Human Defence Responses Flashcards
Your Skin Covers Your Body and Acts as a __________. It Prevents Bacteria and Viruses Reaching the __________ Beneath. If Your Skin is Damaged, the Barrier is __________ but your Body Restores it.
Barrier…Tissues…Broken…
Your Skin Produces Antimicrobial Secretions to Destroy ______________ Bacteria.
Pathogenic.
Healthy Skin is Covered with Microorganisms that Help Keep You Healthy and Act as an Extra Barrier to the Entry of ____________.
Pathogens.
Your Respiratory System is a Weak Link in your _______ Defences.
Body.
Your Nose is Full of Hairs and Produces a Sticky Liquid called ________. The Hair and Mucus Trap Particles in the Air that May Contain ___________ and Irritate the Lungs.
Mucus…Pathogens…
The Trachea and Bronchi Secrete Mucus that ________ Pathogens From the Air. The Lining of the Tubes is Covered in _______ - Tiny Hair-Like Projections From the Cells.
Traps…Cilia…
The Stomach Produces _______ and this Destroys the ___________________ in the Mucus you Swallow.
Acid…Microorganisms…
In Spite of your Body’s ____________ Mechanisms, Some ______________ Still Get Inside your Body.
Defence…Pathogens…
How do Ingesting Microorganisms Protect You Against Disease?
Some White Blood Cells Ingest (Take In) Pathogens, Digesting and Destroying Them so they can’t Make You Ill.
How does Producing Antibodies Protect You Against Disease?
Some White Cells Produce Special Chemicals Called Antibodies. These Target Particular Bacteria or Viruses and Destroy Them.
How does Producing Antitoxins Protect You Against Disease?
Some White Blood Cells Produce Antitoxins. These Counteract (Cancel Out) the Toxins Released by Pathogens.
Different Body ___________ Work Together to Help Protect You From __________.
Systems…Disease…
White Blood Cells Destroy the Cold Viruses and Any Bacteria __________ in the Mucus of your Nose when you have a _______.
Trapped…Cold…
Dead White ________ Cells, Along with the Dead Bacteria and _________, are Removed in the Mucus, Making it Look ________.
Blood…Viruses…Green…
