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HOSA: Med Term Lymphatic/Immune Part 1

Anatomy and Physiology30 CardsCreated 2 months ago

This deck covers key terms and concepts related to the lymphatic and immune systems, including definitions of various cells, fluids, and processes.

purpose of lymphatic system

absorb fat & fat-soluble vitamins thru lacteals, remove waste & destroy pathogens, return filtered lymph to veins
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Key Terms

Term
Definition
purpose of lymphatic system
absorb fat & fat-soluble vitamins thru lacteals, remove waste & destroy pathogens, return filtered lymph to veins
define LEUKOCYTE
white blood cell
define MUCOUS
adjective describing specialized membranes that line body cavities
define MUCUS
noun; fluid secreted by mucous membranes
define LACTEALS
specialized structures that absorb fats that can’t go thru blood & transforms them to be put in blood
describe INTERSTITIAL FLUID
plasma from arterial blood from arterioles to capillaries flowing into spaces between cells of tissues that deliver nutrients, O2, & hormones & bring ...

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TermDefinition
purpose of lymphatic system
absorb fat & fat-soluble vitamins thru lacteals, remove waste & destroy pathogens, return filtered lymph to veins
define LEUKOCYTE
white blood cell
define MUCOUS
adjective describing specialized membranes that line body cavities
define MUCUS
noun; fluid secreted by mucous membranes
define LACTEALS
specialized structures that absorb fats that can’t go thru blood & transforms them to be put in blood
describe INTERSTITIAL FLUID
plasma from arterial blood from arterioles to capillaries flowing into spaces between cells of tissues that deliver nutrients, O2, & hormones & bring waste & protein when leaving; 90% returning fluid
interstitial fluid is also known as
intercellular or intertissue fluid
describe LYMPH
10% return fluid that is not interstitial fluid; clear, faintly yellow & watery w/electrolytes & proteins; remove dead cells, debris, & pathogen
define LYMPHATIC CIRCULATORY SYSTEM
upward movement, fluid filtered by lymph nodes & depend on pumping motion of muscles to move liquid
aka: lymph
lymphatic fluid
aka: lymphatic circulatory system
secondary circulatory system
describe LYMPHATIC CAPILLARIES
microscopic, sealed on 1 side & tubes near surface; separate to bring lymph & close to push up & forward
define LYMPHATIC VESSELS
vessels deep in tissue w/valves to prevent backflow & form ducts to drain
describe RIGHT LYMPHATIC DUCT
right side of head & neck, upper right body quadrant & right arm; empty into right subclavian vein
thoracic duct
largest lymphatic vessel; left side of head & neck, LUG, left arm, lower trunk, legs’ empty into left subclavian vein
describe LYMPH NODES
lymphocytes destroy harmful stuff in lymph & filter to rejoin circulation; 400-700 in body in 3 groups (cervical, axillary, & inguinal)
define LYMPHOCYTES
leukocytes formed in bone marrow as stem cells that defend against antigens
aka: lymphocytes
lymphoid cells
define NATURAL KILLER CELLS
lymphocytes kill cancer/infected cells
define B CELLS
lymphocytes deal w/humoral immunity & immunoglobulins
aka: b cells
b lymphocytes
define HUMORAL IMMUNITY
turn plasma cells & secrete immunoglobulins
define IMMUNOGLOBULINS
antibody destroy antigen & then turns into plasma cell to secrete antibodies
define T CELLS
help in cell-mediated immunity
aka: t cells
T lymphocytes
describe CYTOKINES
group of proteins released by T-cells to act as intracellular signals for immune response; types = cytotoxic, helper, natural killer
define INTERFERONS
made in response to antigens to activate immune system, slow/stop virus multiplication, & signal cells to increase defense
define INTERLEUKINS
direct B & T cells to divide & proliferate (+ other stuff)
components of cell-mediated immunity
interleukins, interferons, cytokines
define CYTOTOXIC CELLS (T8)
attach to antigens & destroy