A&P - Wk 6
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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show | lymph
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show | these areas' excess tissue fluid drains into the cerebrospinal fluid
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show | chyle
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What are the major lymphatic trunks? | show 🗑
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show | cisterna chyli
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show | lymphangitis - the pathway of the associated superficial lymphatics becomes visible thru the skin as red lines tender to the touch
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show | by pulsations of nearby arteries, thythmic contractions of thoracic ducts and movement of adjacent tissues
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What is blockage of the lymphatics by tumors or removal of lymphatics during cancer surgery which prevents the normal return of lymphatics to the blood called? | show 🗑
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show | 1) return excess tissue fluid to the bloodstream; 2) return leaked proteins to the blood; 3) carry absorbed fat from the intestine to the blood (thru lacteals)
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Which cells produce plasma cells, that secrete antibodies into the blood an recognize antigens? | show 🗑
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What is lymphoid tissue mainly composed of except the thymus? | show 🗑
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What lives on the fibers of the reticular network? | show 🗑
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show | lymphocytes that have squeezed thru the walls of postcapillary venules coursing thru the tissue
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show | T cells or B cells
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Which cells manage the immune response by directly attacking and destroying infected cells? | show 🗑
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show | B cells
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Where do lymphocytes arise from? | show 🗑
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What plays a crucial role in body protection and in the immune response by phagocytizing foreign substances and by helping to activate T cells? | show 🗑
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show | reticular cells
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Where do the lymphocytes cycle between in the body? | show 🗑
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show | diffuse lymphatic tissue
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What cells predominate in germinal centers (the lighter staining center of a lymphoid follicle? | show 🗑
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When do germinal centers enlarge dramatically? | show 🗑
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show | follicular dendritic cells and B cells
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show | Peyer's patches
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show | lymph nodes, which cluster along the lymphatic vessels of the body
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As lymph is transported back to the bloodstream the lymph nodes do what to it? | show 🗑
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show | inguinal, axillary and cervical regions
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What are the primary functions of lymph nodes? | show 🗑
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show | trabeculae
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What 2 histologically distinct regions comprise a lymph node? | show 🗑
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show | densely packed follicles, many with germinal centers heavy with dividing B cells
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What cells nearly encapsulate the follicles and abut the deeper part of the cortex, which primarily houses T cells in transit? | show 🗑
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What role do the T cells perform by circulating continuously between the blood, lymph nodes and lymph? | show 🗑
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show | medullary cords
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show | Thru a number of afferent lymphatic vessels
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How does the lymph exit the node at its hilum (the indented region on the concave side? | show 🗑
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What are infected lymph nodes called? | show 🗑
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Buboes are the most obvious symptom of what? | show 🗑
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What do the spleen, thymus, tonsils, bits of lymphatic tissue scattered in the connective tissues and Peyer's patches of the intestine have in common? | show 🗑
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What is the only lymphatic organ not comprised of reticular connective tissue? | show 🗑
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show | blood-cleansing; extracts aged and defective blood cells and platelets and removes debris
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What 3 additional functions does the spleen perform? | show 🗑
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The spleen contains large numbers of what? | show 🗑
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Areas of the spleen composed mostly of lymphocytes suspended onreticular fibers are called what? | show 🗑
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The white pulp clusters or forms "cuffs" around the central arteries in the spleen and appears to be islands in a sea of what? | show 🗑
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show | worn out red blood cells and bloodborne pathogens
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show | the immune functions of the spleen
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What is removal of a reuptured spleen called? | show 🗑
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The thymus causes what cells to become immunocompetent, enabling them to function against specific pathogens in the immune response | show 🗑
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What structures in the thymus consist of concentric whorls of keratinized epithelial cells, and are sites of T cell destruction? | show 🗑
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show | 1) it functions strictly in T lymphocyte maturation so does not directly fight antigens
2) the stroma of the thymus consists of epithelial cells not reticular fibers
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show | tonsils
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Which tonsils are located on either side at the posterior end of the oral cavity and are the largest and the ones most often infected? | show 🗑
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What tonsil is in the posterior wall of the nasopharynx? | show 🗑
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show | tubal tonsils
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show | lingual tonsils
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What function does the tonsils perform? | show 🗑
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What are large isolated clusters of lymphoid follicles, structurally similar to the tonsils, and are located in teh wall of the distal portion of the small intestine? | show 🗑
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Which follicles are heavily concentrated in the wall of the appendix? | show 🗑
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show | Peyer's patches, the appendix, and the tonsils
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show | in the digestive tract
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show | the never-ending onslaughts of foreign matter entering them
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show | 5th
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show | from the budding of lymph sacs from developing veins
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How can pathogens and cancer cells spread thru the body? | show 🗑
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show | lymphocytes (T cells or B cells); plasma cells; macrophages; dendritic cells; reticular cells
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show | lymph nodes
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Each lymph node consists of what 3 things? | show 🗑
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Lymphocytes arise from what tissue? | show 🗑
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show | right arm, right side of head, and right side of upper body
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show | the left side of head, left side of upper body and entire lower body
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show | lacteals
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show | chyle is a milky bodily fluid consisting of lymph and emulsified fats and the composition of lymph is clear, watery fluid that contains protein molecules, salts, glucose, urea,
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show | So as not to spread the infection via lymph transport
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show | skeletal muscle contraction, contractions of the lymphatic vessels
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Where does the thoracic duct empty into? | show 🗑
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show | the right subclavian vein
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What comprises lymphatic tissues? | show 🗑
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What are inflamed pharyngeal tonsils, located in the nasopharynx called? | show 🗑
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show | palatine tonsils
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Which tonsils are found on the root of the tongue? | show 🗑
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