Chapter 18 Flashcards
A disease the can be passed to a person from another person, animal, or object
Communicable disease
Any condition that interferes with the proper functioning of the body or mind
Disease
Disease causing organisms that are so small the cam only be seen through a microscope
Pathogen
Condition that occurs when pathogens enter the body, multiply, and cause harm
Infection
The smallest pathogens
Virus
Tiny one-celled organisms
Bacteria
Organisms that are more complex than bacteria but cannot make their own food
Fungi
One-celled organisms that are more complex than bacteria
Protozoa
An organism, such as an insect, that transmits pathogens
Vector
Cleanliness
Hygiene
Combination of body defenses mad up of cells, tissues, and organs that fight off pathogens and disease
Immune system
Body’s ability to resist the germs that cause a particular disease
Immunity
Body’s response to injury or disease, resulting in a condition of swelling, pain, heat, and redness
Inflammation
Secondary circulatory system that helps the body fight pathogens and maintains its fluid balance
Lymphatic system
White blood cells in the lymphatic system
Lymphocytes
Any substance released by invading pathogens
Antigen
Proteins that attach to antigens, keeping them from harming the body
Antibodies
Preparation of dead or weakend pathogens that causes the immune system to produce antibodies
Vaccine
Length of time that a particular disease can be spread from person to person
Contagious period
Viral disease characterized by a severe sore throat and swelling of the lymph glands in the neck and around the throat area
Mononucleosis
Viral disease of the liver characterized by yellowing of the skin and the whites of the eyes
Hepatitis
Bacterial disease that usually affects the lungs
Tuberculosis
Serious inflammation of the lungs
Pneumonia
Sore throat caused by streptococcal bacteria
Strep throat
Infections that are spread from person to person through sexual contact
STD
Virus that causes AIDS
HIV
Deadly disease that interferes with the body’s natural ability to fight infection
AIDS
Infection that rarely occurs in a healthy person
Opportunistic infection
Person who appears healthy but is infected with HIV and can pass it to others
Carrier
