Unit 2 - stress

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Stress Related illnesses

  • Alopecia (Hair Loss)
  • Chest infections
  • Eczema
  • Migrane
  • High blood pressure (Hypertension)
  • Grey hair
  • Heart disease
  • Cold
  • Mental illness
  • Sickness
  • Fever
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Hypothalamus - Small coned shaped brain region responsible for higher order functioning.

Acute Stress - Short term e.g. Exams

Chronic Stress - Long lasting

Fight or Flight - An Human/Animal is energised to either fight or run away

SAM - Sympathetic Adrenal System

ANS - Autonomic Nervous System

SNS-Sympathetic Nervous System

ACTH-Adrenocorticotropic Hormone

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Immune System- Our body's defence mechanism

White blood cell - Leukocytes


  • 1st line of defence
  • It surrounds and ingest



  • Matures in the thymus gland
  • Could carry disease
  • Locks onto the cell and then multiplies and destroys it


  • Matures in the bone marrow
  • Slows down antigen for phagocytes
  • Produces antibodies
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