contain undigested material and are used by the body from future infections. residual bodies, immune system lysosomes, immune system Ophagosomes, neutrophils O autophagosomes, neutrophils to help memory cells form and protect the
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- masses of lymphoid tissue in protective ring under the mucous membranes the mouth and the back of the are calledMatch the formed elements with their functions: Erythrocytes thrombocytes granulocytes neutrophils basophil natural killer cells Choices nonspecific innate defense mechanisms carry oxygen to tissues seek out and destroy bacteria via phagocytosis recognize and destroy abnormal host cells basophil releases histimine; function in allergic reactions and inflammation responses formation of blood clots and tissue repairA phagocyte enters tissues by: chemotaxis leukocytosis diapedesis margination
- Macrophage, when they encounter an antigen or pathogen release: Histamines. Prostaglandins. Tissue factor None of the aboveLarge clusters of lymph nodes occur in all of the following locations except the axillary region lower extremities cervical region inguinal regionAntibodies, complement proteins and nutrients enter the tissue, clots form to localize infection, phagocytes leave the blood and enter the tissue, capillaries and sca tissue form. These are all benefits that can result from what process? fever bacterial antagonism nutritional immunity acute inflammation taking a major credit card, flying to the Caribbean island of Antigua, and drinking frozen daiquiris on the beach for weeks
- Which of the following statements is NOT TRUE about Macrophages? Macrophages have a single, somewhat large nucleus and granular inclusions Macrophages serve as antigen presenting cells or APCs Macrophages can express both MHC I and MHC II when acting as an APC Macrophages have less surface area than dendritic cells have, to bind antigens Macrophages arise from the same cell as dendritic cells Resident macrophages are found in only certain, specific tissuesWhich of the following structures defend against pathogens by acting as a blood filter? lymph node thymus spleen tonsils red marrowRelease of phagocytes is considered which line of defense? second third first
- A 40- year-old patient after stress reaction has accidental involution of tymus and decreasing number of lymphocytes in peripheral blood. After their maturation in the thymus and release into the circulation, T- lymphocytes migrate preferentially to which of the following sites? Paracortex of lymph nodes Red pulp of the spleen O Cortical lymphoid nodules of lymph nodes Hilus of lymph nodes O Medullary cords of lymph nodesThe right lymphatic duct drains the lymph from: the entire right side of the body only the right side of the head and neck and right upper limb O the right side of the thorax, right upper limb, and right side of the head and neck only the right side of the thorax the right side of the thorax, the abdomen, and the right lower and the right upper limbsThe immune cell that would expand most during a parasitic infection would be? neutrophil T cell B cell eosinophil