vasculature & lymphatic
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Created by:
lynnmw1208 on February 1, 2012
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55 terms
Terms | Definitions |
|---|---|
 arteries | vessels that take blood away from heart |
| veins | vessels that return blood to the heart |
| capillaries | functional unit of blood vessels |
| vaso vasorum | blood vessels to the vessels |
| tunica interna | consist of endothelial lining and internal elastic membrane |
| endothelial lining | innermost lining of blood vessels; simple squamous; become capillaries |
| internal elastic membrane | allow blood vessels to stretch and snap back |
| tunica media | muscular layer; multi unit smooth muscle |
| vasoconstriction | norepinephrine causes blood vessels to constrict; BP increases |
| vasodilation | blood vessels increase in size; BP decreases |
| tunica externa | connective tissue sheath |
| arteries vs veins | arteries are thicker because of high pressure; veins have valves |
| capillaries | continuous and fenestrated |
| fenestrated | leaky for filtration |
| choroid plexus | group of ependemal cells that form CSF |
| sinusoids | occur in liver |
| glomerulus | occur in kidneys (nephron) to filter blood and make urine |
| precapillary sphincter | regulate blood flow through capillary |
| ductus venosus | liver bypass in fetal heart |
| umbilical vein | have 1 of these in fetal heart |
| umbilical arteries | have 2 of these in fetal heart; become internal illiacs; take blood back to placenta |
| foramen ovale | hole in interatrial septum; lets blood go from rt. atrium to lt. artium; pulmonary shunt (bypass lungs) in fetus heart |
| ductus arteriosus | blood vessel between pulmonary trunk and aorta in fetus heart; pulmonary shunt |
| adult remnants | ligamentum venosus, fossa ovalis, ligamentum arteriosus, umbilical ligaments |
| venuole | smallest vein |
| gases | move across cell membrane by diffusion |
| fluid flow | -fluid forced out of capillary by high hydrostatic pressure (BP) -reabsorption and absorption of fluid from the interstitium is caused by osmotic pressure |
| cisterna chyli | bottom of thoracic duct |
| Rt lymphatic drainage | drainage from rt. head, arm and chest drain into rt. lymphatic duct and dumps into Tr. subclavian vein |
| Rest of body | lymph system drains into thoracic collecting duct then drains into Lt. subclavian vein |
| lymphatic organs | tonsils, phangeal (adenoids), palantine, lingual |
| thymus | where T- cells develop/mature; active until end of puberty then starts to involute |
| thymosines | hormones that regulate T-cell development |
| spleen | organ that does blood cellular filtration |
| malt | mucosa associated lymphoid tissue |
| peyers patches | blobs of lymphatic tissue in the small intestines |
| lymph node | multiple afferent vessels enter, fluid sloshes around inside to filter, one vessel exits |
| lymph nodules | triangular area inside lymph node |
| germinal center | WBC are born through mitosis and migrate to outside area as they mature |
| innate immunity | aka congenital; what you're born with; ~ 2 month supply of antibodies from mom |
| helper T cell | CD-4; activate cytotoxic t cell |
| cytotoxic t cell | CD-8; kills antigen presenting cell |
| immature B cell | (naive) don't know how to make antibodies yet |
| immunocompetent B cells | know how to fight antibodies; make plasma cells to kill the rest of the virus |
| Memory B cell | future immune response; already immunocompetent |
| Memory T cells | future immune response; It recognizes future antigens making the immune response faster |
| plasma cell | produces antibodies to kill antigens |
| natural passive AI | antibodies given in breast milk from mom |
| natural active AI | common cold-> can't avoid it; exposed to the antigen |
| induced passive AI | given antibodies such as rhogam |
| gamma globulin | shot loaded with antibodies |
| artificial/induced active AI | vaccine |
| live vaccine | live virus; give strong and rapid response |
| attenuated vaccine | wounded virus; weaker response |
| dead virus | takes place of APC to start immune response; weakest immune response |
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