the cerebrum

• the cerebrum has two cerebral hemispheres, they are connected via major tracts of neurons called the corpus callosum. The outermost of the cerebrum conisists of a thin layer of nerve cell bodies called the cerebral cortex.
• The cerebrum is much more highly developed in humans than any organism, it controls the following:

  • Conscious thought
  • Conscious actions, including the ability to override some reflexes
  • emotional responses
  • intelligence, reasoning, judgment, and decision making
  • factual memory
• The cerebral cortex is divided into which 3 sections?

  Sensory areas

  Association areas

  motor areas
• What is the purpose of the sensory areas of the cerebral cortex?

  The sensory areas of the cerebral cortex receive action potentials indirectly from the sensory receptors. the sizes of the regions allocated to receive input from different receptors are related to the sensitivity of the area that inputs are received from.
• what is the purpose of the association areas of the cerebral cortex?

  They compare sensory inputs with previous experience, interpret what the input means, and judge an appropriate response.
• what is the purpose of the motor areas of the cerebral cortex?

  Motor areas send action potentials to various effectors. the size of the regions allocated to deal with different effectors is related to the complexity of the movements needed in the parts of the body. Motor areas on the left side of the brain control the right side of the body, and the motor areas on the right side of the brain control the left side of the body.