Gross Anatomy of the Muscular System

Arm and Leg MusclesNote: these muscles are best studied

with the actual models. Due to the structure of your limbs it is difficult to

study these pictures if you haven’t adequately looked at them in lab.

Lateral/Medial Arm Muscles

• Deltoid

• Biceps brachii

• Brachialis

• Triceps brachii

• Coracobrachialis

• Brachioradialis

Anterior Forearm Muscles (superficial)

• Flexor carpi radialis

• Palmaris longus

• Flexor carpi ulnaris

• Pronator teres

Posterior Forearm Muscles (superficial and deep)

• Brachioradialis

• Extensor carpi radialis longus

• Extensor carpi radialis brevis

• Extensor digitorum

• Extensor carpi ulnaris

Anterior Upper Leg Muscles (superficial and deep)

• Rectus femoris

• Vastus medialis

• Vastus lateralis

• Vastus intermedius

Posterior Upper Leg Muscles

• Biceps Femoris

• Semitendinosus

• Semimembranosus

• Gluteus Maximus

• Gluteus Medius (not shown)

Adductors & Sartorius

• Gracilis• Adductor Longus• Adductor Magnus

• Sartorius

Lateral Upper Leg Muscles

• Tensor Fasciae Latae

• Vastus lateralis

Anterior/Lateral Lower Leg Muscles

• Tibialis anterior

• Extensor digitorum longus

• Fibularis (Peroneus)

Gastrocnemius, Soleus,