PSYA01H3 Chapter 4: Chapter 4.docx
Document Summary
10-100 billion nerve cells in our brain along with helper cells. Flourens emphasized different parts are responsible for different functions. Donald hebb considered nerve cells are organized into larger units (modules) which are connected to other. Brain has three major functions: controlling behaviour. 2)processing and retaining information we receive from the environment: regulating the body"s physiological needs. Central nervous system (brain and spinal cord) Spinal cord: long thing collection of nerve cells attached to base of brain and running down spinal column. Nerves: bundles of fibres that transmit information in and out of the central nervous system from organs. Peripheral nervous system: the cranial and spinal nerves that are attached to the brain and spinal cord. Cranial nerves: bundle of nerve fibres attached to the base of the brain from face and head. Spinal nerve: bundle of nerve fibres attached to spinal cord and carries messages to muscles and glands.
