Muscle Anatomy

Electronic Myoanatomic Atlas for Clinical EMG

Volume I, Edition 2, 2005

Objectives
1 - Identify over 60 commonly tested muscles for needle EMG examination.
2 - Describe the method of activating the tested muscle.
3 - Define the site of needle insertion.
4 - Review basic anatomy (nerves, roots, insertion, and origin).
5 - Study the principles of needle EMG examinations.


The Upper Extremity Muscles

Intrinsic Muscles of the Hand


Abductor Digiti Minimi - Hand

Abductor Pollicis Brevis

First Dorsal Interosseous - Hand

Distal Arm


Anconeus

Brachioradialis

Extensor Carpi Radialis

Extensor Digitorum Communis

Extensor Indicis

Flexor Carpi Radialis

Flexor Carpi Ulnaris

Flexor Digitorium Profundus

Flexor Pollicis Longus

Pronator Teres

Supinator

Proximal Arm and Shoulder


Biceps Brachii

Deltoid - Anterior

Deltoid - Middle

Infraspinatus

Latissimus Dorsi

Levator Scapula

Pectoralis Major - Clavicular

Pectoralis Major - Sternocostal

Rhomboids - Major

Rhomboids - Minor

Serratus Anterior

Supraspinatus

Teres Major

Triceps Brachii - Lateral Head

Triceps Brachii - Long Head


The Lower Extremity Muscles

Intrinsic Muscles of the Foot


Abductor Digiti Quinti - Foot

Abductor Hallucis

Extensor Digitorum Brevis

First Dorsal Interosseous - Foot

Distal Leg


Anterior Tibial

Extensor Digitorum Longus

Extensor Hallucis Longis

Gastrocnemius - Lateral Head

Gastrocnemius - Medial Head

Peroneus Longus

Soleus

Thigh and Pelvis


Adductor Longus

Biceps Femoris - Short Head

Gluteus Maximus

Gluteus Medius

Iliacus

Semimembranosus

Semitendinosus

Vastus Lateralis

Vastus Medialis


Paraspinal Muscles


Cervical Paraspinals

Thoracic Paraspinals

Lumbar Paraspinals

Cranial Muscles


Frontalis

Masseter

Orbicularis Oculi

Orbicularis Oris

Sternocleidomastoid

Tounge - Genioglossus

Trapezius

Other Muscles


Scalenes

Splenius Capitus


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