origin and Insertion]

♠Torso Origin: spinous processes of T 7-12 lumbodorsal fascia, crest of ilium, lower ribs Insertion: floor of bicipital groove

Pectoralis Major [Origin and Insertion]

♠Torso Origin: sternum, medial clavicle, costal cartilage, aponeurosis of external obliques. Insertion: lateral lip of bicipital groove

Gluteus Maximus [Origin and Insertion]

♥Hip Origin: Posterior ilium, sacrum, coccyx Insertion: greater trochanter of femur

Psoas Major [Origin and Insertion]

♥Hip Origin: Vertebral bodies, transverse processes, intervertebral discs, T12-L5 Insertion: lesser trochanter (blends with tendon of iliacus)

iliacus [Origin and Insertion]

♥Hip Origin: iliac fossa of anterior ilium Insertion: lesser trochanter of femur

Brachialis [Origin and Insertion]

♦Arm Origin: distal half of anterior humerus Insertion: coronoid process of anterior ulna

Triceps brachii [Origin and Insertion]

♦Arm Origin: long head- infraglenoid tubercle of scapula short head- posterolateral humerus medial head- lower posterior humerus Insertion: olecranon process of ulna

Biceps brachii [Origin and Insertion]

♦Arm Origin: long head- supraglenoid tubercle of scapula short head- coracoid process of scapula Insertion: radial tuberosity of radius

Rectus Femoris [Origin and Insertion]

🌟Anterior Thigh (Quadriceps) Origin: Straight head: AIIS Reflected head: upper brim of acetabulum Insertion: tibial tuberosity (via infrapatellar tendon)

Vastus Intermedius [Origin/Insertion/Action]

🌟Anterior Thigh (Quadriceps) Origin: broad origin from anterior femur Insertion: tibial tuberosity (via infrapatellar tendon) Action: Extends leg

Vastus Lateralis [Origin/Insertion/Action]

🌟Anterior Thigh (Quadriceps) Origin: broad origin from anterior femur Insertion: tibial tuberosity (via infrapatellar tendon) Action: Extends leg, stabilizes knee

Vastus Medialis [Origin/Insertion/Action]

🌟Anterior Thigh (Quadriceps) Origin: broad origin from anterior femur Insertion: tibial tuberosity (via infrapatellar tendon) Action: Extends leg, stabilizes patella

Tibialis Anterior [Origin and Insertion]

🏁Leg Origin: lateral condyle of the tibia upper 2/3 of the lateral surface of tibia Insertion: medial and plantar surface of medial cuneiform bone, base of 1st metatarsal

Fibularis Longus (aka peroneus longus) [Origin and Insertion]

🏁Leg Origin: lateral condyle of the tibia, head and upper lateral surface of fibula Insertion: lateral side of medial cuneiform bone, base of 1st metatarsal bone

Tibialis Posterior [Origin and Insertion]

🏁Leg Origin: lateral/posterior surface of tibia, upper medial surface of fibula Insertion: tuberosity of navicular bone, plantar surface of all cuneiform

Fibularis Brevis (aka peroneus brevis) [Origin and Insertion]

🏁Leg Origin: lower/lateral surface of fibula Insertion: lateral side of base of 5th metatarsal bone

Gastrocnemius [Origin and Insertion]

🏁Leg Origin: medial head: medial femoral condyle and adjacent femur Lateral head: lateral femoral condyle and adjacent femur; knee joint capsule Insertion: calcaneal tuberosity via calcaneal (achilles) tendon.

Soleus [Origin and Insertion]

🏁Leg Origin: middle 3rd of medial border of tibia; posterior head and upper 1/3 of shaft of fibula Insertion: calcaneal tuberosity via calcaneal (achilles) tendon.


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