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Lymphatic System
This category is for questions about the various vessels by which lymph, a watery fluid of leukocytes, circulates through the body, providing transportation for some materials and removing particulate from tissues.
1,658 Questions
How does lymph help protect against infection?
How does the lymphatic system protect the body against pathogens?
Can the immune system fight off HIV AIDS and SCID?
No. HIV attacks and overwhelms the immune system. In fact, the reason you can die of AIDS has nothing to do with the disease, but rather any sickness you catch with your immune system shot.
How does the immune system recognize its own body?
By recognizing self from non-self. Every cell in the body carries specific protein markers that are recognized by all immune cells so they do not attack self, at least when the system is operating well.
Do you have lymph nodes in the elbow?
Yes. Superficial lymph nodes are present along your arm. However, the area in which you will find most of this type of lymph node is on the palm of your hands and in the areas that are used to flex your fingers.
Why doesn't the immune system fight the pathogen that causes aids?
AIDS (Acquired Immune Deficiency Syndrome) is a diagnosis, not a disease that can be fought.
HIV (Human Immunodeficiency Virus) is the virus that causes AIDS. HIV attacks the cells in the body that fight disease and uses them to reproduce. The body's immune response only serves to benefit the virus.
Identify six actions that decrease the risk of infection and strengthen the body's immune system?
1) Use condoms during sex
2) Limit the number of sexual partners
3) Test for diseases--both partners
4) Maintain monogamy
5) Take care of your health--reduce quit smoking, eat right, exercise, rest adequately
6) Do not share needles with anyone
AIDS cripples the immune system by interfering with activity of cells called?
HIV cripples the immune system by infecting and killing helper T cells (specifically CD4+ T cells), macrophages, and dendritic cells. These cells hold crucial roles in the immune system in identifying and destroying antigens (foreign invaders). Over time, this destruction of the immune system causes the Acquired Immunodeficiency Syndrome (AIDS).
WHere does lymphatic pathways begin?
Lymphatic Pathways begin when the lymphatic capillaries come out of the lymphatic vessels. Lymphatic Vessles leave to lymphnodes and act as a filter for the liquid is going through.
Blood cells are predominantly red cells. They outnumber the white cells by a factor of 1000:1 to 2000:1 in normal humans.
The composition of blood is 55% plasma and 45% formed elements. The formed elements are mostly red blood cells, which make up 44% of total blood volume.
The remaining 1% consists of white blood cells and platelets.
Appx. 700:1
Blood consists of formed elements (red blood cells, white blood cells and platelets) and plasma. Red blood cells (erythrocytes) account for 99.9% of cells. Plasma 55%, and Cells 45%.
What does the thoracic duct do?
Like the arteries and veins which carry blood, the thoracic duct is a vessel belonging to the lymphatic system which transports the lymph from the body and drains in the veins of the neck on the left side
What are the three main cells that make up the immune system?
phagocyte is the main cell of immune system
Why are the tonsils important in the lymphatic system?
Adenoids and Tonsils trap harmful microorganisms, so they could not enter the respiratory system.
What is metabolically active lymph nodes?
No, looking for metabiolically active nodes in the mediastinum
Which nutrients enters the body through the lymph?
Water-soluble nutrients are first carried in the lymph after digestion. The lymphatic system has no pump for fat-soluble nutrients; instead, these nutrients eventually enter the vascular system, though they bypass the activity of the liver at first.
Are there lymph glands in back of head?
i have a child of 13 mnths.today i felt two swollen part at the back of her head in between ears.they r a little soft yet swollen,which could be felt only when touched.by looking i could'nt make it out
pls reply and help.i am very scared
madhumita
How does HIV damage th immune system?
HIV attaches and takes over Immune system cells called CD4. These cells locate Infections in the Body and coordinate their destruction. Without medication the body cant replace CD4 cells as fast as they are lost. As the CD4 level drops,infection can enter the body with less resistance and replicate and spread,thus doing damage as the body struggles to locate the infection. When the CD4 level falls below 200 a person is said to have AIDS and without treatment death will come in an average of 9 months or so.
Does tamoxifen weaken your immune system?
No its not an aimmunosupressant !
It has an anti-estrogenic effect which is useful in breat cancer patient !
Why are there more erythrocytes in the blood than leukocytes?
Erythrocytes are red blood cells, contain hemoglobin, and carry oxygen to the cells and tissues and carbon dioxide back to the respiratory organs. Leukocytes are white blood cells and participate in immune function.
What is the difference between the first and second line of defense in the immune system?
The difference between the first and second line of defence is that the first line of defence is your physical barrier like your skin and it protects you from most pathogens entering your body and the sweat and oil on your skin prevent some pathogens from growing on your body. the second line of defence is when a pathogen makes it past the first line of defence your body can mount an immune response to the attack and destroy the invader. Whether or not the response succeeds depends very much on your body's ability to distinguish between cells that belong to it and cells that do not.
