Bio-Psych

• Nervous System


  Network of cells and is our plug internal
• Angstere


  To two job collect, process and
• Nervous system


  Made up of different agents, glands & cuts
• Divisions of the nervous system

  • Central and peripheral
  • Somatic and autonomic (ANS)
• Central Nervous System (CNS)


  Integrates, coordinates and regulates
• Peripheral Nervous System (PNS)


  Messages to and from the central nervous system
• Somatic Nervous System


  Responsible for voluntary movement such as walking
• Autonomic Nervous System (ANS)


  Responsible for vital functions like breathing, digestion and the stress response
• Sympathetic Branch


  Right of flight, conserve & restore body energy when relaxed
• Parasympathetic Branch


  Rest and digest, restore and recover
• Gland


  An organ which releases specific hormones for use in the body
• Hormone


  A chemical message released by glands into the bloodstream
• Endocrine system


  Secretes hormones to regulate many bodily functions and provide chemical communication
• Glands


  • Pituitary
  • Adrenal
  • Ovaries
  • Testes
• Pituitary Gland


  Master gland that releases hormones which encourage other glands to release their hormones
• Adrenal Gland


  Releases adrenaline which causes physiological changes in the fight or flight response
• Fight or flight response


  Humans' natural instinct to either fight or flee when faced with a threat
• Fight or flight response

  1. Stressor identified by hypothalamus

  2. Sympathetic nervous system activated

  3. Adrenaline and noradrenaline released

  4. Physiological changes prepare body for action
• Role of adrenaline


  Increases respiration, heart rate, diverts blood to muscles to prepare body physically and cognitively for action
• The parasympathetic nervous system returns the body to normal after the stressor has been removed