1. 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

2. Coordination and Regulation of Body Systems ◦ Nervous system.  Conducts nerve impulses maintaining homeostasis (electrochemical). ◦ Endocrine system.  Serves as messaging system maintaining homeostasis (chemical).

3. Nervous & Endocrine Systems

4. Nerve Plexuses ◦ Plexus = “braid” ◦ Nerves supplying the limbs form plexuses when they leave the spinal cord  Cervical  Brachial  Lumbosacral  Lumbar  Sacral

5. Spinal Nerve

9. Nerve Plexuses

10. Cervical Plexus ◦ Formed by spinal nerves C1 – C5  Nerves innervate the neck and shoulder region  Phrenic nerve to the diaphragm

11. Cervical Plexus

12. Brachial Plexus ◦ Formed by spinal nerves C5 – C8 and T1  Nerves innervate the arm and shoulder

13. Brachial Plexus Human Anatomy, 3rd edition Prentice Hall, © 2001

14. Brachial Plexus Human Anatomy, 3rd edition Prentice Hall, © 2001

21. Lumbosacral Plexus Human Anatomy, 3rd edition Prentice Hall, © 2001

22. Lumbar Plexus ◦ Formed by spinal nerves T12 and L1 – L4.  Innervates the medial and anterior portions of the thigh and lower abdominal region

23. Lumbar Plexus Human Anatomy, 3rd edition Prentice Hall, © 2001

27. 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

28. Sacral Plexus