Fight or flight

• What is the main function of the endocrine system?

  Regulate bodily functions through hormones
• Why was the fight or flight response adaptive in our evolutionary past?

  It provided energy to deal with stressors
• Why might the fight or flight response not be adaptive in modern times?

  Modern stressors often cannot be fought or fled
• Which nervous system is involved in the stress response?

  The sympathetic nervous system
• What do the adrenal glands produce that is central to the stress response?

  Adrenaline and noradrenaline
• What are the effects of adrenaline and noradrenaline during stress?

  • Increases heart rate
  • Raises blood pressure
  • Rapid breathing
  • Releases blood sugar for energy
• What does the amygdala do during a stressful situation?

  It sends a distress signal to the hypothalamus
• How does the hypothalamus communicate with the body during stress?

  Through the sympathetic nervous system
• What are the two systems involved in the body's response to stress?

  • Acute (sudden stressor)
  • Chronic (ongoing stressors)
• What happens in the body during acute stressors?

  The sympathetic nervous system is activated
• What does the adrenal medulla release during acute stress?

  Adrenaline into the bloodstream
• What physiological changes occur due to adrenaline release?

  Heart rate and blood pressure increase
• What role does the parasympathetic nervous system play after stress?

  It calms the body down
• What system does the hypothalamus activate for chronic stressors?

  The HPA axis
• What does the hypothalamus release during chronic stress?

  Corticotrophin-releasing hormone (CRH)
• What hormone does the pituitary gland release in response to CRH?

  Adrenocorticotrophic hormone (ACTH)
• What does ACTH stimulate the adrenal glands to release?

  Cortisol
• What is the effect of cortisol on the body?

  Provides energy and lowers pain sensitivity
• What is the topic being introduced in this material?

  Biopsychology
• What does biopsychology build upon?

  The biological approach covered in previous topics
• What are the main areas explored in biopsychology?

  Nervous system, endocrine system, brain functions
• What is the fight or flight response associated with?

  The role of adrenaline
• What is the structure and function of neurons related to?

  Synaptic transmission
• What does hemispheric lateralization refer to?

  Specialization of brain functions in hemispheres
• What are the types of biological rhythms mentioned?

  Circadian, infradian, ultradian rhythms
• Why do students panic at the mention of biopsychology?

  They think it will be difficult
• How can understanding key terminology help in biopsychology?

  It simplifies understanding of the topic
• What will be provided at the end of the video?

  Retrieval practice questions
• What is the purpose of the free worksheet mentioned?

  To help structure your notes
• What does the nervous system do?

  It carries messages to and from the brain
• What are the two main parts of the nervous system?

  Central nervous system and peripheral nervous system
• What is the central nervous system made up of?

  Brain and spinal cord
• What does the peripheral nervous system do?

  Transmits information to and from the CNS
• What does the somatic nervous system control?

  Conscious perception and voluntary movement
• What is the role of the autonomic nervous system?

  Controls involuntary body functions
• What are the two parts of the autonomic nervous system?

  Sympathetic and parasympathetic nervous systems
• What does the sympathetic nervous system prepare the body for?

  Action in fight or flight response
• What is the function of the parasympathetic nervous system?

  Calms the body and conserves energy
• How does the endocrine system communicate?

  Through hormones released into the bloodstream
• What is the pituitary gland often called?

  The master gland of the endocrine system