Lab Hand Out 6 Human Muscles

1. Objective: Be able to identify these muscles on the muscle models 3.MUSCLES OF THE LIMB GIRDLES AND EXTREMITIES 1. S: superficial Muscles that move the pectoral girdle 2. D: Deep A. Trapezius 2. HEAD, NECK AND TORSO B. Levator scapulae A. Muscles of facial expression C. Rhomboid minor B. Buccinator D. Rhomboid major C. Depressor anguli oris E. Pectoralis minor D. Depressor labii inferioris F. Serratus anterior E. Frontal belly of Occipitofrontalis () Muscles that move the arm/brachium F. Occipital belly of Occipitofrontalis (Occipitalis muscle) A. Deltoid G. Gala aponeurotica (epicranial ) B. Latissimus dorsi H. C. Pectoralis major I. D. Coracobrachialis J. Orbicularis oculi E. Rotator cuff (4) K. Orbicularis oris 1) Supraspinatus L. Platysma 2) Infraspinatus M. 3) Teres minor N. Zygomaticus – major & minor 4) Subscapularis Muscles that move the mandible F. Teres major 1) Masseter Muscles that move the forearm (at elbow) 2) Temporalis A. Biceps brachii Muscles that move the head & neck B. Brachialis 1) Sternocleidomastoid (SCM) C. Brachioradialis 2) Scalenes D. Pronator teres a. Anterior scalene E. Triceps brachii b. Middle scalene 1) long head c. Posterior scalene 2) lateral head 3) Semispinalis capitis 3) medial head 4) Splenius capitis F. Supinator (D) Muscles of the floor of the mouth (suprahyoid muscles) Muscles that move the wrist & fingers A. Digastric A. Flexor carpi radialis (S) B. Mylohyoid B. Palmaris longus (S) Extrinsic muscles of the larynx (infrahyoid muscles) C. Flexor carpi ulnaris (S) A. Sternohyoid D. Flexor digitorum superficialis (D) B. Omohyoid E. Flexor digitorum profundus (D) C. Thyrohyoid F. Flexor pollicus longus (D) D. Sternothyroid G. Extensor carpi radialis longus Muscles of the torso/vertebral column H. Extensor carpi radialis brevis A. Longissimus thoracis I. Extensor digitorum B. Quadratus lumborum J. Extensor digiti minimi C. Serratus posterior K. Extensor carpi ulnaris Muscles used for breathing L. Abductor pollicis longus A. Diaphragm M. Extensor pollicis B. External intercostals Muscles that move the thigh (at the hip joint) C. Internal intercostals A. Iliopsoas G. Gracilis Abdominal wall muscles 1) Iliacus H. Gluteus maximus A. Rectus abdominis 2) Psoas major I. Gluteus medius B. External oblique abdominis B. Iliotibial tract (IT band) J. Piriformis C. Internal oblique abdominis C. Tensor fasciae latae K. Gemellus superior D. Transversus abdominis D. Pectineus L. Obturator internus E. Adductor longus M. Gemellus inferior F. Adductor magnus N. Quadratus femoris

Muscles that move the ankle/foot/toes Muscles that move the thigh (at hip) &/or leg (at A. Tibialis anterior knee joint) B. Extensor digitorum longus A. Sartorius C. fibularis (Peroneus) longus B. Quadriceps tendon D. fibularis (Peroneus) brevis C. Patellar ligament E. Flexor digitorum longus D. Quadriceps femoris F. Tibialis posterior 1) Rectus femoris 3. Vastus lateralis G. Plantaris 2) Vastus medialis 4. Vastus intermedius H. Triceps surae group E. Hamstrings 1) Gastrocnemius 1) Biceps femoris 2) Soleus 2) Semitendinosus I. Calcaneal (Achille’s) tendon 3) Semimembranosus F. Popliteus

Lab Hand Out 5 and 6 Muscles Page 1