1. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Fundamentals of Anatomy & Physiology SIXTH EDITION Chapter 14, part 2 The Brain and Cranial Nerves

2. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings SECTION 14-3 The Medulla Oblongata

3. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Connects the brain with the spinal cord Contains relay stations and reflex centers Olivary nuclei Cardiovascular and respiratory rhythmicity centers Reticular formation begins in the medulla oblongata and extends into more superior portions of the brainstem Medulla oblongata

4. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.7 The Diencephalon and Brain Stem Figure 14.7a, b

5. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.7 The Diencephalon and Brain Stem Figure 14.7c

6. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.8 The Medulla Oblongata and Pons Figure 14.8a, b

7. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.8 The Medulla Oblongata and Pons Figure 14.8c

8. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings SECTION 14-4 The Pons

9. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Sensory and motor nuclei for four cranial nerves Nuclei that help control respiration Nuclei and tracts linking the cerebellum with the brain stem, cerebrum and spinal cord Ascending, descending and transverse tracts The pons contains

10. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.8 The Medulla Oblongata and Pons Figure 14.8a, b

11. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.8 The Medulla Oblongata and Pons Figure 14.8c

12. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings SECTION 14-5 The Cerebellum

13. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Adjusts postural muscles and tunes on-going movements Cerebellar hemispheres Anterior and posterior lobes Vermis Flocculonodular lobe Superior, middle and inferior cerebellar peduncles link cerebellum with brain stem, diencephalon, cerebrum, and spinal cord Interconnects the two cerebellar hemispheres The cerebellum

14. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.9 The Cerebellum Figure 14.9a

15. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.9 The Cerebellum Figure 14.9b

16. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings SECTION 14-6 The Mesencephalon

17. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings The tectum (roof) contains the corpora quadrigemina Superior and inferior colliculi The mesencephalon contains many nuclei Red nucleus Substantia nigra Cerebral peduncles RAS headquarters The mesencephalon

18. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.10 The Mesencephalon Figure 14.10a, b

19. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings SECTION 14-7 The Diencephalon

20. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Epithalamus Hypothalamus Thalamus The diencephalon is composed of

21. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Final relay point for ascending sensory information Coordinates the activities of the cerebral cortex and basal nuclei The thalamus

22. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.11 The Thalamus Figure 14.11a, b

23. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Controls somatic motor activities at the subconscious level Controls autonomic function Coordinates activities of the endocrine and nervous systems Secretes hormones Produces emotions and behavioral drives Coordinates voluntary and autonomic functions Regulates body temperature Coordinates circadian cycles of activity The hypothalamus

24. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.12a Figure 14.12 The Hypothalamus in Sagittal Section

25. Copyright © 2004 Pearson Education, Inc., publishing as Benjamin Cummings Figure 14.12b Figure 14.12 The Hypothalamus in Sagittal Section