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 91 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
19,219,589 questions answered
Popular Conversations
Solve each equation. 7x^2 = 49
Weegy: 7x=49-7 7x=42 x=6 User: Solve each equation. 8x^2 - 24 = 3x^2 - 9 Weegy: 8x + 3 = 7x - 2 8x - 7x = -2 - 3 ...
1/28/2015 7:50:36 AM| 4 Answers
Solve the equation. 6 = 2(x + 8) - 5x User: Solve the ...
Weegy: -6p - 21 = 3p - 12 -6p - 3p = -12 + 21 -9p = 9 p = -1 User: Solve the equation. 0.6(y + 3) = 4.8 User: ...
1/28/2015 11:52:13 AM| 4 Answers
Solve for x. 7(x + 1) = 21 User: Solve for x. 7(x + 1) = 21
Weegy: 4/7=x+3/21 x = 4/7 - 3/21 x = 4/7 - 1/7 x = 3/7 User: Solve for x. 5(x + 1) = 4(x + 8) User: Solve for ...
1/28/2015 7:25:48 AM| 3 Answers
Solve the equation. 2(x + 4) = 30 User: Solve the equation. x/5 + ...
Weegy: p ? 1 = 4 p = 4 + 1 p = 5 User: Write the given sentence as an equation. Tim’s age in 7 years will be three ...
1/28/2015 11:37:11 AM| 3 Answers
The square of a certain negative number is equal to five more than ...
Weegy: x^2 = 0.5x + 5 Quadratic formula gives solutions as: -2 and 2.5, but since x is negative, it's -2. User: ...
1/28/2015 12:03:27 PM| 3 Answers
What kind of complement is the underlined word? Tell me your ...
Weegy: Colorado became a state in 1876. The word state is a predicate nominative. User: Which part of speech is ...
1/28/2015 12:17:13 PM| 3 Answers
What is writ of assistance?
Weegy: Writing is language in a textual medium through the use of a set of signs or symbols (known as a writing ...
1/28/2015 9:22:07 PM| 2 Answers
What is the Declaratory Act?
Weegy: The Declaratory Act was a gesture of British Parliament reasserting its authority to pass laws on the colonies, ...
1/28/2015 9:27:31 PM| 2 Answers
The slope of the line passing through the points (-1, 5) and (3, 5) ...
Weegy: (-1) * 5 = -5 User: what is the slope of the line passing thru (0,4) and (-8,-1) User: What is the slope of ...
1/29/2015 4:21:11 AM| 2 Answers
Weegy Stuff
S
L
Points 2000 [Total 2021]| Ratings 0| Comments 2000| Invitations 0|Offline
S
L
P
L
P
Points 1370 [Total 6647]| Ratings 0| Comments 1370| Invitations 0|Offline
S
1
L
1
L
P
P
L
P
P
Points 670 [Total 15681]| Ratings 0| Comments 670| Invitations 0|Offline
S
L
Points 438 [Total 1119]| Ratings 2| Comments 418| Invitations 0|Offline
S
1
L
L
Points 272 [Total 6972]| Ratings 1| Comments 262| Invitations 0|Offline
S
Points 102 [Total 117]| Ratings 1| Comments 92| Invitations 0|Offline
S
P
C
L
P
L
1
Points 92 [Total 6680]| Ratings 1| Comments 82| Invitations 0|Offline
S
L
Points 83 [Total 1644]| Ratings 0| Comments 83| Invitations 0|Offline
S
Points 63 [Total 445]| Ratings 0| Comments 63| Invitations 0|Offline
S
Points 50 [Total 52]| Ratings 0| Comments 0| Invitations 5|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.