1. Brain Stem

2. Background Midbrain, pons, medulla oblongata
Pathway for ascending and descending tracts,
Many small gray matter areas
Form CRANIAL NERVES
Control breathing and blood pressure

3. Midbrain Extends from mamillary bodies of hypothalamus to pons
Reflex centers involved with vision and hearing

4. Pons Protrudes below midbrain “bridge” Mostly fiber tracts
Involved in control in breathing

5. Medulla Oblongata Most inferior part of brain Merges into spinal cord
Fiber tract area
Regulate visceral activities
Control heart rate, blood pressure, breathing, swallowing, and vomiting

6. Reticular Formation Extends entire length of brain stem
Neurons involves in control of visceral organs
Reticular Activating System-plays a role in consciousness and the awake/sleep cycles