Objective 14 15 The Cerebral Cortex Alexis Tate

Objective 14 & 15 The Cerebral Cortex Alexis Tate Sonnea Spruiell Structure of the Cortex

The Cerebral Cortex • Older Brain networks sustain basic life functions and enable memory, emotions, and basic drives. • Newer neural networks within the cerebral hemisphere from specialized work teams the enable our perceiving, thinking and speaking. Alexis Tate Sonnea Spruiell

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The Cerebral Cortex • The Cerebral Cortex is an intricate covering of interconnected neural cells that, like bark on a tree, forms a thin surface layer on your cerebral hemispheres. • With the expansion of the cerebral cortex, tight genetic controls relax and the organisms adaptability increases. • It is your body’s ultimate control and information processing center. Alexis Tate Sonnea Spruiell

Structure of the Cortex • Eighty percent of the brain’s weight lies in the left and right cerebral hemispheres. Filled with axon connections to the brains surface and other regions. • The Cerebral cortex contains 20 to 23 billions nerve cells and supporting these billions of nerve cells are nine times as many spidery glial cells. Alexis Tate Sonnea Spruiell

Structure of the Cortex • Glial cells- glue cells that guide neural connections, provide nutrients and insulating myelin, and mop up ions and neurotransmitters. • Neurons can not feed or sheathe themselves. So the glial cells a learning and things. Alexis Tate Sonnea Spruiell

Structure of the Cortex Each brain hemisphere is divided into four lobes • Frontal lobes (behind your forehead) • Parietal lobes (at the top and to the rear) • Temporal lobes (at the back of your head) (on the sides of your head, • Occipital lobes just above your ears) Alexis Tate Sonnea Spruiell

Male brain Female brain Alexis Tate Sonnea Spruiell