Explain agglutination as it relates to blood groups
What will be an ideal response?
Antigens are surface proteins found on all cells including blood cells. In the case of blood groups, an individual's blood type reflects the presence or absence of specific antigens. An antigen-antibody response is initiated if the individual receives a transfusion of blood containing antigens that it identifies as being "foreign." Antibodies found in a person's blood bind to the foreign antigen, causing agglutination, or clumping. The antigen-antibody complexes clog the small blood vessels, and the foreign RBCs are lysed, releasing hemoglobin into the bloodstream. The most serious complication of a transfusion reaction is kidney failure due to blockage of the kidney tubules by the hemoglobin molecules.
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A horizontal, transverse, or axial plane runs crosswise through the body at right angles to the sagittal and coronal planes, dividing the body into superior and inferior parts.
Answer the following statement true (T) or false (F)
The lens of the eye thickens when the
A. ciliary muscles relax. B. ciliary processes relax. C. ciliary muscles contract. D. suspensory ligaments pull on the lens capsule.
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Indicate whether the statement is true or false
Olfactory and gustatory receptors are classified as which receptor type based on stimulus type received?
What will be an ideal response?