Muscular Anatomy Overview of Major Muscles

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©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. The Motor Unit Dendrites Neuron cell body Muscle fibres Neuromuscular junction Terminal branches Axon hillock Myelin sheath Neurolemma Motor neuron Direction of action potential Motor end plate

©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. The Anatomy of Skeletal Muscle  Muscle fibre looking outward:  Perimysium  Binds muscle fibres together  Epimysium  Sheath enveloping entire muscle  Muscle fibre looking inward:  Endomysium  Sheath of connective tissue surrounding muscle fibre  Sarcolemma  Contains cytoplasm (sarcoplasm)  Myofibrils  Contain actin and myosin  Sarcomeres  Contains myosin and actin Perimysium Muscle fibre Epimysium Endomysium Muscle belly Tendon

©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. Muscle Fibre Z line Sarcomere Sarcoplasmic reticulumSarcolemma Tendon Thin filament Thick filament Muscle belly Muscle Fibre Sarcomere EpimysiumPerimysium Z line Myofibril

©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. The Sliding Filament Theory  Myosin crossbridges (small “bridges” on the thick filaments that extend to the thin filaments)

©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. The Sliding Filament Theory  Myosin crossbridges  Attach, rotate, detach, and re-attach in rapid succession

©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. The Sliding Filament Theory  Myosin crossbridges  Results in the sliding or overlap of the actin and myosin filaments  Causes sarcomere to contract (muscle contraction)

©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. Muscles of the Abdomen Rectus abdominis External oblique Quadratus lumborum (deep)

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©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. Elbow Flexors / Extensors – Anterior Biceps brachii Pronator teres Brachialis Brachioradialis

©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. Elbow Flexors / Extensors – Posterior Triceps brachii (short head) Triceps brachii (long head)

©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. Muscles of the Forearm – Anterior Biceps brachii Pronator teres Brachioradialis Pronator quadratus (deep)

©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. Muscles of the Forearm – Posterior Brachioradialis Triceps brachii (lateral head) Anconeus

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©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. Muscles of the Hip – Anterior Psoas minor Psoas major Iliacus Iliopsoas Tensor fasciae latae Pectineus Sartorius Gracilis Rectus femoris Iliotibial tract (band)

©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. Muscles of the Hip – Posterior Gluteus medius Gluteus minimus Gluteus maximus (cut) Gracilis

©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. Muscles of the Hip – Anterior (adductors) Pectineus (cut) Adductor brevis Adductor longus Adductor magnus Adductor group

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©Thompson Educational Publishing, Inc All material is copyright protected. It is illegal to copy any of this material. This material may be used only in a course of study in which Exercise Science: An Introduction to Health and Physical Education (Temertzoglou/Challen) is the required textbook. Intrinsic Foot Muscles – Intermediate Quadratus plantae