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Neuromuscular Junction Motor Neuron Neuromuscular Junction Muscle Fiber / Cell

Muscle Fiber / Muscle Cell Nucleus Endomysium Sarcolemma Myofibrils Sarcoplasm

Levator labii superioris Muscles of facial expression Frontalis Occipitalis Orbicularis oculi Orbicularis oris Levator labii superioris Zygomaticus major Zygomaticus minor Depressor anguli oris Depressor labii inferioris Mentalis Buccinator

Muscles of Chewing Frontalis Temporalis Orbicularis oculi Masseter Orbicularis oris Levator labii superioris Risorius Zygomaticus minor Depressor anguli oris Zygomaticus major Mentalis Buccinator

Muscles of the Neck Omohyoid Sternocleidomastoid Sternohyoid

Muscles of Respiration Muscles acting on shoulder Internal intercostals Pectoralis minor External intercostals Pectoralis major Serratus anterior Muscles of Abdomen External oblique Internal oblique Rectus abdominis Transversus abdominis

Muscles acting on the shoulder and upper arm Trapezius Levator scapulae Deltoid Supraspinatus Teres minor Infraspinatus Teres major Muscles of the Back Latissimus dorsi Erector spinae group Serratus posterior (inferior)

Muscles acting on the shoulder and upper arm Muscles acting on the forearm Coracobrachialis Biceps brachii Brachialis Muscles acting on the wrist and hand Triceps brachii Flexor carpi radialis Brachioradialis Flexor carpi ulnaris Palmaris longus Pronator teres

Muscles acting on the wrist and hand Muscles acting on the forearm Triceps brachii Extensor carpi radialis longus Extensor carpi radialis brevis Brachioradialis Extensor carpi ulnaris Anconeus Extensor digitorum communis Flexor carpi ulnaris

Muscles acting on the hip and femur iliopsoas Gluteus maximus iliacus Gluteus medius Psoas major Adductor longus Adductor magnus Gracilis

Muscles acting on the knee Tensor fasciae latae Hamstring group Glutemus medius Biceps femoris Glutemus maximus Semimembranosus Gracilis Semitendinosus

Muscles acting on the knee Iliopsoas Adductor longus Quadriceps femoris Group Gracilis Rectus femoris Vastus lateralis Vastus medialis Vastus intermedius (not shown) Sartorius

Muscles acting on the foot Gastrocnemius Soleus Tibialis anterior Extensor digitorum longus Peroneus longus Peroneus brevis

Muscles acting on the foot Flexor hallucis longus Tibialis posterior Gastrocnemius Soleus

Muscles acting on the foot Abductor digiti minimi Flexor digitorum brevis Abductor hallucis