Immune System

The response to an infection. Causes the area to redden, swell, and feel warm.

• Fever

• Mucus

• Dilation

• Inflammation

Chemical that causes the blood vessels around the infection to dilate (expand) so that more blood can flow to the infection

• Stomach acid

• Mucus

• Epithelial cells

• Histamines

What are the two types of immune systems?

• Acquired & Adaptive
• Innate & Adaptive

• Innate & Autoimmune
• Red & White Blood Cells

What is phagocytosis?

• WBCs

• When a cells eat other cells

• When a cell collapses

• When a cell releases nutrients

Tags

NGSS.HS-LS2-3

Which of the following secretes histamine?

• B cells
• macrophages
• neutrophils
• mast cells

What category of immune response would sneezing and mucus production fall under?

• Innate Immunity
• Acquired Immunity
• Humoral Immunity
• Cell Mediated Immunity

Bacteria, viruses, parasites and fungi are examples of pathogens

• True

• False

Thymus, Tonsils and Thymus are parts of the

• lymphatic system

• immune system

• lymphatic and immune system

• None of the above

Lymphocytes are

• white blood cells

• all are true

• created by the lymphatic system

• fight infection

What is the body's first line of defense against infection by foreign organisms? 

• antibodies

• lymph nodes

• skin

• white blood cells