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Lymphatic System
| Term | Definition |
|---|---|
| Lymphatic system main functions | Filtration and immunity |
| Lymphatic is associated with both | the blood and cardiovascular systems |
| The Lymphatic system consists of: | Lymph fluid; Lymph vessels; Lymph nodes; Thymus; Spleen; and Tonsils |
| Lymph vessels differ from the vessel of the cardiovascular system because: | they do not form a closed circuit |
| Lymph vessels originate in: | the intercellular spaces of the soft tissue |
| The smallest of the lymphatic vessels are the: | Lymphatic capillaries |
| Lymphatic capillaries originate in tissue spaces as: | blind ended sacs ( like top of slurpee spoon) |
| Unlike the blood vessels in the CV system, the lymphatic system transports fluid: | in only one direction, which is away from the tissues and towards the thoracic cavity |
| There are two lymphatic ducts called: | the right lymphatic duct and the thoracic duct |
| Lymph drainage from the right side of the head, neck, right upper extremities and right side of chest flows to : | right lymphatic duct |
| The right lymphatic duct empties to the: | right subclavian vein |
| Lymph drainage from the rest of the remaining regions of the body flow to: | thoracic duct |
| Thoracic duct empties to the : | left subclvian vein |
| Lymph nodes are also know as: | lymph glands which are collections of lymphatic tissues |
| There are major concentrations of lymph nodes: | Cervical lymph nodes; Mediastinal lymph nodes; Axillary lymph nodes and Inguinal lymph nodes. |
| The cervical lymph nodes are located: | in the neck (cervic) |
| The medistinal lymph nodes are located : | spaces between the lungs ( Medistinal) |
| The axillary lymph nodes are located : | armpits ( axilla) |
| The inguinal lymph nodes are located : | groin ( Inguin/o) |
| Two process occurs when lymph passes through the lymph nodes: | old dead cells and bacteria present in lymph are filtered out so they will not be emptied into blood vessels and phagocytes called Macrophages engulf and destroy bacteria which is filtered out |
| Engulfing and destroying of bacteria is know as: | phagocytosis |
| Macrophages are found in the: | liver; spleen; lungs; brain; and spinal cord |
| Lymph enters the lymph node through the: | afferent lymphatic vessel |
| Lymph is carried out of the lymph node through the: | efferent lymphatic vessel |
| The Thymus is important in the lymph sytem because: | it secretes thymosin which produces T-cells which are important for the immune response |
| The spleen plays important roll in the immune response because: | it filters pathogens and old dead RBC's from circulation through phagocytosis. |
| The tonsils play important roll because: | help protect against bacteria and other harmful substances that may enter the body through the mouth. |
| There are 3 sets of tonsils called: | Pharangeal Tonsils; Palatine Tonsils; and Lingual Tonsils |
| Pharyngeal Tonsils are located : | aka adenoids located near the opening of the nasal cavity |
| Palatine Tonsils are located : | aka " the tonsils" located on each side of the throat |
| Lingual Tonsils are located: | near the base of the tongue |
| immunity | the state of being resistant to or being protected from a disease |
| resistance | the body's ability to counteract the effects of pathogens and other harmful agents |
| susceptible | if the body lacks the resistance to pathogens and other harmful agents |
| natural immunity | is that which we are born aka genetic immunity |
| passive acquired immunity | do no produce immune response; is acquired artificially by injecting anti-bodies from the blood of other individuals or animals |
| active acquired immunity | either acquired naturally as a result of having had a disease or inoculated with vaccine, antigen or toxoid |
| natural acquired immunity | individual who has a full-blown case of a disease ie: measles will usually develop enough anti-bodies to prevent reoccurance |
| artifically acquired immunity | an individual receives a vaccine |
| Humoral immune response | B-cells; when lymphocytes come in contact with specific antigens the produce antibodies called immunoglobulins |
| anti-bodies belong to group of blood proteins | called gamma globulins |
| gamma globulins are divided into 5 catergories: | M ( Igm); G (IgG); E ( IgE); A ( IgA) and; D ( IgD) |
| Most anti-bodies are immunoglobulin: | G |
| Cell mediated immune response | T cells . T4 calls are general of the T cells. |
| auto immune | body forms anti-bodies that react against it's own tissue ( self -immune) |
| Hypertsensitivity | is an abnormal condition characterized by excessive reaction to a particular stimulus |
| local reaction | one that occurs at the site where treatment or medication was administered |
| systemic reaction | one that is evidenced by generalized body symptoms ie: runny nose; itchy eyes; hives; and rashes |
| anaphylaxis | severe and sometimes fatal hypersensitive ( allergic) reaction to a previously encountered antigen |
Created by:
jdigennaro
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