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app 131
Lymphatic System ch 15
| Question | Answer |
|---|---|
| The Lymphatic System is: | tissues and vesels scattered througout the body services almost all regions directly |
| Functions of Lymphatic system: | Fluid balance protection from infection absorption of fats |
| Fluid balance and lymphatic circultion return: | isf& proteins to the cardiosvascular system. |
| Fluid balance and circulation is: | a one way system that begins in the tissues and ends when lymph joins the blood. |
| Where does lymph originate? | ISF which comes from blood plasma. |
| Lymphatic capillaries are what: | excess ISF that are blind ended, have one way valves and have large gaps between cells |
| Lymphatic vessels are what: | superficial deep sets that have thin walls which have valves that prevent backflow &lymph nodes situated along them. |
| Lymphatic trunks are: | Lymphatic vessels that join to form different body regions |
| Lymphatic Ducts have: | Two main channels that drain lymph into venous blood. |
| Right Lymphatic duct receives lymph from: | upper right side of body and empties into right subclavian vein. |
| Left Lymphatic (thoracic) duct receives lymph begins @: | Cisterna Chyli (storage pouch) |
| Left lymphatic (thoracic) ducts receives lymph from: | LEFT SIDE & ENTIRE LOWER BODY AND EMPTIES INTO LEFT SUBCLAVIAN VEIN. |
| segments of lymph vessels between valves: | contract rythmically. |
| Contraction rate of lymph is: | related to fluid volume.volume increases, & creates more of a rapid contraction. |
| Lymphoid Tissue is: | Distributed throughout the body |
| Lymphoid tissue makes up: | specialized organs: lymph nodes, thmus, spleen and tonsils |
| Where is the thymus located | Located in the medianstinum-a space inbetween the heart and lungs. |
| function of the thymus? | T-cell maturation. Plays a key role in immune system developement before birth and during infancy. |
| What is the function of the lymph nodes? | To filter lymph. |
| Why are there so many lymph nodes located around the body's core? | To filter lymph. |
| Why are there so many lymph nodes located around the head/neck? | to protect anything inhaled or taken into the body that is harmful. |
| what are the four functions of the spleen? | 1. filter blood 2. destroy worn out or defective blood cells 3. produces RBC before birth 4. Resevior for blood |
| What would happen if a person had their spleen removed? | You can survive but are more susceptible to infection. |
| what is MALT? | MUCOSA ASSOCIATED LYMPHOID TISSUE |
| Where is MALT found? | mucous membranes lining digestive, respiratory & urogenital tracts. |
| Tonsils are: | Masses of lymphoid tissue located in pharynx (throat) |
| Tonsils function is to: | Remove contaminants from inhaled or swallowed materials. |
| Other lymphoid tissue: | Appendex-Fingerlike tube of lyphatic tissue attached to large intestine |
| what is a PATHOGEN? | Any disease causing organism (virus, bacteria, fungus, parasite) |
| what is an ANTOGEN? | Antibody generating subtance that causes the production of antibodies |
| what is PORTAL OF ENTRY? | How pathogens enter the body (mouth, gi tract, respiratory tract) |
| what is VIRULENCE? | Strength of a pathogen |
| what is DOSE? | Quantity of a substance an organism is exposed to-beyond a certain threshol, we get sick. |
| Innate Immunity is: | Present at birth- provides immediate & general protection against pathogens |
| Adaptive Immunity is: (SPECIFIC IMMUNITY) | ability of the body to defend itself against specific invading agents such as bacteria, toxins, viruses, and foreign tissues. |
| what are phagocytes? | Engulf foreign substances & destory it. |
| what are natural killer cells? | Bind to infected body cells and release an enzyme that destroys abnormal cells. |
| what are the symptoms of inflamation? | 1. redness 2. heat 3. swelling 4. pain |
| How is inflammation beneficial for fighting infection? | prevents spread of pathogens, dispose of debris & pathogens and set the stage for repair to bring blood back to the area. |
| How does fever aid in the immune respone? | Stimulates phagocytes and increases metabolism and decreases organisms ability to multiply. |
| What are 2 highly specialized functions of ADAPTIVE IMMUNITY? | 1. Systemically attack specific pathogens 2. Remembers pathogens after inital exposure |
| What are 2 types of Immune Responses for Adaptive Immunity? | 1. Cell mediated Immune Respones 2. Antibody-mediated immune Response |
| Cell-mediated immune respones are? | T-cells and cells attacking infected cells |
| Antibody-mediated immune Responses are? | Carried out by B cells Antibodys bind to and inactivate antigens |
| How is adaptive immunity different from nonspecific defenses? | Immune Responss are specific for particular foreign molecule and Immune responses have memory for most previously encountered foreign molecules. |
| Where do B cells originate? | in the bone marrow and other lymphod tissue. |
| What do B cells provide defense against?? | extracellular pathogens and destroy antigens with antibodies. |
| Where do T cells originate? | thymus |
| What do T cells provide defense against? | intercellular pathogens and destroy cells directly |
| what is a macrophage? | Processing center for foreign antigens and ingests antigen then presets it to T-cells. |
| How does massage affect the lymphatic system? | Provides mechanical movement of lymph fluid through one way valves of lymphatic vessels. |
| what causes hypersensititvity? | food, drugs, venoums, pollen, dust, mold, cosmetics. |
| symptoms of anaphylaxsis? | drop in blood pressure and interference with breathing |
| what causes autoimmune disorder? | immune system fails to recognize self antigens and attacks the bodys own cells. |
| what is Edema? | accumulation of fluid betweeen cells. |
| signs and symptoms of edema | tissue is soft and puffy, hot if recent infection, cool if edema is related to poor circulation. |
| When is massage contraindicated for Edema? | fluid retention, bed ridden w/o contrindicating conditions. |
Created by:
vslocum
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