muscle 2: The sides marked A show the muscles of the first layer located immediately beneath the skin. Those marked B show the important muscles of the deeper layers. Where a muscle is shown in only one of the figures, that fact is indicated following the name: as, temporal (fig 1). Head and Neck: 1 frontalis, 2 occipitalis, 3 temporalis (fig 1), 4 orbicularis oculi, 5 zygomaticus major, 6 zygomaticus minor, 7 angular head of levator labii superioris (fig 1), 8 nasalis (fig 1), 9 orbicularis oris (fig 1), 10 triangularis (fig 1), 11 depressor of lower lip (fig 1), 12 mentalis, 13 masseter (fig 1), 14 buccinator (fig 1), 15 auricularis anterior, 16 auricularis superior, 17 auricularis posterior, a parotid gland, 18 mylohyoid muscle (fig 1), 19 digastric muscle, 20 platysma, 21 sternocleidomastoid, 22 omohyoid muscle (fig 1), 23 sternohyoid (fig 1), 24 trapezius, 25 splenius capitus (fig 2), 26 splenius cervicis (fig 2), 27 levator scapulae (fig 2), 28 supraspinatus (fig 2). Trunk: 29 pectoralis major (fig 1), 30 deltoid, 31 latissimus dorsi, 32 serratus anterior, 33 obliquus externus, 34 rectus abdominis (fig 1), 35 navel (fig 1), 36 abdominal aponeurosis (fig 1), 37 linea alba, 38 subclavius (fig 1), 39 pectoralis minor (fig 1), 40 serratus posterior superior (fig 1), 41 obliquus internus, 42 infraspinatus (fig 2), 43 teres minor (fig 2), 44 teres major (fig 2), 45 rhomboideus major (fig 2), 46 rhomboideus minor (fig 2), b scapula (fig 2), c 9th rib (fig 2), d 10th rib (fig 2), e 11th rib (fig 2), f 12th rib (fig 2), 47 serratus posterior inferior (fig 2), 48 lumbodorsal fascia (fig 2), 49 sacrospinalis (fig 2). Upper Extremity: 50 biceps brachii, 51 triceps brachii, 52 brachialis, 53 bicipital aponeurosis, 54 extensor carpi radialis longus, 55 brachioradialis, 56 flexor carpi radialis, 57 palmaris longus (fig 1), 58 flexor digitorum superficialis (fig 1), 59 flexor carpi ulnaris, 60 palmaris brevis, 61 extensor carpi radialis brevis, 62 flexor pollicis longus (fig 1), 63 pronator quadratus (fig 1), 64 flexor pollicis brevis (fig 1), 65 palmaris longus (cut across in fig 1), 66 first dorsal interosseus, 67 first lumbricalis (fig 1), 68 fibrous sheaths of the tendons, 69 adductor of the little finger, 70 extensor retinaculum of the wrist, g head of humerus (showing bicipital groove), 71 extensor digitorum communis (fig 1), 72 extensor carpi ulnaris (fig 1), 73 extensor pollicis longus, h medial epicondyle of humerus (fig 2), i lower end of radius (fig 2), j lower end of ulna (fig 2), 74 tendons of extensors of thumb (fig 2), 75 adductor pollicis (fig 2), 76 tendons of extensor digitorum communis (fig 2), 77 pronator teres (fig 2), 78 palmar aponeurosis (fig 2). Lower Extremity: k anterior superior iliac spine (fig 1), 79 iliacus (fig 1), 80 gluteus medius, 81 tensor fasciae latae, 82 rectus femoris (fig 1), 83 psoas major (fig 1), 84 pectineus (fig 1), 85 sartorius, 86 adductor longus (fig 1), 87 adductor magnus, 88 gracilis, 89 vastus lateralis, 90 vastus medialis, 91 gluteus minimus (fig 1), 92 superior extremity of rectus femoris (fig 1), 93 inferior extremity of rectus femoris (fig 1), m head of femur (fig 1), 94 inferior extremities of psoas major and iliacus (fig 1), 95 tendon of rectus femoris, n patella (fig 1), o head of fibula (fig 1), p medial condyle of femur (fig 1), r tuberosity of tibia (fig 1), 96 tibialis anterior, 97 medial head of gastrocnemius (fig 1), 98 soleus, 99 extensor digitorum longus (fig 1), 100 peroneus longus, 101 peroneus brevis (fig 1), 102 flexor digitorum longus (fig 1), 103 extensor hallucis longus (fig 1), 104 superior extensor retinaculum (fig 1), 105 extensor digitorum brevis, 106 abductor hallucis (fig 1), s ilium, t greater trochanter, 107 gluteus maximus (fig 2), 108 biceps femoris (fig 2), 109 semitendinosus (fig 2), 110 semimembranosus (fig 2), 111 plantaris (fig 2), 112 lateral head of gastrocnemius (fig 2), 113 flexor digitorum longus (fig 2), 114 peroneus tertius, 115 tendon of tibialis posterior (fig 2), 116 Achilles tendon (fig 2), u tuberosity of calcaneus, 117 piriformis (fig 2), 118 gemellus superior and gemellus inferior (fig 2), 119 obturator internus (fig 2), 120 quadratus femoris (fig 2)