Question and answer
The role the immune system plays in prevention or recovery from heart disease?
The immune system is our body's protective network designed to fend off invasion by harmful substances, including bacteria, viruses, and harmful chemicals, [ and to act as a surveillance system against the development of cancer. Under normal circumstances, the immune system is highly efficient, providing multiple defenses against the onslaught of outside invaders. These defenses include
physical barriers (such as skin); the non-specific inflammatory response, which is brought about by changes in blood flow that bring chemical substances to the injured area; and specific immune responses, in which the body learns to recognize specific invaders and destroy them after subsequent exposures. In many diseases, ranging from autoimmune diseases to AIDS and CFS, there is evidence of mild to severe dysfunction of the immune system. An impaired immune system weakens the body's ability to fend off infection and malignancy, but the immune system can also produce symptoms such as fever, weight loss, musculoskeletal pain and fatigue. In fact, many of the symptoms of the flu (such as achy muscles and joints, fever, and headache) are caused by the immune system's response to the infection. Functions of the immune system suspected to be impaired in CFS include those of the B-lymphocytes (B cells) and T-lymphocytes (T cells), as well as those of the phagocytic and complement systems. B cells and T cells carry out specific immune responses. B cells, a type of white blood cell, can recognize foreign proteins (antigens) and make specific proteins (antibodies) to destroy the antigens (humoral immunity). T cells, other types of white blood cells, do not produce antibodies, but can perform a number of functions, including recognizing foreign antigens, attaching to them and destroying the invader cells (cell-mediated immunity). The phagocytic and complement systems bring about non-specific inflammatory responses. In the phagocytic system, numerous types of white blood cells (phagocytes) engulf and digest foreign particles. ]
Expert answered|jeifunk|Points 815|
Question
Asked 10/13/2011 11:12:46 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
What types of environmental factors that affect health are present in most cites?
Weegy: Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or cause damage to the natural environment or built environment, [ into the atmosphere. The atmosphere is a complex dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth's ecosystems. ] (More)
Question
Expert Answered
Asked 10/6/2011 8:56:19 AM
0 Answers/Comments
How do you deal with these potentially harmful environmental factors such as pollen?
Weegy: Potentially harmful environmental factors such as pollen must be dealt on a day to day basis. Better take care of yourself. Be in the best health possible, exercise daily and watch your diet. [ There's no timeline when this potentially environmental factors may affect you, so better be ready. ] (More)
Question
Expert Answered
Asked 10/6/2011 9:02:57 AM
0 Answers/Comments
What is pollen?
Weegy: Pollen is a fine to coarse powder containing the microgametophytes of seed plants, which produce the male gametes (sperm cells). (More)
Question
Expert Answered
Updated 302 days ago|10/29/2014 8:41:18 AM
0 Answers/Comments
what are the side affects of pollen
Weegy: If a person is allergic to pollen it can cause the following symptoms. [ * Runny nose * Watery eyes * Itchy nose, eyes and roof of mouth * Sneezing * Stuffy nose * Pressure in the nose and cheeks * Ear fullness and popping * Dark circles under the eyes * Hives ] (More)
Question
Expert Answered
Asked 10/6/2011 9:15:14 AM
0 Answers/Comments
What steps can I take to help protect myself from environmental health risk factors?
Weegy: i would suggest to go to your doctor and ask for some vitamins or medicines or vaccine this may help you and also clean your surroundings as well (More)
Question
Expert Answered
Asked 10/6/2011 9:33:28 AM
0 Answers/Comments
21,924,752 questions answered
Popular Conversations
The part of an arch that projects slightly from the wall and the ...
Weegy: The part of an arch that projects slightly from the wall and the point where the arch springs from is called the ...
8/26/2015 12:36:20 PM| 3 Answers
Social process that gets things done.
8/26/2015 3:31:28 PM| 2 Answers
52 and 1/2% of what number is 21
Weegy: Im sorry but I dont understand your questio? Can you please be more specific so that I can provide you the best ...
8/26/2015 5:48:29 PM| 2 Answers
Fill in the blank with the appropriate number. ____ - 39 = 0
Weegy: 39 - 39 = 0 User: Write an equation that represents the problem, then solve the problem. The product of -8 ...
8/26/2015 7:06:43 PM| 2 Answers
Weegy Stuff
S
P
C
L
P
L
1
P
P
1
P
1
P
L
P
R
Points 1084 [Total 11437]| Ratings 6| Comments 1024| Invitations 0|Online
S
L
Points 717 [Total 1032]| Ratings 1| Comments 707| Invitations 0|Offline
S
L
L
P
1
Points 667 [Total 9240]| Ratings 2| Comments 647| Invitations 0|Offline
S
1
L
L
Points 655 [Total 9123]| Ratings 2| Comments 625| Invitations 1|Offline
S
Points 464 [Total 690]| Ratings 1| Comments 454| Invitations 0|Offline
S
Points 242 [Total 250]| Ratings 0| Comments 242| Invitations 0|Offline
S
Points 215 [Total 215]| Ratings 3| Comments 185| Invitations 0|Offline
S
Points 214 [Total 533]| Ratings 1| Comments 204| Invitations 0|Offline
S
Points 132 [Total 209]| Ratings 0| Comments 132| Invitations 0|Offline
S
Points 104 [Total 105]| Ratings 1| Comments 94| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.