Molecules such as proteins, nucleic acids, and carbohydrates have an affinity for water and are called hydrophilic (âwater-lovingâ). Lipids, however, are hydrophobic (âwater-fearingâ). Some lipids are amphipathicâpart of their structure is hydrophilic and another part, usually a larger section, is hydrophobic.
The high specificity at 10 and 11 mmindicates that lymph nodes of this size are almostalways metastatic in this level.A study of level II lymph nodes shows that for thewhole population a minimum diameter of 8 mm givesa relatively high sensitivity and specificity of 81% and80%, respectively.e found that a minimum axialdiameter of 7 mm for level II and 6 mm for the rest ofthe N0 neck represented the best compromise be-tween sensitivity and specificity. However, the size oflymph nodes was not an accurate predictor of metas-tasis in the N0 neck.
A number of studies have indicated that B cell and T cell lymphocytes are also instrumental in preventing and controlling the development of dangerous cancerous cells. The lymphocytes form about 15 percent to 40 percent of the total number of white blood cells present in the body.A decrease or increase in the normal levels of lymphocytes is considered as abnormal and usually an indication of the presence of some infections or health conditions. A low lymphocytes count is also as dangerous a condition as a high lymphocytes count. 2  When the percentage of lymphocytes that form the total number of white blood cells in the human body is lower than fifteen percent, then it signifies low levels of lymphocytes in the body.