CSM Anatomy Muscles Lab Guide internal oblique HISTOLOGY transversus abdominis smooth muscle rectus abdominis (tendinous inscriptions) skeletal muscle linea alba striations inguinal ligament cardiac muscle Pelvic Floor Muscles intercalated discs Thigh BODY MOVEMENTS (these terms must quadriceps femoris be used to describe actions of muscles) rectus femoris flexion and extension vastus lateralis adduction and abduction vastus medialis rotation vastus intermedius supination and pronation patellar tendon and ligament inversion and eversion sciatic nerve plantar flexion and dorsiflexion sartorius elevation and depression hamstrings protraction and retraction biceps femoris semitendinosus semimembranosus MUSCLES iliopsoas gluteus maximus Items in italics are not muscles but tendons or gluteus medius ligaments. iliotibial tract (band) tensor fasciae latae Anterior Head and Trunk gracilis Face pectineus frontalis adductor longus orbicularis oculi adductor brevis orbicularis oris adductor magnus platysma temporalis Leg masseter tibialis anterior zygomaticus major gastrocnemius External Ocular Muscles (6) extensor digitorum longus Tongue (Glossus) Muscles (4) extensor hallucis longus Sternocleidomastoid peroneus/fibularis longus pectoralis major peroneus /fibularis brevis pectoralis minor flexor hallucis longus serratus anterior diaphragm soleus external and internal intercostals calcaneal tendon external oblique Posterior Trunk erector spinae (3 groups) trapezius rhomboideus major rhomboideus minor latissimus dorsi supraspinatus infraspinatus teres major teres minor subscapularis Arm deltoid biceps brachii ( short and long head) brachialis triceps brachii (lateral, medial and long heads) Forearm brachioradialis flexor carpi radialis palmaris longus flexor carpi ulnaris extensor carpi radialis longus extensor carpi radialis brevis extensor digitorum extensor carpi ulnaris extensor digiti minimi pronator teres Hand thenar eminence hypothenar eminence .