Signs of disease or injury.

• symptoms

• experimental design

• vital signs

• case notes

Excess mucus and secretions in the air passages of the nose

• symptoms

• nasal congestion

• lesion

• tonsils

Part of an area on the body that has suffered damage through injury or disease

• nasal congestion

• lesion

• wheezing

• glands

Lymph nodes in the neck that are small, bean-shaped organs that help the body recognize and fight germs, infections, and other foreign substances.

• nasal congestion

• lesion

• wheezing

• glands

Lymph nodes located in the back of the throat.

• tonsils

• lesion

• wheezing

• glands

High-pitched whistling sound during breathing. It occurs when air moves through narrowed breathing tubes in the lungs.

• tonsils

• lesion

• wheezing

• glands

In disease, a factor, such as a microorganism or a chemical substance, that can impact the development of  a disease or illness. 

• symptoms

• lesions

• agents

• tonsils

Which of the following is NOT true about bacteria?

• Single-celled organisms that do not rely on a host.

• Can be seen with a school microscope

• The only kind of bacteria is bad bacteria.

• Examples are e. coli and streptococcus pyogenes.

Which of the following is NOT true about viruses?

• They cannot be seen with school microscopes.

• Tiny infectious agents that can only multiply when they are inside a host, the living cells of plants, animals, or bacteria.

• An example is influenza.

• They are bigger than bacteria.

Which of the following is NOT true about fungi?

• Athlete's foot is an example.

• Fungi grows best in cold, dry environments.

• Organisms such as yeasts or molds that reproduce quickly in moist, humid environments.

• We can eat fungi, like mushrooms.