click below
click below
Normal Size Small Size show me how
Biology
Last minute section 5
Question | Answer |
---|---|
What do phagocytes do to pathogens? | Engulf and then digest them |
What to lymphocytes produce? | Antibodies |
What do antibodies do? | Lock on to invading pathogens, marking them for destruction |
Along with antibodies, what else is produced in response to a foreign antigen? | Memory cells |
Why do artery walls have to be strong? | They pump blood at high pressure |
What makes artery walls strong? | Thick layers of muscle |
What about a capillaries walls help with diffusion? | They are permeable |
How thick are capillary walls? | One cell thick |
Are the lumen bigger in arteries or veins? | Veins |
What do veins have that prevents the back flow of blood? | Valves |