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Health Chapter 28
Terms in this set (44)
Every infectious disease is caused by one of several types of small microscopic organisms known as _________
Cells and tissues
Pathogens invade the body and attack its ______________
Most pathogens are _____, which are organisms that live in or on another organsim and derive nourishment from it.
Single celled organisms that can live almost anywhere and some produce posions that are harmful to human cells
The smallest known type of infectious agent. HIV is one of the deadliest types of this organism.
Organisms that resemble small bacteria but, like viruses, are able to multiply only by invading the cells of another life form
Typhus and Rocky Mountain Spotted Fever
Rickettsias are passed to humans or animals by bites or feces deposits on the skin and can cause _____________
Single celled organisms that are larger than bacteria and have a more complex cell structure
Simple organisms that can not make their own food. They are saprophytes, organisms that feed off of dead animals, insects, and leaves.
Pathogens may be spread when an uninfected person comes into contact with an infected person
Sexually Transmitted Diseases (STD)
A disease that's spread sexually
_____ may transmit infection to an unborn child
Pathogens spread through the air or by other means of transmission other than direct contact.
Innate Immune System
Your inborn defense provides nonspecific resistance.
Adaptive Immune System
Provides specific resistance.
Your body's natural defenses against infection
Inborn or general defenses against infection. Physical, chemical, body cells, and inflammatory response.
White blood cells that group together to destroy pathogens.
The process by which phagocytes engulf and destroy pathogens
Chemical mediators are released causing the blood vessels to dialate and allow increased blood flow until the pathogens are destroyed.
Type of white blood cells that fight pathogens. Two types: B Cells and T Cells
Enlarge and multiply eventually turning into antibodies. If you encounter the same specific pathogen again, the antibodies are still there to fight
Two main types. Killer T-Cells: Multiply by the presence of abnormal body cells, then they fight to kill the abnormal cells. Helper T-Cells: Aid the activity of the B & Killer T Cells
Viral infection; spread and treated the same way as a cold
Highly contagious bacterial infection that most often affects the lungs
A bacterial infection of the throat
A highly contagious ciral disease characterized by fever and a rash that covers the entire body.
Rubella or German Measles
A viral disease with similar symptoms as measles that causes only a minor infection in children
Inflammation of the brain often caused by a virus mosquitoes carry
An inflammation of the meninges, the membranes that cover the brain and spinal chord
An infectious disease of the central nervous caused by the virus
An inflammation of the liver
The virus in contracted by eating or drinking food contaminated with the virus
Found in the body fluids and is spread by blood and/or sexual contact
The body's natural resistance to many pathogens
The body develops specific, long term anti-bodies to fight pathogens
Infant acquires immunity through its mother while in the womb and shortly after birth
Additional help to establish immunity against specific pathogens
Provides immediate short lived protection against specific disease causing pathogens
Also known as vaccination which involves the introduction to the body of a vaccine
Made from weakened viruses
Killed Virus Vaccine
Causes the body to produce anti-bodies but not as strong as a live virus
Made with chemically treated bacteria toxins
THIS SET IS OFTEN IN FOLDERS WITH...
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