MicroAnatomy Muscle Fiber Model

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1 MicroAnatomy Muscle Fiber Model Muscle fiber whole model (but model is only a fraction of a fiber) Sarcolemma 14 Myofibril 1 Nucleus 8 Mitochondria 2 Triad 16 Sarcoplasmic reticulum 17 T tubule 15 Thin filament (actin) 11 Thick filament (myosin) 9 Sarcomere 10, (Z-disc to Z-disc) A band - H band - M line - I band - Z disc - band of thick filaments, includes zone of overlap thick filaments only middle of thick filaments band of thin filaments middle of thin filaments, denotes ends of sarcomere

2 Full-Scale Human Torso Model Orbicularis oculi Orbicularis oris Biceps brachii - Triceps brachii (incomplete) 153 (incomplete) Zygomaticus major Gluteus maximus Sternocleidomastoid External Oblique Rectus Abdominis Serratus anterior Tensor fasciae latae - Sartorius - Rectus femoris - Vastus lateralis (incomplete) 170 (incomplete) 173 (incomplete) 172&178 (incomplete) Trapezius (incomplete) Vastus medialis (incomplete) Latissimus dorsi (incomplete) Gracilis (incomplete) Pectoralis major Deltoid Biceps femoris - Semitendinosus (incomplete) 182 (incomplete)

3 Three-Quarter-Scale Muscle Figure Model *Note: Numbers are reused repeatedly on this model: you must already know what region to be looking in for the numbers to be helpful in locating the muscle. Orbicularis oculi - 72&73 Orbicularis oris - 77 Zygomaticus major - 78 Flexor carpi ulnaris - 25 Flexor digitorum superficialis - 26 Gluteus maximus - 11 Platysma (not on model) Tensor fasciae latae - 18 Sternocleidomastoid - 97 External oblique Rectus abdominis Serratus anterior - 17 Trapezius - 16,104,105 Latissimus dorsi - 10 Pectoralis major - 22,23,24 Deltoid - 10 Biceps brachii - 11,12,13 Triceps brachii - 16,17,18 Extensor carpi radialis longus - 20 Extensor carpi ulnaris - 32 Extensor digitorum - 30 Sartorius - 24 Rectus femoris - 20 Vastus lateralis - 21 Vastus medialis - 23 Vatus intermedius - 22 Gracilis - 27 Biceps femoris - 31&32 Semitendinosus - 30 Gastrocnemius - 37&38 Soleus - 39 Tibialis anterior - 33 Extensor digitorum longus - 34 Fibularis (Peroneus) longus - 35

4 Half-Scale Muscle Figure Model * Note: Numbers are reused repeatedly on this model: You must already know what region to be looking in for the numbers to be helpful in locating the muscle. Orbicularis oculi - 57&58 Orbicularis oris - 62 Zygomaticus major - 63 Platysma (not on model) Sternocleidomastoid - 81 External oblique - 77 Rectus abdominis - 80 Serratus anterior - 24 Trapezius - 21,22,23 Latissimus dorsi - 13 Pectoralis major - 28,29,30 Deltoid - 5 Biceps brachii - 14&15 Triceps brachii - 17,18,19 Extensor carpi radialis longus - 21 Extensor carpi ulnaris - 33 Extensor digitorum - 31 Flexor carpi ulnaris - 26 Flexor digitorum superficialis - 27 Gluteus maximus - 10 Tensor fasciae latae - 17 Sartorius - 23 Rectus femoris - 19 Vastus latralis - 20 Vastus medialis - 22 Vastus intermedius - 21 Gracilis - 27 Biceps femoris - 31&32 Semitendinosus - 30 Gastrocnemius - 37&38 Soleus - 39 Tibialis anterior - 33 Extensor digitorum longus - 34 Fibularis (Peroneus) longus - 35

5 One-Quarter-Scale Muscle Figure Model Orbicularis oculi 10 Orbicularis oris 13 Zygomaticus major 14 Flexor carpi ulnaris 49 Flexor digitorum superficialis 48 Gluteus maximus 61 Platysma (not on model) Tensor fasciae latae - 62 Sternocleidomastoid 28 External oblique 111 Rectus abdominis 114 Serratus anterior 98 Sartorius 67 Rectus femoris 64 Vastus lateralis 65 Vastus medialis 66 Trapezius 95,96,97 Vastus intermedius (not visible) Latissimus dorsi 93 Pectoralis major 100,101,102 Deltoid 36 Biceps brachii 37&38 Triceps brachii 40&41 Extensor carpi radialis longus 43 Extensor carpi ulnaris 52 Extensor digitorum 50 Gracilis 71 Biceps femoris 75&76 Semitendinosus 74 Gastrocnemius 81&82 Soleus 83 Tibialis anterior 77 Extensor digitorum longus 78 Fibularis (Peroneus) longus 79

6 Muscled Arm Model Deltoid - 10 Biceps brachii - 11, 12, 13 Triceps brachii - 16, 17, 18 Extensor carpi radialis longus - 20 Extensor carpi ulnaris - 32 Extensor digitorum - 30 Flexor carpi ulnaris - 25 Flexor digitorum superficialis - 26

7 Muscled Leg Model Gluteus maximus - 1 Tensor fasciae latae - 7 Sartorius - 8 Rectus femoris - 12 Vastus lateralis 11 Vastus medialis - 10 Vastus intermedius - 12a Gracilis - 13 Biceps femoris - 18 & 19 Semitendinosus - 16 Gastrocnemius - 24 & 25 Soleus - 27 Tibialis anterior 20 Extensor digitorum longus 21 Fibularis (Peroneus) longus 22

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