Chapter11 musclespart2marieb
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Transcript of Chapter11 musclespart2marieb
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Pectoral Girdle Upper limb
Pelvic Girdle Lower Limb
Refer to the Handout (Appendicular Musculature) We will emphasize the larger and most
superficial muscles, and those that have a particularly important activity.
Ch 11 Muscles of the Body, Part 2Ch 11 Muscles of the Body, Part 2The Appendicular MusculatureThe Appendicular Musculature
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Anterior Thorax
Deltoid IM injection site
Pectoralis Major and minor
Serratus anterior
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Posterior ThoraxTrapeziusLatissimus dorsiSupraspinatusInfraspinatusSubscapularis
Triceps Long, lateral,
medial heads
Don’t forget the Rotator Cuff
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The Arm, AnteriorAspect
•Biceps Brachii•Two Heads•Origin: Coracoid and Supraglenoid tubercle•Insertion: Radial Tubercle
•Brachialis•Brachioradialis•Digital Flexors
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The Arm, Posterior
Aspect
•Triceps Brachii•Three Heads:
•Long•Lateral•Medial
•Carpal Extensors•Digital Extensors•Extensor retinaculum
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The Hand,Dorsal Aspect
•Extensor retinaculum
•Extensor tendons
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The Hand, Palmar Aspect
•Flexor Retinaculum AKA Transverse Carpal Ligament•Carpal Tunnel
•Irritates the median nerve
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Carpal Tunnel Syndrome
Usually idiopathic Rheumatoid arthritis Genetics RSI??
Swelling of the carpal tunnel compresses the median nerve
Pain, and motor and sensory loss may occur
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The Pelvis
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The Thigh:Anterior View
•Quadriceps Group (4 heads) converge as the Quadriceps Tendon
•Vastus Lateralis•Vastus Medialis•Rectus Femoris•Vastus intermedius
•Iliotibial Tract•Sartorius
•Longest muscle in body
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The Thigh:Posterior View
•Gluteal Group
•Gluteus maximus
•Gluteus medius
•Gluteus minimus
•Hamstrings
•Semimembranosus
•Semitendinosus
•Biceps femoris
•Iliotibial tract
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The Calf:Posterior View
•Gastrocnemius•Medial and lateral heads
•Soleus (Deep to Gastroc-)•Both insert on calcaneus
•Calcaneal (Achilles) tendon
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The Calf:Anterior View
•Tibialis Anterior•The “toe tapper”•Site of shinsplints
•Digital extensors•For the toes
•Extensor Retinaculum•Superior•Inferior
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Foot
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Surface Anatomy p 326
Both muscular and bony
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