Types of immune response

What's the difference between cell mediated response and humoral response? are they both a type of specific immune response?

Humoral Immunity 1. It consists of B-lymphocytes which produce the antibodies that circulate in the body fluids.2. It defends the body against viruses and bacteria.3. It does not respond to transplants.4. It does not provide immunity against cancer.Cell Mediated Immunity 1. It consists of T-lymphocytes which produce normally 4 types of T-cells.2. It defends the body against all pathogens including fungi and protozoa.3. It reacts against transplants.4. It provides immunity against cancer.NB: yes they are both specific immune response 
Simon S.
28 March 2015
The hum oral response involves b cells that recognise antigens or pathogens that circulate in the lymph and blood. The cell mediated response involves mostly T cells and responds to any cell that displays MHC receptors, including cells invaded by pathogens, tumour cells or transplanted cells
30 March 2015
they are both a form of specific immune response
30 March 2015
thanks, what is MHC receptors?
31 March 2015
the MHC receptors are responsible for rejecting any foreign material or accepting them for example skin grafts
03 April 2015
okay, does is stand for anything?
06 April 2015
Hi there!They are both a type of specific immune response: i.e  they involce a generation of specialised lymphocytes against a specific antigen.Humoral immunity is the antibody mediated cell response. Very briefly: B cells recognise antigens then proliferate into plasma cells (which produce antibodies) and memory type B cells.The cell mediated response is mainly mediated by T cells. This involves self cells that display a MHC protein (eg virus infected cells) T cells proliferate into cytotoxic t cells which destroy the abnormal cells and may induce b cells to make antibodies.Hope that helps :) if you have any more questions on any bio topic feel free to message me!
27 April 2015
Differences: Humoral immunity is dependent on antibodies produced by plasma cells while CMI relies on cytotoxic T-lymphocytes. Humoral immunity is directed mainly against extra-celluar antigens, such as a bacteria. Humoral responses are MHC-II restricted, while CMI is MHC-I restricted. Similarities: Both responses are specific for a particular antigen, both result in long-term memory, both rely on lymphocytes.
03 June 2015
https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/introduction-to...this video explains it all . Understanding is key
22 July 2015
cell mediated response is effectuated by mostly T cells and other cells such as Natural Killer cells.Humoral response on the other hand is mediated by antibodies produced by B cells (plasma cells to be more specific)
20 May 2016
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How does tissue fluid return back into the circulatory system? ( AQA AS biology)

Q - How does tissue fluid return to the circulatory system?

In my textbook, it says the main reason is that it re-enters the capillaries by the loss of hydrostatic pressure within them, so by the time the blood gets to the venous end of the capillary the hydrostatic pressure is less within the capillary than outside them in the tissue fluid, so the tissue fluid is forced back into the blood in the capillary. However, when I look at mark schemes it says that it mainly re-enters by osmosis? How does it move in by osmosis? (I know that the remaining moves back into the bloodstream via the lymphatic system)


As the blood moves through the capillary it is getting further from the heart and pressure is being split between branches. This means hydrostatic pressure, and the force that attempts to push the fluid through the walls, decreases, However, osmotic pressure (basically how big the gradient of water potentials is) must get higher than hydrostatic pressure to ‘over power’ it. With nutrients moving out with the water, this means water potential would hardly be affected. However, there are special proteins in the plasma of the blood called plasma proteins. Being soluble (unlike may proteins) they alter water potential and being large (like many proteins) they are unable to cross the semi-permeable cell membranes of the capillary wall. As water moves out, the concentration of these proteins increases, and the water potential in the capillaries decreases. The gradient of water potential from outside to inside gets higher, as does the osmotic pressure. Eventually, osmotic pressure is higher than hydrostatic pressure, and fluid is forced back in! Any excess is returned via the lymphatic system, entering dead-ended lymphatic capillaries. This system of vessels eventually drains the excess fluid back into the circulatory system.