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Department of Human Anatomy The functional Anatomy of the Nervous (peripheral), Endocrine, Lymphatic and Immune Systems The State Medical and Pharmaceutical University “Nicolae Testemitanu” Lecturer Globa Lilian
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Coordination and Regulation of Body Systems ◦ Nervous system. Conducts nerve impulses maintaining homeostasis (electrochemical). ◦ Endocrine system. Serves as messaging system maintaining homeostasis (chemical).
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Nervous & Endocrine Systems
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Nerve Plexuses ◦ Plexus = “braid” ◦ Nerves supplying the limbs form plexuses when they leave the spinal cord Cervical Brachial Lumbosacral Lumbar Sacral
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Spinal Nerve
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Nerve Plexuses
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Cervical Plexus ◦ Formed by spinal nerves C1 – C5 Nerves innervate the neck and shoulder region Phrenic nerve to the diaphragm
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Cervical Plexus
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Brachial Plexus ◦ Formed by spinal nerves C5 – C8 and T1 Nerves innervate the arm and shoulder
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Brachial Plexus Human Anatomy, 3rd edition Prentice Hall, © 2001
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Brachial Plexus Human Anatomy, 3rd edition Prentice Hall, © 2001
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Lumbosacral Plexus Human Anatomy, 3rd edition Prentice Hall, © 2001
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Lumbar Plexus ◦ Formed by spinal nerves T12 and L1 – L4. Innervates the medial and anterior portions of the thigh and lower abdominal region
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Lumbar Plexus Human Anatomy, 3rd edition Prentice Hall, © 2001
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Sacral Plexus ◦ Formed by spinal nerves L4 and L5, and S1 and S2 Innervates the posterior portion of the hip, thigh, and leg, and the genital region Sciatic nerve
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Sacral Plexus
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