Terminology List for Muscles Skeletal muscle cells: sarcolemma, sarcoplasm, nuclei, sarcoplasmic reticulum, myofibrils, sarcomere, thick and thin filaments, nuclei, T-tubules, motor neuron, motor end plate, neuromuscular junction, synapse, endomysium, motor neuron, motor end plate, synaptic cleft, muscle cell Muscle organ: fascicle, epimysium, perimysium, endomysium, tendon, aponeurosis, galea aponeurotica, linea alba, iliotibial tract, calcaneal tendon Muscles of Human & Cat Human Muscles Cat Muscles Muscles of the Head and Neck epicranius (frontalis belly; occipitalis belly) temporalis orbicularis oris orbicularis oculi extrinsic eye muscles (as a group) zygomaticus major masseter masseter digastric buccinator platysma temporalis sternocleidomastoid sternomastoid cleidomastoid mylohyoid sternohyoid Muscles of the Trunk rhomboideus major rhomboideus minor rhomboideus subscapularis levator scapula serratus anterior serratus ventralis pectoantibrachialis pectoralis major pectoralis major pectoralis minor pectoralis minor xiphihumeralis deltoid clavodeltoid acromiodeltoid spino deltoid trapezius clavotrapezius acromiotrapezius spinotrapezius supraspinatus infraspinatus teres minor latissimus dorsi latissimus dorsi erector spinae external intercostals internal intercostals external oblique external oblique internal oblique internal oblique transverse abdominis transversus abdominis rectus abdominis rectus abdominus scalenius medius Muscles of the Pectoral Appendage epitrochlearis biceps brachii biceps brachii brachialis brachialis triceps brachii triceps brachii flexor carpi radialis flexor carpi radialis brachioradialis brachioradialis flexor digitorum extensor carpi radialis extensor carpi radialis extensor digitorum extensor digitorum palmaris longus palmaris longus Muscles of the Pelvic Appendage gluteus medius gluteus medius gluteus maximus gluteus maximus psoas major iliacus adductor femoris adductor longus adductor magnus pectineus gracilis gracilis sartorius sartorius tensor fascia latae tensor fascia latae biceps femoris biceps femoris semitendinosus semitendinosus semimembranosus semimembranosus adductor femoris rectus femoris rectus femoris vastus lateralis vastus lateralis vastus intermedius vastus medialis vastus medialis gastrocnemius gastrocnemius & achilles tendon & achilles tendon soleus soleus tibialis anterior tibialis anterior peroneus longus peroneus muscles extensor digitorum longus extensor digitorum longus .