Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Muscles to Identify Friends don’t let friends use anabolic steroids!
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Naming Skeletal Muscles A. Location of muscle B. Shape of muscle C. Relative size D. Direction of fibers E. Number of origins F. Location of attachments G. Action
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings A. Location of muscle – bone or body region associated with the muscle Frontalis Temporalis Occipitalis
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings B. Shape of muscle Deltoid Trapezius Rhomboid major
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings C. Relative size Gluteus maximus Gluteus medius Gluteus minimus
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings D. Direction of fibers External oblique Rectus abdominis Internal oblique Transversus abdominis
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings E. Number of origins Biceps brachii
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings G. Action
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Muscles of the Head and Neck
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Orbicularis Oculi Point of Origin= Medial wall of the orbit Point of Insertion= Circular path around the orbit Action= Closes eyes
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Orbicularis Oris Point of Origin= Mandible and Maxilla Point of Insertion= Corners of the mouth Action= Closes mouth; purse lips; kissing
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Temporalis Point of Origin= Superior temporal fossa Point of Insertion= Coronoid process of the mandible Action= Closes jaw and elevates the mandible
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Sternocleidomastoid Point of Origin= Manubrium (Sternum) and Clavicle Point of Insertion= Mastoid process (Temporal bone) Action= Flexion of neck and rotation of head
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings F. Location of attachments Sternocleidomastoid
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Anterior Shoulder and Thorax Muscles
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Abdominal Muscles
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Posterior Shoulder and Thorax Muscles
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Pectoralis Major Point of Origin= Medial and anterior clavicle, lateral manubrium, and lateral sternal body Point of Insertion= Lateral lip of intertubercular sulcus Action= Adduction and Internal rotation of the shoulder
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Rectus Abdominis Point of Origin= Pubic crest and pubic symphysis Point of Insertion= 5 th -7 th costal cartilages Action= Flexion of the vertebral column and posterior tilt of the pelvis
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings External Oblique Point of Origin= Ribs 5-12 (at an angle) Point of Insertion= Anterior iliac crest and lateral to the rectus abdominis Action= Flexion and rotation of vertebral column
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Supraspinatus Point of Origin= Supraspinous fossa Point of Insertion= Greater tubercle of the humerus Action= Abduction of the shoulder
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Infraspinatus Point of Origin= Infraspinous fossa Point of Insertion= Greater tubercle of the humerus Action= External (lateral) rotation of the shoulder
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Trapezius Point of Origin= Occipital bone and the spinous processes of C7 through T12 Point of Insertion= Clavicle, acromion and spine (of the scapula) Action= Elevation and depression of the scapula
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Levator Scapulae Point of Origin= Transverse processes C1-C4 Point of Insertion= Superior angle of the scapula Action= elevation of the scapula
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Latissimus Dorsi Point of Origin= Spinous processes of T6-L5, the iliac crest, the sacrum and ribs 9-12.nous Point of Insertion= Intertubercular sulcus Action= Adduction of the humerus
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Deltoid Point of Origin= Clavicle, acromion and spine of the scapula Point of Insertion= Deltoid tuberosity Action= Abduction of the shoulder
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Anterior and Posterior Deltoid
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings © 2014 Pearson Education, Inc. Figure 10.15a–b Muscles crossing the shoulder and elbow joints, causing movements of the arm and forearm, respectively. Clavicle Supraspinatus* Deltoid Sternum Pectoralis major Coracobrachialis Triceps brachii: Lateral head Long head Medial head Biceps brachii Brachialis Brachio- radialis Spine of scapula Deltoid (cut) Greater tubercle of humerus Infraspinatus* Teres minor* Teres major Triceps brachii: Lateral head Long head Latissimus dorsi Humerus Olecranon of ulna Anconeus Posterior view Anterior view
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Brachialis Point of Origin= Distal, anterior surface of the humerus Point of Insertion= Coronoid process of the ulna Action=Flexion of the elbow
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Biceps Brachii Point of Origin= Long head: superior margin of the glenoid fossa Short head: the coracoid process of the scapula Point of Insertion= Radial tuberosity Action= Flexion of the elbow
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Triceps Brachii Point of Origin= ong Long head: the inferior margin of the Glenoid fossa Lateral head: the lateral, posterior surface of the humerus Medial head: the posterior surface of the humerus Point of Insertion= Olecranon Action= Extension of the elbow
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings © 2014 Pearson Education, Inc. 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 Brachio- radialis Pronator teres Tendon of biceps brachii Biceps brachii Figure 10.16a Muscles of the anterior fascial compartment of the forearm acting on the right wrist and fingers.
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings © 2014 Pearson Education, Inc. Figure 10.17a Muscles of the posterior fascial compartment of the right forearm acting on the wrist and fingers. Extensor expansion Tendons of extensor digitorum Extensor pollicis longus Extensor pollicis brevis Abductor pollicis longus Extensor digitorum Extensor carpi radialis brevis Extensor carpi radialis longus Tendons of extensor carpi radialis brevis and longus Extensor indicis Extensor digiti minimi Extensor carpi ulnaris Flexor carpi ulnaris Anconeus Insertion of triceps brachii Brachioradialis
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings © 2014 Pearson Education, Inc. 12th rib Quadratus lumborum Psoas minor Iliac crest Iliopsoas Psoas major Iliacus 12th thoracic vertebra 5th lumbar vertebra Anterior superior iliac spine Tensor fasciae latae Pectineus Sartorius Adductor longus Quadriceps femoris Rectus femoris Gracilis Adductor magnus Vastus lateralis Vastus medialis Tendon of quadriceps femoris Patella Patellar ligament Figure 10.20a Anterior and medial muscles promoting movements of the thigh and leg.
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings © 2014 Pearson Education, Inc. Figure 10.21a Posterior muscles of the right hip and thigh. Gluteus medius Gluteus maximus Adductor magnus Gracilis Iliotibial tract Long head Short head Biceps femoris Hamstrings Semitendinosus Semimembranosus
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings © 2014 Pearson Education, Inc. Figure 10.22a Muscles of the anterior compartment of the right leg. 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
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings © 2014 Pearson Education, Inc. Figure 10.24a Muscles of the posterior compartment of the right leg. Plantaris Gastrocnemius Medial head Lateral head Tendon of gastrocnemius Calcaneal tendon Medial malleolus Superficial view of the posterior leg. Lateral malleolus Calcaneus
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings © 2014 Pearson Education, Inc. Figure 10.24b Muscles of the posterior compartment of the right leg. The gastrocnemius has been removed to show the soleus immediately deep to it. Tendon of tibialis posterior Fibularis brevis Fibularis longus Tendon of plantaris Soleus Gastrocnemius Lateral head (cut) Medial head (cut) Head of fibula Popliteus Plantaris
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Rectus Femoris Point of Origin= AIIS Point of Insertion= Tibial tuberosity Action= Extension of the knee joint
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Vastus Lateralis Point of Origin= Greater trochanter Point of Insertion= Tibial tuberosity Action= Extension of the knee joint
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Vastus Medialis Point of Origin= Intertrochanteric line Point of Insertion= Tibial tuberosity Action= Extension of the knee joint
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Gracilis Point of Origin= Inferior pubic ramus Point of Insertion= Medial condyle of the tibia Action= Adduction of the hip and flexion of the knee
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Sartorius Point of Origin= ASIS Point of Insertion= Medial and anterior tibia Action= Hip flexion and medial rotation of the knee
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Gluteus Medius Point of Origin= Lateral surface of the ilium Point of Insertion= Greater trochanter Action= Abduction of the hip
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Gluteus Maximus Point of Origin= lateral surface of the ilium Point of Insertion=Gluteal tuberosity and iliotibial (IT) band Action=Extension and abduction of thigh at the hip
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Tibialis Anterior Point of Origin= Lateral condyle of the tibia Point of Insertion= Medial cuneiform and 1 st metatarsal Action= Dorsiflexion and inversion of the foot
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings Gastrocnemius Point of Origin= Medial and lateral condyles of the femur Point of Insertion= Posterior calcaneus Action= Plantar flexion
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings