Bell Work Describe a neurotransmitter. True or False: A neuron is a cell. What is the myelin?

Neuron Review

CNS vs. PNS

You Need: Brain Diagram The Brain

The Hindbrain Lower portion Medulla – Vital functions Pons – located in front of medulla, regulates body movement, sleep, alertness/attention Cerebellum – Rests under cerebrum, involved in balance and coordination

Hindbrain Image Brain Stem

The Midbrain Located in the middle Vision and hearing Reticular Activating System – Begins in hind, travels to fore, important for attention, sleep, and arousal. Some drugs alter the activity Loud noises waking/alerting

Not Labelled

The Forebrain Thalamus Hypothalamus Sensory center, transmits messages Hypo = below Regulates body temp, stores nutrients, influences motivation and emotion. Hunger/thirst Caring for offspring Aggression

Forebrain Cont’d Limbic System Amygdala Hippocampus Emotion and Aggression Hippocampus Memory Dory from Nemo – damaged LS

Label the Amyg. And Hippo Together

Forebrain

Cerebral Cortex Cerebrum The part that “thinks” Biggest cerebrum is in humans Biggest part of brain Cerebral Cortex Surface that is wrinkly The part that “thinks” Deals with memory, language, perception, complex motor functions.

What makes humans special? Largest cerebrum (based on body size). 2 hemispheres Like a walnut Corpus Callosum connects hemispheres Opposite from where message is sent Right = left, Left = Right

Four Lobes of Cerebral Hemisphere What does hemisphere mean? Occipital Lobe Sight Parietal Perception of “Touch” senses. Temporal Hearing and memory Frontal Reasoning, planning, logic

4 Lobes On Rights

Wrap Up Why do you think each part of the brain is involved in something different?

Right Brain vs. Left Brain