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The Brain- older structures Brainstem-oldest and innermost region Medulla- the control center for your heartbeat and breathing Crossover point- most nerves to and from each side of the brain connecting to the body’s opposite side Thus, the right brain controls the left side of the body and vice versa Thalamus- sits on the top of the brain stem Receives info from all senses except smell
The Brain Cerebellum- means “little brain” How much time has passed since you woke up? How’s your mood? Helps you judge time, discriminate sounds and textures, and control your emotions Coordinates voluntary movement Helps to process and store memories for things we cannot consciously recall
The Limbic System Amygdala Plays a role in emotions Mostly aggression and fear Hypothalamus Influence hunger, thirst, body temperature, and sexual behavior Read pg 38
Cerebral Cortex Cerebral Cortex- thin layer of neural cells that cover the cerebrum (two halves of the brain) Body’s ultimate control and information processing center Enables you to perceive, think, and speak
Cerebral Cortex Structure of the cortex Frontal lobe- involved in speaking and muscle movements and in making plans and judgment Parietal lobe- receives sensory input for touch and body position Occipital lobe- receive info from the visual fields Temporal lobe- receive info from the ears (hearing) Read pg 42-43