Concept explainers
Introduction:
The immune system normally serves to protect the body from an outer attack. This protective function primarily depends on distinguishing self (the body’s own cells) from non-self and is crucial to a healthy immune system. The recognizing capacity of the immune system is possible due to the presence of large molecules called antigens, which are expressed and displayed on all cells’ surfaces.
An application of the antigen–antibody reaction is when blood is essential to be transfused from a donor to a recipient. The occurrence or lack of antigens and antibodies on the erythrocytes and in the plasma of the donor and recipient needs to be considered to avoid a potentially life-threatening transfusion reaction.
Want to see the full answer?
Check out a sample textbook solutionChapter 18 Solutions
A&P UNITY AND FUNCTION ACCESS
- True or False: C3b is the insoluble ligand that anchors neutrophils at the site if injury.arrow_forwardNeutrophils and macrophages are both leukocytes - white blood cells. Describe two additional similarities and two differences between these cellsarrow_forwardTrue or False: The most important components in the cytoplasm of RBCs are hemoglobin and carbonic anhydrase.arrow_forward
- Fill in the blank: The process called _______________________ provides the most important means of transfer of biochemicals through capillary walls.arrow_forwardwhite blood cells functions and characteristicsarrow_forwardHemoglobin, a pigment found in RBC's, has a high affinity for oxygen. RBC's contain ~280 million molecules of hemoglobin which can each carry 4 oxygen molecules. The _____________ in the central portion of hemoglobin is what binds the oxygen to the RBCarrow_forward
- The overall cessation of bleeding, involving several mechanisms, is called _____.arrow_forwardWhat types of cells are found in the "buffy coat", the thin brown layer between RBC's and plasma in a centrifuged hematocrit tubearrow_forwardA person with type A blood can safely donate RBCs to someone of type someone of type O B; A AB; O O 0; 0 O; AB and can receive RBCs fromarrow_forward
- Understanding Health Insurance: A Guide to Billin...Health & NutritionISBN:9781337679480Author:GREENPublisher:Cengage
- Medical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning