Health Unit 5

B Cell

These are formed in the bone marrow.

T-Cell

Are develop in the thymus gland.

Viruses

Are the smallest and simplest disease causing organisms.

Bacteria

Tiny one-celled organism that live nearly everywhere.

Fungi

Primitive life-form, such as mold or yeasts, that can not make their own food.

Protozoa

One-celled organisms that have a more complex structure than bacteria.

Lymphatic System

Secondary circulatory system that helps the body fight pathogens and maintain its fluid balance.

Immune System

Combination of body defenses made up of cells, tissues, organs that fight off pathogens.

Nonspecific Immune Response

Immunity involves barriers that keep harmful materials from entering your body. These barriers form the first line of defense in the immune response.

Inflammation

Response to injury, or disease resulting in a condition of welling, pain, heat and redness.

Lymphocytes

Special white blood cells in the lymph (B cells, T cells and NK cells)

Antibodies

Proteins that attach to antigens, keeping them from harming the body

Antigens

Substances that sends the immune system into action

Vaccine

A preparation of dead or weakened pathogens that is injects into the body to cause the immune system to produce antibodies

Noncommunicable

A disease that cannot be spread from person to person

Inflammatory Response

A non-specific reaction to tissue damage caused by injury or infection.

congenital disorders

Disorders that are present when the baby is born.

Cancer

A disease characterized by the rapid and uncontrolled growth of abnormal cell.

Tumor

Abnormal mass of tissue that has no natural role in the body

Benign

Non-cancerous

Malignant

Cancerous

Metastasis

The spread of cancer from the point where it originated to other parts of the body

Remission

A period of time when symptoms disappear

Allergen

A substance that causes an allergic reaction

Allergy

Abnormal immune reaction to an ordinarily harmless substance

Degenerative disease

Is a disease that causes breakdown in body cells, tissues, and organs as it progresses

Congenital Disorders

All disorders that are present when the baby is born

What type of barrier would the skin be considered?

Physical

What type of barrier would our saliva and stomach acid be considered?

Chemcial

Germs

Organisms that are so small that they can be seen only through a microscope

Pathogens

Germs that are responsible for causing diseases

Infections

A condition that occurs when pathogens enter the body, multiply and damage body cells

Communicable Disease

A disease that can spread to a person from another person, an animal or an object

Disease

Any condition that interferes with proper functioning of the body or mind.