Muscular System
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Muscular System



Muscular System for occupational therapy students

Muscular System for occupational therapy students



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Muscular System Muscular System Presentation Transcript

  • Muscular Systemfor students of occupational therapy Anatomy & physiology 2 Lecturer: Mohammed Subhi El-Lulu
  • Muscle Types Skeletal Cardiac Smooth2 Mohammed Subhi El-Lulu
  • Skeletal muscle characteristics Attach bone by tendon Many nuclei Striated Voluntary Surrounded By C.T3 Mohammed Subhi El-Lulu
  • Function of Skeletal Muscle Produce Movement Maintain Posture Stabilize Joint Generate Heat4 Mohammed Subhi El-Lulu
  • Naming of skeletal muscle Size Location Direction Origin & Insertion Shape No. of Origins5 Mohammed Subhi El-Lulu
  • 1- Direction of muscle Relative to the Midline RECTUS means parallel to midline • Rectus Abdominus TRANSVERSE means perpendicular to midline • Transverse Abdominus OBLIQUE means diagonal to midline • External Oblique6 Mohammed Subhi El-Lulu
  • 2- Location of muscle Structure near which a muscle is found Muscle near frontal bone = Frontalis Muscle near the Tibia = Tibialis anterior7 Mohammed Subhi El-Lulu
  • 3- Size of muscle MAXIMUS means largest • Gluteus Maximus MINIMUS means smallest • Gluteus Minimus LONGUS means longest • Fibularis Longus BREVIS means short • Fibularis Brevis TERTIUS means shortest Fibularis Tertius8 Mohammed Subhi El-Lulu
  • 4- Number of origins of muscleNumber of tendons of origin BICEPS means two • Biceps Brachii TRICEPS means three • Triceps Brachii QUADRICEPS means four  Quadriceps Femoris9 Mohammed Subhi El-Lulu
  • 5- Shape of muscle  DELTOID means having a triangular shape  TRAPEZIUS means having a trapezoid shape  SERRATUS means having a saw-toothed shape (Serratus Ant.) RHOMBOIDEUS meanshaving a diamond shape(Rhomboid Major 10 Mohammed Subhi El-Lulu
  • 6- Origin & Insertion (Origin): attached to less or immovable bone. (Insertion): attached to the movable bone.  STERNOCLEIDOMASTOID: attaches to the Sternum, Clavicle, and Mastoid Process  ILIO COSTALIS: attaches to the ilium & ribs 11 Mohammed Subhi El-Lulu
  • Function of muscleNAME ACTION EXAMPLEFLEXOR Decrease ang’hile at a joint Flexor Carpi RadialisEXTENSOR Increase angle at a joint Extensor Carpi UlnarisABDUCTOR Move bone away from midline Abductor Pollicis LongusADDUCTOR Move bone toward midline Adductor LongusLEVATOR Produces upward movement Levator ScapulaeDEPRESSOR Produces downward movement Depressor Labii InferiorisSUPINATOR Turn palm upward/anteriorly SupinatorPRONATOR Turn palm downward/posteriorly Pronator Teres12 Mohammed Subhi El-Lulu
  • Body MusclesExtremity Movement
  • 6 muscle groups of head and neck Eye Facial Mastication Tongue Neck Pharynx14 Mohammed Subhi El-Lulu
  • 15 Mohammed Subhi El-Lulu
  • Muscles of vertebral columnSpinal Flexor TransversospinalisSuperficial Spinal Extensor Spinalis group Longissimus group Iliocostalis groupDeep Spinal Extensor Semispinalis group Multifidus muscle Interspinalis muscles Intertransversarii muscles Rotatores musclesOblique Muscles compress underlying structures rotate vertebral columnRectus Muscles flex vertebral column oppose erector spinae 16 Mohammed Subhi El-Lulu
  • 17 Mohammed Subhi El-Lulu
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  • 19 Mohammed Subhi El-Lulu
  • 6 muscles that position the Pectoral GirdleTrapezius Rhomboid Subclavius • Serratus • Levator • Pectoralis Scapulae Minor20 Mohammed Subhi El-Lulu
  • Trapezius, Rhomboid, Levator Scapulae21 Mohammed Subhi El-Lulu
  • Serratus, Pectoralis minor22 Mohammed Subhi El-Lulu
  • Subclavius23 Mohammed Subhi El-Lulu
  • Muscles that move the Arm Deltoid Subscapularis Supra Teres major spinatus Rotator Cuff Infraspinatus Latissimus Teres minor dorsi Coraco brachialis24 Mohammed Subhi El-Lulu
  • Deltoid “major abductor”25 Mohammed Subhi El-Lulu
  • Supraspinatus “assists deltoid”26 Mohammed Subhi El-Lulu
  • Subscapularis & teres major“medial rotation at shoulder27 Mohammed Subhi El-Lulu
  • Infraspinatus & teres minor“lateral rotation at shoulder”28 Mohammed Subhi El-Lulu
  • Coracobrachialis“flexion & adduction at shoulder”29 Mohammed Subhi El-Lulu
  • Pectoralis major “flexion of shoulder”30 Mohammed Subhi El-Lulu
  • Latissmus dorsi“Extension of shoulder joint”31 Mohammed Subhi El-Lulu
  • Rotator Cuff32 Mohammed Subhi El-Lulu
  • 13 muscles that move Forearm & Hand • Biceps brachii “flex elbow, stabilize joint”A • Triceps brachii “extend elbow” • Brachialis and brachioradialis “flex elbow”B • Anconeus “opposes brachialis” • Palmaris longus ”flex wrist” • Flexor carpi ulnaris ”flex/ adduct wrist”C • Flexor carpi redialis “flex/ abduct wrist” • Extensor carpi radialis “extend/ abduct wrist”D • Extensor carpi ulnaris “extend/ adduct wrist” • Pronator teres and supinator “rotate radialis”E • Pronator quadratus “assist pronator teres”33 Mohammed Subhi El-Lulu
  • 34 Mohammed Subhi El-Lulu
  • Biceps brachii “flex elbow, stabilize joint”35 Mohammed Subhi El-Lulu
  • Triceps brachii “extend elbow”36 Mohammed Subhi El-Lulu
  • Brachialis and brachioradialis “flex elbow”37 Mohammed Subhi El-Lulu
  • Anconeus “opposes brachialis”38 Mohammed Subhi El-Lulu
  • Palmaris longus ”flex wrist”Flexor carpi ulnaris ”flex/ adduct wrist”Flexor carpi redialis “flex/ abduct wrist39 Mohammed Subhi El-Lulu
  • Extensor carpi radialis “extend/ abduct wrist”Extensor carpi ulnaris “extend/ adduct wrist”40 Mohammed Subhi El-Lulu
  • Pronator teres and supinator “rotate radialis”Pronator quadratus “assist pronator teres”41 Mohammed Subhi El-Lulu
  • Muscles that move the hand and figures42 Mohammed Subhi El-Lulu
  • Posterior Extensor Retinaculum43 Mohammed Subhi El-Lulu
  • Anterior Flexor Reticulum44 Mohammed Subhi El-Lulu
  • Muscles that move Lower Limb45
  • Thigh and Gluteal MusclesoCover lateral surface of ilia. Gluteus maximus:  largest, most posterior gluteal muscle  produces extension and lateral rotation at hip Tensor fasciae latae:  works with gluteus maximus  stabilizes iliotibial tract Gluteus medius and gluteus minimus:  originate anterior to gluteus maximus insert on trochanter 46 Mohammed Subhi El-Lulu
  • Muscles of Thigh47 Mohammed Subhi El-Lulu
  • Trochanter48 Mohammed Subhi El-Lulu
  • (6) Lateral Rotators (Piriformis, Obturator)49 Mohammed Subhi El-Lulu
  • Adductors of Thigh50 Mohammed Subhi El-Lulu
  • Adductors of Thigh Pectineus Gracilis51 Mohammed Subhi El-Lulu
  • Muscles thatmove the Leg Flexors of Knee Biceps femoris Semimembranosus- Semitendinosus Sartorius: Popliteus:52 Mohammed Subhi El-Lulu
  • Muscles thatmove the Leg Extensors of KneeQuadriceps Femoris 3 vastus Rectus femoris53 Mohammed Subhi El-Lulu