The General Defence System (Leaving Cert Biology): Flashcards
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Practise the cards
15 cards from this deck
Pathogens
Pathogens
Disease-causing organisms
Two methods of defence against pathogens
Two methods of defence against pathogens
General and specific
Body's first line of defence
Body's first line of defence
General defence system
Skin's role in general defence
Skin's role in general defence
Physical barrier to stop pathogens entering
Sebaceous glands produce
Sebaceous glands produce
Sebum (prevents skin cracking)
Mucus membranes line which body systems
Mucus membranes line which body systems
Breathing, reproductive, and digestive tracts
Type of acid in stomach that kills pathogens
Type of acid in stomach that kills pathogens
Hydrochloric acid
Cilia function in respiratory system
Cilia function in respiratory system
Beat to move mucus up respiratory system
Number of complement proteins in blood plasma
Number of complement proteins in blood plasma
About 30 proteins
What interferons prevent
What interferons prevent
Viral multiplication
Process where phagocytes engulf pathogens
Process where phagocytes engulf pathogens
Phagocytosis
Histamine causes blood vessels to
Histamine causes blood vessels to
Dilate (leading to redness, heat, swelling)
Antihistamines' function
Antihistamines' function
Block the effects of histamine
How fever stops bacteria and viruses
How fever stops bacteria and viruses
Denatures their enzymes
Where lysozyme is found
Where lysozyme is found
Tears and saliva