Biopsychology

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  • Biopsychology
    • 1. The Nervous System
      • The Nervous System
        • Central Nervous System
          • Spinal Cord-bundle of enclosed nerve fibres which connects nearly all parts of the body with the brain
          • The Brain
            • responsible for coordinating sensation, intellectual and nervous activity
          • recieves info from senses and controls the body's responses
        • network of nerve cells and fibre that helps all parts of the body communicate with each other
        • Peripheral Nervous System
          • somatic nervous system-responsible for carrying sensory and motor info to and from the CNS
          • autonomic nervous system-governs the brain's involuntary activities and is self regulating
            • sympathetic nervous system-involved in responses that help us deal with emergencies
            • parasympathetic-calms the body after an emergency state, involved in energy conservation and digestion
    • 2. Neurons and Synaptic Transmission
      • Sensory Neuron-carry nerve impulses from sensory receptors to the spinal cord and brain,
        • The Action Potential
        • Cell body, dendrites, axon
        • Relay Neurons-allow sensory and motor neurons to communicate with each other
        • Motor neurons-form synapses with muscles and control their contractions
      • Synaptic Transmission-refers to the process by which a nerve impulse passes across the synaptic cleft from one neuron to another
    • 3. The Endocrine System
      • Endocrine Glands
        • Pituitary Gland
          • 'master gland'
          • Anterior Pituitary(front)
            • releases ACTH as a response to stress, LH and FSH important for reproduction
          • Posterior(back) Pituitary
            • releases oxytocin-stimulates contraction of the uterus during childbirth
        • Adrenal Glands
          • Adrenal cortex(outer part)
            • produces cortisol-regulates or supports a variety of important bodily functioning
          • Adrenal Medulla(inner part)
            • produces adrenaline and noradrenaline-help body prepare for fight or flight
          • sit on top of the kidneys
        • Ovaries
          • oestrogen and progesterone
        • Testes
          • produces testosterone
      • network of glands that secrete hormones, uses blood vessels to deliver hormones to their target sites, also works w/ the nervous system to regulate physiological processes
    • 4. Fight or Flight Response
      • Evaluation
      • The Amygdala and Hypothalamus
      • Response to acute(sudden) stressors
      • Response to chronic(ongoing) stressors

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