Lab 8 MUSCLES
Due in Lab 10 2 weeks because of Thanksgiving Prelab #10 Both sides! Homework #8 Both sides!
Refer to Muscles 22-23 Naming of muscles Origin Site of muscle attachment that doesn t move during action Usually proximal Insertion Site of muscle attachment that moves during action Usually distal
Examples of Origin & Insertion Muscle Origin Insertion Temporalis Temporal fossa of the temporal bone Coronoidprocess of mandible Deltoid Lateral third of clavicle, acromion, and spine of scapula Biceps brachii Short head-coracoid process of scapula. Long head-superior portion of glenoid fossa of scapula Deltoid tuberosityof humerus By common tendon into radial tuberosity of radius and proximal ulna
Part 1 Muscles of the head, neck, torso & arm.
Frontalis Orbicularis oculi Zygomaticus Buccinator Orbicularis oris Mentalis Temporalis Masseter Sternocleidomastoid Trapezius Platysma
Temporalis Elevates & retracts mandible Masseter = Prime mover of jaw closure
Sternocleidomastoid Deltoid Pectoralis major Sternum Biceps brachii Subclavius Clavicle Subscapularis Pectoralis minor Coracobrachialis Serratus anterior Humerus
Levator scapulae Trapezius Deltoid Rhomboid minor Rhomboid major Supraspinatus Clavicle Spine of scapula Infraspinatus Teres minor Teres major Humerus Latissimus dorsi
Clavicle Deltoid Sternum Pectoralis major Coracobrachialis Triceps brachii: Lateral head Long head Medial head Biceps brachii Brachialis Brachioradialis Anterior view
Supraspinatus* Spine of scapula Deltoid (cut) Greater tubercle of humerus Infraspinatus* Teres minor* Teres major Triceps brachii: Lateral head Long head Latissimus dorsi Humerus Olecranon process of ulna Anconeus Posterior view * Rotator cuff muscles
Superficial transverse ligament of palm Palmar aponeurosis Flexor digitorum superficialis Flexor carpi ulnaris Palmaris longus Flexor carpi radialis Medial epicondyle of humerus Medial head of triceps brachii Flexor retinaculum Pronator quadratus Flexor pollicis longus Extensor carpi radialis longus Brachioradialis Pronator teres Tendon of biceps brachii Biceps brachii
Extensor digitorum
Abdomen Rectus abdominis Internal oblique Transversus abdominis External oblique
Part 2 Muscles of the thigh and leg
Gluteus medius Gluteus maximus Adductor magnus Gracilis Iliotibial tract Long head Short head Biceps femoris Hamstrings Semitendinosus Semimembranosus
12th rib Quadratus lumborum Psoas minor Iliac crest Psoas major Iliopsoas Iliacus Anterior superior iliac spine Tensor fasciae latae Pectineus Sartorius Quadriceps femoris Rectus femoris Vastus lateralis Vastus medialis 12th thoracic vertebra 5th lumbar vertebra Adductor longus Gracilis Adductor magnus Tendon of quadriceps femoris Patella Patellar ligament
Plantaris Gastrocnemius Medial head Lateral head Tendon of gastrocnemius Calcaneal tendon Medial malleolus Superficial view of the posterior leg Lateral malleolus Calcaneus
Gastrocnemius medial head (cut) Flexor digitorum longus Tendon of tibialis posterior Medial malleolus Calcaneal tendon (cut) Plantaris (cut) Gastrocnemius lateral head (cut) Popliteus Soleus (cut) Tibialis posterior Fibula Fibularis longus Flexor hallucis longus Fibularis brevis Calcaneus Deep muscles of the posterior compartment
Fibularis longus Gastrocnemius Tibia Tibialis anterior Extensor digitorum longus Soleus Extensor hallucis longus Fibularis tertius Superior and inferior extensor retinacula Extensor hallucis brevis Extensor digitorum brevis
Patella Head of fibula Gastrocnemius Soleus Fibularis longus Extensor digitorum longus Fibularis brevis Flexor hallucis longus Fibular retinaculum Lateral malleolus Tibialis anterior Extensor hallucis longus Fibularis tertius Superior and inferior extensor retinacula Extensor hallucis brevis Extensor digitorum brevis 5th metatarsal
Head Temporalis Masseter Shoulder Trapezius Deltoid Arm Triceps brachii Biceps brachii Brachialis Forearm Brachioradialis Flexor carpi radialis Palmaris longus Thigh Rectus femoris Vastus lateralis Vastus medialis Leg Extensor digitorum longus Tibialis anterior Facial Frontalis (frontal belly of epicranius) Orbicularis oculi Orbicularis oris Neck Platysma Sternocleidomastoid Thorax Serratus anterior Pectoralis major Abdomen Rectus abdominis Internal oblique Transversus abdominis External oblique Thigh Tensor fasciae latae Sartorius Adductor longus Gracilis Leg Gastrocnemius Soleus
Arm Triceps brachii Brachialis Forearm Brachioradialis Extensor digitorum Iliotibial tract Leg Gastrocnemius Soleus Neck Epicranius, occipital belly Sternocleidomastoid Trapezius Shoulder Deltoid Infraspinatus Teres major Rhomboid major Latissimus dorsi Hip Gluteus medius Gluteus maximus Thigh Adductor magnus Hamstrings: Biceps femoris Semitendinosus Semimembranosus Calcaneal (Achilles) tendon