Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Module 11 A&P
Lymphatic System
| Term | Definition |
|---|---|
| lymphatic system consist of | lymphatic vessels, lymphatic tissue, and lymphatic organs |
| lymphatic carry fluid... | away from the tissues |
| the tissues and organs of the lymphatic system produce... | immune cells |
| functions of the lymphatic system | maintenance of fluid balance, absorption of fats, immunity |
| maintenance of fluid balance | lymph fluid is formed from tissue fluid left behind after the capillary exchange, absorbs fluid not reabsorbed and returns to the bloodstream |
| absorption of fats | specializes lymphatic vessels in the small intestines absorb fats and fat soluble vitamins |
| immunity | lymph nodes and other lymphatic organs filter lymph to remove microorganisms and foreign particles |
| lymph and plasma are different because of... | protein content |
| lymphatic vessels have thin walls and valves... | to prevent back flow, enduring that lymph moves steadily away from the tissues and towards the heart |
| fluid moves passively, aided primarily by.... | rhythmic contractions of lymphatic vessels |
| flow is aided by.... | contraction of skeletal muscles |
| respiration causes.... | changes that help propel lymph from abdominal to thoracic cavity |
| right lymph drains.... | upper right quadrant into right subclavian vein |
| the thoracic drains lymph from.... | rest of the body into the left subclavian vein |
| two types of lymphatic organs | primary and secondary |
| primary lymphatic organs | red bone marrow, thymus; provide a location for B and T lymphocytes to mature |
| Secondary lymphatic organs | lymph nodes, tonsils, spleen |
| peyer's patches | lymphatic nodules in the small intestine |
| lysozymes | found in mucous, tears, and saliva |
| germinal centers form and release lymphocytes.... | when infection is present |
| function of lymph node | remove pathogens from lymph |
| cancer can spread through the lymphatic system... | when a person has breast cancer the physician will check the axillary lymph nodes |
| single pharyngeal tonsil | sits on the wall of the pharynx, just behind the nasal cavity |
| spleen | the body's largest lymphatic organ |
| spleen resides in the..... | upper left quadrant of abdomen |
| spleen function | immunity, destruction of old RBC, blood storage |
| immunity function | screen blood for foreign antigens; ingest and destroy and microorganisms |
| destruction of old RBC function | digest worn out RBC and imperfect platelets, recycle hemoglobin |
| blood storage function | helps stabilize blood volume by rapidly adding blood back into general circulation, stores 20-30% body platelets |
| three lines of defense | external barriers, nonspecific immunity, specific immunity |
| external barriers | skin and mucous membranes, produce muscous that traps pathogens |
| phagocytosis | most important phagocytes: Neutrophils and macrophages |
| natural killer cells | group of lymphocytes that seek out and destroy foreign cells, roam the body, unique group of lymphocytes |
| inflammation | stimulates body defense to start fighting infection while instigating measures to contain the pathogen |
| fever | elevation of body temp, promotes the activity of interferon, inhibits the reproduction of viruses and bacteria |
| antimicrobial proteins | interferon and complement |
| phagocytes | cells that ingest and destroy microorganisms and other small particles |
| most important phagocytes are... neutrophils and macrophages | neutrophils and macrophages |
| complement | more than 20 different proteins circulate the the bloodstream in an inactive form |
| a bacteria, or antibodies against the bacteria.... | activate the complement |
| holes are punched in the bacterium... | and swells and burst |
| fever is beneficial.... | it promotes the activity of interferon and inhibits the reproduction of bacteria and viruses |
| pyrexia | also know as "fever" |
| cellular immunity | T cells, aims to destroy foreign cells or host cells that have become infected with a pathogen |
| humoral immunity | B cells, focuses on pathogens outside the host cells; it sends out antibodies to "mark" a pathogen for later destruction, Mainly uses B cells |
| T lymphocytes | develop in bone marrow, mature in thymus |
| B lymphocytes | develop in bone marrow; remain there until fully mature |
| most abundant of all of the immunoglobulins is.... | IgG |
| three classes of T cells | cytotoxic T cells, Helper T cells, Memory T cells |
| Helper T cells | secrete chemicals that summon neutophils and natural killer cells |
| allergic reaction | first exposure: body produces IgE |
| Mast cells release...... | Histamine |
| Anaphylaxis | severe, immediate allergic reaction that affects the whole body |
| active immunity | permanent or long lasting |
| natural active immunity | body produces the virus,( meseals) |
| Artificial active immunity | body makes T cells and antibodies against a disease as a results of a vaccination |
| passive immunity | immunity that only last a few months |
| natural passive immunity | fetus acquires antibodies from mother (breast feeding) |
| artificial passive immunity | obtaining serum from person or animal that has produces antibodies against certain pathogens and then injecting them into someone else |
Created by:
Kylee_cheyenne
Popular Anatomy sets