Chpt. 14 lesson 1-4 health

noncommunicable disease

a disease that cannot be spread from person to person

Chronic

Present continuously on and off over a long period of time

allergy

an extreme sensitivity to a substance

allergens

Substances that cause allergic responses

Pollen

Powdery substance released by the flowers of some plants

histamines

the chemicals that the immune cells release to draw more blood and lymph to the area affected by the allergen

antihistamines

medicines that reduce the production of histamines

asthma

a chronic inflammatory disorder of the airways that causes air passages to become narrow or blocked, making breathing difficult

bronchodilators

reliever medications that relax muscles around the air passages

Arteriosclerosis

a group of disorders that cause a thickening and hardening of the arteries

Atherosclerosis

a condition that occurs when fatty substances build up on the inner lining of the arteries

heart attack

occur when the blood supply to the heart slows or stops and the heart muscle is damaged

hypertension

a disease in which the pressure of the blood on the walls of the blood vessels stays at a level that is higher than normal

stoke

a serious condition that occurs when an artery of the brain breaks or becomes blocked

Angioplasty

a surgical procedure in which an instrument with a tiny ballon, drill bit, or laser attached is inserted into a blocked artery to clear a blockage

cancer

a disease that occurs when abnormal cells multiply out of control

tumor

a group of abnormal cells that form a mass

benign

not cancerous

malignant

cancerous

risk factors

characteristics or behaviors that increase the likelihood of developing a medical disorder or disease

carcinogen

a substance that can cause cancer

biopsy

the removal of a sample of tissue from a person for examination

radiation therapy

X rays or other forms of radiation to kill cancer cells

chemotherapy

the use of powerful medicines to destroy cancer cells

diabetes

a disease that prevents the body from converting food into energy

insulin

a protein made in the pancreas that regulates the level of glucose in the blood

osteoarthritis

a chronic disease that is common in older adults and results from a breakdown in cartilage in the joints

rheumatoid arthritis

a common disease characterized by pain, inflammation, swelling, and stiffness of the joints

arthritis

a disease of the joints marked by painful swelling and stiffness