Chapter 40Chapter 40

The Immune System and DiseaseBy: Lisa Lee & Thanh Huynh

The Immune System and DiseaseBy: Lisa Lee & Thanh Huynh

Infectious Disease by: LisaInfectious Disease by: Lisa A disease is a change in the body that isn’t an

injury and causes the body to not function correctly.

Diseases can be inherited, caused by materials in the environment, and can be caused by bacteria viruses and fungi.

Diseases can be spread by coughing, sneezing, or physical contact.

It can also be spread through contaminated water or food and infected animals.

A disease is a change in the body that isn’t an injury and causes the body to not function correctly.

Diseases can be inherited, caused by materials in the environment, and can be caused by bacteria viruses and fungi.

Diseases can be spread by coughing, sneezing, or physical contact.

It can also be spread through contaminated water or food and infected animals.

Fighting Infectious Diseases by: ThanhFighting Infectious Diseases by: Thanh

You can fight infectious diseases by antibiotics. It is a compound that kills the bacteria without hurting

the cells of a human or animal. They work by interfering with the cellular processes of

microorganisms.

You can fight infectious diseases by antibiotics. It is a compound that kills the bacteria without hurting

the cells of a human or animal. They work by interfering with the cellular processes of

microorganisms.

The Immune System by: LisaThe Immune System by: Lisa The most important nonspecific defense is the

skin. With the skin, very few pathogens can enter the

body, and the oils and sweat glands kills a lot of bacteria.

The inflammatory response is also a nonspecific defense reaction to tissue damage from an injury or infection.

If pathogens enter the body, the inflammatory response may have you experience a fever.

The most important nonspecific defense is the skin.

With the skin, very few pathogens can enter the body, and the oils and sweat glands kills a lot of bacteria.

The inflammatory response is also a nonspecific defense reaction to tissue damage from an injury or infection.

If pathogens enter the body, the inflammatory response may have you experience a fever.

Humoral Immunity by: ThanhHumoral Immunity by: Thanh Humoral Immunity is an immunity that are

against pathogens. Antibodies is a protein that ruins pathogens. It is the basic functional unit of the humoral

immunity. When the body is exposed to a pathogen millions

of B and T cells make antibodies to the pathogens.

Humoral Immunity is an immunity that are against pathogens.

Antibodies is a protein that ruins pathogens. It is the basic functional unit of the humoral

immunity. When the body is exposed to a pathogen millions

of B and T cells make antibodies to the pathogens.

Immune System Disorders by: LisaImmune System Disorders by: LisaOverreactions of the immune system are

allergies.They happen when antigens from

allergens bind to mast cells.When the body makes a mistake in the

immune system, it bothers its own cells and makes an autoimmune disease.

Overreactions of the immune system are allergies.

They happen when antigens from allergens bind to mast cells.

When the body makes a mistake in the immune system, it bothers its own cells and makes an autoimmune disease.

AIDS by: ThanhAIDS by: Thanh Aids stands for Acquired

Immune Deficiency Syndrome.

Once it enters the body, it attaches to receptors in the T cells.

HIV then replicates within the cells so it is most likely to bind to antibodies.

HIV then kills most of the helper T cells.

Aids stands for Acquired Immune Deficiency Syndrome.

Once it enters the body, it attaches to receptors in the T cells.

HIV then replicates within the cells so it is most likely to bind to antibodies.

HIV then kills most of the helper T cells.

Cancer by: LisaCancer by: Lisa Starts when something goes wrong with controls

of the normal cell growth and division. A single cell called a tumor can grow and divide

uncontrollably. Not all tumors are cancerous. Malignant cancerous tumors invade and ruin the

surrounding healthy tissue. Cancer cells spread and absorb nutrients from

other cells, block nerve connections, and stop organs they invade from functioning properly.

Starts when something goes wrong with controls of the normal cell growth and division.

A single cell called a tumor can grow and divide uncontrollably.

Not all tumors are cancerous. Malignant cancerous tumors invade and ruin the

surrounding healthy tissue. Cancer cells spread and absorb nutrients from

other cells, block nerve connections, and stop organs they invade from functioning properly.

Causes of Cancer by: ThanhCauses of Cancer by: Thanh

Caused by defects in the genes that controls cell growth and division. Inherited by viruses in the body, or can have mutations in the DNA. Some cancers can enter cells and interrupt the normal process of mitosis. Radiation like sunlight, x-rays, and nuclear radiation can cause cancer by

mutations in the DNA. Carcinogens are chemical compounds that trigger mutation in the DNA of

normal cells.

Caused by defects in the genes that controls cell growth and division. Inherited by viruses in the body, or can have mutations in the DNA. Some cancers can enter cells and interrupt the normal process of mitosis. Radiation like sunlight, x-rays, and nuclear radiation can cause cancer by

mutations in the DNA. Carcinogens are chemical compounds that trigger mutation in the DNA of

normal cells.

Fighting Cancer by: LisaFighting Cancer by: Lisa Best way to fight cancer

is to prevent it. For example, you can

reduce the risk of lung cancer by not smoking.

If cancer is detected, the chances of treating it can be as high as 90%

Treatments are surgery, radiation therapy, and drug therapy.

Best way to fight cancer is to prevent it.

For example, you can reduce the risk of lung cancer by not smoking.

If cancer is detected, the chances of treating it can be as high as 90%

Treatments are surgery, radiation therapy, and drug therapy.

CancerCancer