Chapters 3 & 4 Flashcards
Quiz 2
Infectious Disease
Diseases caused by pathogenic microorganisms.
Pathogen
A disease-causing microorganism that grows in or on the body, damaging tissue, inducing inflammation, and triggering familiar signs and symptoms associated with particular infections.
Contagious/Communicable
Infectious disease transmitted from human to human.
Epidemiology
The study of transmission, occurrence, distribution, and control of disease.
Incidence
The number of new cases of a disease in a population.
Prevalence
The number of existing cases of a disease.
Endemic
A disease that always occurs at low levels in a population.
Epidemic
A disease that occurs at an unusually high number in a given population.
Pandemic
An epidemic that has spread to include several large areas worldwide.
Outbreak
When a disease suddenly occurs in unexpected numbers in a limited area and then subsides.
Notifiable Disease
Diseases under surveillance that must be reported by physicians to the CDC.
Reservoir
The source of an infectious disease.
Horizontal Transmission
Transmission of an infectious disease from a reservoir to a susceptible human.
-Can be direct or indirect.
Fomites
Contaminated inanimate objects.
Vertical Transmission
Route by which infectious disease is transmitted from one generation to the next.
Parenteral
Delivery of disease through routes other than the mouth or rectum.
Nosocomial
Hospital-acquired infection route.
Normal Flora/Microbiota
Microorganisms commonly existing on or within the human body.
Isolation
Controlling the spread of disease by keeping an infectious person away from the healthy population.
Quarantine
The separation of persons who may or may not be infected from the healthy population until the period of infectious risk has passed.
Disinfection
Reducing the risk of infection or contamination.
Capsid
A protein shell around a viral microorganism.
Latent Infection
Condition caused when viruses insert themselves in cells and do not reproduce.
Cell Wall
A rigid layer of organic material surrounding the delicate membrane of a bacteria.
Cocci
Spherical(round)-shaped bacteria.
Bacilli
Rod-shaped bacteria.
Spirilla
Spiral-shaped bacteria.
Spirochetes
Corkscrew-shaped bacteria.
Vibrios
Comma-shaped bacteria.
Gram Stain
Staining technique that permits the identification of a bacteria.
Endotoxin
Potent toxin from certain bacteria that causes life-threatening shock.
Amoeboid
Protozoa that moves via pseudopodia.
Flagellate
Protozoa that move via whip-like flagella.
Ciliate
Protozoa that move using hairlike cilia.
Sporozoan
Protozoa that are immobile.
Pseudopodia
Cell membrane extensions used for locomotion of phagocytosis.
Cilia
Short, hairlike projections used for movement.
Chitin
Polysaccharide in the cell walls of some fungi.
Mycelia
Filaments in fungi specialized for absorption of nutrients.
Spores
Microscopic fungal reproductive structures that can induce allergies.
Mycoses
Fungal infections.
Infestation
Infections involving wormlike parasites known as helminths.
Ascaris
Large roundworm intestinal parasite.
Hookworms
Intestinal parasitic roundworm.
Prion
An infectious microorganism comprised solely of protein.
Antibiotics
Drugs used to treat bacterial infections.
Antibiotic Resistance
Drug resistance that allows bacteria to adapt and thrive despite the medicine.
Nucleic Acid Analogues
Antiviral medications that mimic DNA/RNA bases but have no functions of the virus, causing incorrect replication.
Emerging Infectious Diseases
New infection or an uncommon infection that is increasing in incidence.
Re-emerging Infectious Diseases
Diseases increasing in prevalence after being uncommon.
Metastasize
Spread of cancer throughout the body
Tumor/Neoplasm
Abnormal growth of tissue that is a result of uncontrolled cell growth.
Benign
Noncancerous neoplasm/tumor.
Malignant
A growth that spreads to invade surrounding tissue and may metastasize to other parts of the body.
Polyp
A benign tumor that projects from an epithelial surface.
Carcinoma
Type of cancer affecting epithelial tissues, skin, and mucous membranes lining body cavities, or glandular tissue such as breast, liver, or pancreas.
Sarcoma
Type of cancer affecting the supportive tissues such as muscle, bone, or cartilage.
Carcinogens
Cancer-causing agents or substances.