Ch 14 Lymphatic (Immune)
About this set
Created by:
DrDavila Plus on June 20, 2012
Subjects:
BIO104: Human Anatomy & Physiology II
Description:
Dr Davila
Medical Careers Institute, ECPI University
Human Anatomy & Physiology II
BIO 104
Classes:
Log in to favorite or report as inappropriate.
Order by
41 terms
Terms | Definitions |
|---|---|
 immune system function | 1. produce lymphocytes, which provide immunity; 2. return lymph [interstitial fluid, or serum] and nutrients [eg, fat, electrolytes, etc.] to blood; 3. resist infection, or invasion of pathogens 4. remove and destroy cancerous cells and toxins |
| pathogen | microscopic organsims that cause disease; eg, bacteria, viruses, fungi, parasites, |
| immunity | ability to resist infection and disease |
| lymph | watery fluid with leukocytes in lymphatic vessels; ♪ serum-like fluid originally ejected from capillaries, bathed over cells as interstitial fluid, and seeped into lymphatics, becoming lymph. Same Fluid, 3 places♪ |
| interstitial fluid | watery fluid between body cells; blood serum ejected from capillaries becomes interstitial fluid |
| lymphatic vessels | vessels that carry lymph under low-pressure; similar to veins: thin wall, large lumen, valves; carry lymph from tissue to lymph nodes, then return to blood; aka lymphatics, |
| right lymphatic duct | collects lymph from upper right quadrant of body; empties into right subclavian vein |
| thoracic duct | collects lymph from remaining 3/4 of body: upper left quadrant and entire lower portion of body; empties into the left subclavian vein; aka left lymphatic duct, |
| lymph node | encapsulated lymphatic organ located along lymph vessel; filter lymph for pathogens and cancer; lymphocytes may divide here [mitosis] causing swelling and firming; |
| 3 superficial lymph nodes | cervical, axillary, and inguinal lymph nodes; palpated to assist in diagnosis |
| tonsils | 3 pairs of non-encapsulated lymphatic tissue found in oral cavity; palatine, adenoids, lingual; "front-line" protection against pathogens entering body; |
| palatine tonsils | pair of non-encapsulated lymphatic tissue found on both lateral sides of soft palate [posterior roof of mouth] |
| pharyngeal tonsils | pair of non-encapsulated lymphatic tissue in nasopharynx; aka adenoids |
| lingual tonsils | pair of non-encapsulated lymphatic tissue found on posterior aspect of tongue; requires a tongue depressor to view clearly |
| spleen | largest lymphatic organ found in LUQ of abdomen; filters old RBCs, and produces lymphocytes/monocytes: hence, it's pink; in fetus, also produces RBCs |
| thymus | lymphatic organ superior to heart [looks like hat on heart]; T-lymphocytes mature here |
| Peyer's patches | patches of lymphatic tissue in the ileum of small intestine; protect body from ingested pathogens |
| natural immunity | immunity not specific to particular disease, will block or attack any pathogen; cannot distinguish one attack from another; eg, physical barriers (skin, mucus tears), fever, phagocytes, inflammation, aka innate immunity, |
| acquired immunity | immunity to a disease that is not innate but has been acquired during life; formation of antibodies and lymphocytes after exposure to antigen; can be active or passive AND naturally-acquired or induced |
| passive immunity | receiving antibodies made by another organism; eg, from mother or another animal for antivenom |
| active immunity | organism actively makes its own antibodies; eg, after illness or vaccination |
| naturally acquired active immunity | organism makes its own antibodies after naturally falling ill |
| induced active immunity | organism makes its own antibodies after receiving a vaccination or inoculation |
| naturally acquired passive immunity | organism receives antibodies made by its mother, either in the womb through placenta, or through mother's milk |
| induced passive immunity | receiving antibodies made by another animal, as in antivenom; usually made in sheep, horse, or goat |
| immunization | increasing resistance to infection by exposing body to inactivated pathogen and inducing active immunity |
| autoimmune disorder | class of diseases in which the immune system targets normal body tissues and organs, eg Type 1 diabetes, multiple sclerosis, lupus |
| allergy | exaggerated or inappropriate immune response to an allergen; aka hypersensitvity |
| allergen | any antigen that may cause allergic response to occur; eg pollen, ant-bite venom |
| anaphylaxis | life-threatening allergic reaction; symptoms include: 1. bronchoconstriction [causes difficulty breathing], 2. vasodilation [causes hives, decreased blood pressure, generalized edema]; may lead to circulatory collapse [of blood vessels]; |
| lymphocyte | 1 of 3 types of WBC (B-/T-/NK-lymphocyte)providing specific immunity (B & T) and some innate immunity (NK); smallest WBCs; 25% of total WBC population |
| B lymphocyte | differentiates in bone; makes antibodies performing antibody-mediated immunity; aka plasma cell |
| T lymphocyte | differentiates in thymus; performs cell-mediated immunity |
| NK cell | type of lymphocyte performing a nonsppecific immunity called immunological surveillance; kills viuses, other pathogens, and canerous cells |
| antigen | any substance (toxin, cell-surface protein) that stimulates production of antibodies; "anything body may see as foreign" |
| antibody | immunoglobulin protein released by B-lymphocytes in response to antigen; antibody sticks to antigen; antibody signals phagocytic eosinophils |
| immunoglobulin | class of proteins produced by B-lymphocytes, which function as antibodies; 5 types: IgG most common IgM "prototype" antibody |
| nonspecific defense | block or attack any potential pathogen; cannot distinguish one attack from another, so acts characteristically regardless |
| 7 nonspecific defenses | Physical barriers Inflammation Fever Phagocytes Immunological surveillance Complement Interferons |
| inflammation | body tissue response to injury or irritation; 4 signs: *swelling pain redness heat* |
| blood borne infections | blood-borne infections (ie HIV and Hepatitis C) require intimate contact with blood or other body fluids; casual contact with hands, food, or sneezes cannot transmit these diseases |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.
Set Champions
Scatter Champion
27.6 secs by jazgay2369
Space Race Champion
1,060 points by jazgay2369
Speller Champion
98.8% correct by jazgay2369