Exam 6: Mechanisms of Disease

One sign of measles is the rash that it sometimes causes.

Which of the following pathogens are considered nonliving?

Describe a bacterium, and list the ways in which a bacterium can be classified.

An epidemic usually involves more people than a pandemic.

Match each term with its corresponding definition or description. -A tumor that remains localized in the tissue from which it arose

Explain the difference between a symptom and a sign, and give an example of each.

The fungus that causes athlete's foot is a parasite, and the person who has the condition is the host.

Match each term with its corresponding definition or description. -Refers to a type of tumor that spreads to other parts of the body

Define or explain the following terms: neoplasm, benign, malignant, metastasis, carcinoma, and sarcoma.

Increasing age is a risk factor in all diseases.

A disease can be described as a fluctuation in the homeostasis of the body that goes beyond what is considered a normal fluctuation.

Organisms that cause opportunistic infections require specific environmental conditions before they can become infectious.

Another word for a neoplasm is a tumor.

Rickettsia is an example of a small bacterium.

Which type of pathogen is a microscopic living organism that does not have a nucleus?

Oncogenes are cancer-causing genes.

Match each term with its corresponding definition or explanation. -The spread of a disease to a very large number of people in a large or worldwide geographical area

Mad cow disease is caused by a

Edema occurs when water leaves the blood vessels and enters the tissues.

Explain why bacteria that form spores are potentially more dangerous than bacteria that do not form spores.