Immunology take 2 Flashcards
Name the two types of immuinity
Innate
Aquired
Name the first barrier of the body.
The external barrier
Give some examples of external barriers
Sin
Mucous
Tears
Saliva
Urine
Describe the chemical composition of sweat
High NaCl
Lysosomes
What does the high NaCl conc. of sweat mean?
It inhibits the growth of microorganisms
Describe the chemical composition of the inside of the stomach
Digestive ezymes
Gastric acid w a pH of 2
Give an example of an enzyme found in the stomach.
Pepsin
Give three examples of components of innate immuinity.
Phagocytes
Complement cells
Natural killer cells
Give two examples of components of acquired immunity.
Antibodies
Cytotoxic cells
Which cells do antibodies come from?
B cells
Which cells differentiate to cytotoxic cells?
T cells
Describe the innate immune response
Rapid
Non- specific
No memory
Describe the acquired immune response
Slower
Specific
Good memory
What is the function of phagocytes?
To recognise, track and engulf and destroy antigens.
Which phagocyte is the most abundant WBC?
Neutrophils