Bryan Valle

1
Lesson 14.52

• Bryan Valle
• Period 2

2
Basic functions of the human immune system

• The human immune system is made up of several
  interdependent cell types which protect the
  human body from a variety of parasitic, fungal,
  bacterial and viral infections, as well as from
  the growth of tumor cells.
• These cell types have specialized functions, are
  able to kill parasites, engulf bacteria, or kill
  tumor cells or viral-infected cells.

3
Nonspecific immune response

• Nonspecific immune response is the first and
  second line of defense when a foreign object
  tries to enter or has entered the body.
• Examples of nonspecific immune responses are
  Skin, Mucous membranes, Phagocytic cells,
  Antimicrobial proteins, and the inflammatory
  response.

4
Specific immune response

• The immune systems specific defenses distinguish
  between self and other , and they inactivate
  or kill any foreign substance or cell that enters
  the body.
• Specific defenses respond to a particular
  pathogen.

5
Basic functions of vaccines

• Vaccines are drugs used to increase the body's
  ability to combat disease organisms.
• Vaccines work by mimicking disease agents and
  stimulating the immune system to build up
  defenses against them.

6
Basic functions of antibiotics

• Antibiotics work in two different ways, either by
  killing the bacteria or blocking its function.
• Antibiotics only attack the bacteria present in
  the body thats causing the disease, they do not
  affect the cell of the body.

7
Significance of genetic factors on health

• Genes affect our chances of having several common
  illnesses, like heart disease, asthma and
  diabetes.

8
Significance of environmental factors on health.

• Some positive environmental factors on health are
  soil quality, biodiversity, the ozone layer, and
  waste recycling and disposal.
• Some negative environmental factors are floods,
  droughts, natural disasters, pollen, and
  pollution.

9
Significance of pathogenic agents on health

• Pathogenic agents are any substance or condition
  that causes disease like genetic defects and
  toxins.
• Pathogenic agents can cause disease and can
  spread through personal contact and water.