Immune System

leukocytes engulf and break down pathogens and debris

• Pseudopodia

• Pinocytosis

• Diapedesis

• Phagocytosis

primary mechanical barrier of human body

• skin

• mucous membranes

• enzymes

• antibodies

Slimy substance that traps pathogens

• plasma

• mucus

• lymph

• leukocytes

Main job of immune system

• Maintain optimal blood pressure

• Create a mechanical barrier

• Release antibodies

• Protect body from pathogens

Anything that triggers an immune response is a/n

• lymph cell

• antigen

• antibody

• neutrophil

What do scientists call bacteria and viruses that can make people sick?  

• diseases
• vaccines
• antibodies
• pathogens

 Like all other body systems, the immune system helps the body maintain homeostasis.  Which statement best describes how the immune system does this?  

• it protects other organs and tissues from infection and disease
• it breaks down food to provide cells with nutrients
• it gathers information through the senses and controls all other body systems
•  it transports oxygen and carbon dioxide

Tags

NGSS.HS-LS1-3

What do B cells produce?

• antigens

• macrophages

• T cells

• plasma and memory cells

First recognizes foreign body and eats it and displays it to the other cells

• Macrophage

• T Cells

• B Cells

• Erythrocyte

Which is an example of passive immunity?

• You have been infected
• You have been vaccinated
• You made antibodies
• You got your mother's antibodies