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Punch biopsy Parasympathetic nervous system Noradrenaline NK cell activity Antigen Antibody

Punch biopsy Parasympathetic nervous system Noradrenaline NK cell activity Antigen Antibody. Punch biopsy – a small segment of skin is removed causing a bruise on the skin Parasympathetic nervous system – returns the animal to a state of relaxation

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Punch biopsy Parasympathetic nervous system Noradrenaline NK cell activity Antigen Antibody

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  1. Punch biopsy • Parasympathetic nervous system • Noradrenaline • NK cell activity • Antigen • Antibody

  2. Punch biopsy – a small segment of skin is removed causing a bruise on the skin • Parasympathetic nervous system – returns the animal to a state of relaxation • Noradrenaline – a neurotransmitter, a substance released from the neuron activating (arousing) the organs to prepare for ‘fight or flight’ • NK cell activity - is a major component of the innate immune system. NK cells play a major role in the rejection of tumors and cells infected by viruses • Antigen – a foreign substance in the body, e.g. Virus • Antibody – neutralises the effect of the antigen

  3. Exam Question Outline and evaluate research into the link between stress and immune system functioning (8 marks) • Outline research (4 marks) • Evaluate research (4 marks) – Confounding variables, gender and age, Validity

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