Flashcards in Diseases Deck (44)
What is Pathology?
The study of diseases
What are the types of diseases?
Infectious diseases, Nutrient deficiency, Allergies, Hereditary diseases.
What is a pathogen?
a bacterium, virus, or other microorganism that can cause disease.
What is virulence?
the strength of a pathogen
What is the lifespan of a pathogen?
Usually 14 days
What is a host?
A place where a pathogen goes to fuck shit up
What is resistance?
The host's defense against the pathogen.
Does an aging pathogen get weaker or stronger?
Does an aging host get weaker or stronger?
What will be the conditions if both the host and pathogen are strong?
The host will get pretty sick, but they will have a fast recovery.
What is the most important type of disease?
What causes infections?
Microorganisms like viruses, bacteria, fungi, and protozoa.
How are fungi harmful to organisms?
They cause skin diseases in humans and and very dangerous to plants.
What is the cure for nutrient deficiency?
Intaking more of the nutrient that the person needs.
What is an example of nutrient deficiency?
What are allergies?
Reactions of organisms to irritating environmental substances.
What are some extreme cases of allergies?
hay fever, hives, death
What are hereditary diseases?
genetically passed diseases. (ie. hemophillia)
What are the types of defense mechanisms?
Natural defense and artificial defense
What is natural defense?
a body defending itself by itself
What is artificial defense?
A body being defended from the outside
What is an antibiotic?
A chemical made by a living microorganism that defeats other bacteria.
What is and example of an antibiotic that doesn't work anymore?
Penicillin because of bacterial evolution
What are the three types of natural defense?
Mechanical barriers, phagocytes, and the immune system.
What are some mechanical barriers?
Unbroken skin, mucus, sneezing, crying, coughing, sweating, spitting, etc.
What are phagocytes?
A type of white blood cell by which pathogens are caught.
How does phagocytosis work?
the cell creates extensions called pseudopods and eats the pathogen up by surrounding the pathogen with the merging pseudopods. The pathogen is stored in the food vacuole and is digested by fusing the pathogen with the lysosomes.
What are lymphocytes?
Another type of white blood cell that produces proteins called antibodies.
What are antibodies?
proteins that kill bacteria