Lymphatic System

Front 1

lacteals

Back 1

highly specialized lymphatic capillaries

present in the fingerlike villi of the inestinal mucosa

Front 2

chyle

Back 2

fatty lymph

lymph draining from the digestive viscera, delivered to the blood via the lymphatic stream

Front 3

lymphatic trunk

Back 3

lumbar trunk
bronchomediastinal trunk
subclavian trunk
jugular trunk
intestinal trunk

Front 4

right lymphatic duct

Back 4

drains lymph from the right upper arm and the right side of the head and thorax

Front 5

thoracic duct

Back 5

receives lymph from the rest of the body

Front 6

Lymphocytes are produced in

Back 6

red blood marrow

Front 7

Lymphocytes mature into

Back 7

T cells or B cells

Front 8

function of the T cells

Back 8

manage the immune response, some of them directly attack and destroy infected cells

Front 9

function of the B cells

Back 9

protect the body by producing plasma cells

Front 10

dendritic cells

Back 10

capture antigens and bring them back to the lymph nodes

Front 11

reticular cells

Back 11

fibroblast-like cells that produce the reticular fiber stroma

Front 12

stroma

Back 12

the network that supports the other cell types in the lymphoid organs

Front 13

lymphoid tissue functions

Back 13

houses and provides a proliferation site for lymphocytes

furnishes an ideal surveillance vantage point for lymphocytes and macrophages

Front 14

lymphoid tissues are composed of

Back 14

reticular connective tissue

Front 15

lymphoid follicles (nodules)

Back 15

lack a capsule

have lighter-staining centers called germinal centers

Front 16

lyph node functions

Back 16

act as lymph "filters"

help activate the immune system

Front 17

the 2 regions of a lymph node

Back 17

cortex (superficial part)
medulla

Front 18

medullary cords

Back 18

thin inward extensions from the cortical lymphoid tissue

define the medulla

Front 19

lymphoid organs are composed of

Back 19

reticular connective tissue

Front 20

spleen's most important function

Back 20

blood cleansing (extracts aged and defective blood cells and platelets from the blood)

Front 21

spleen's other three functions

Back 21

salvages iron for making hemoglobin

is a site of erythrocyte production in the fetus

stores blood platelets

Front 22

white pulp

Back 22

spleen

areas composed mostly of lymphocytes suspended on reticular fibers

Front 23

white pulp function

Back 23

involved with the immune functions of the spleen

Front 24

red pulp

Back 24

all remaining splenic tissue, the venous sinuses, and the splenic cords

Front 25

red pulp function

Back 25

disposing of worn-out red blood cells and bloodborne pathogens

Front 26

thymus location

Back 26

in the inferior neck and extends into the superior thorax

Front 27

thymus functions

Back 27

T lymphocyte maturation

Front 28

tonsils function

Back 28

gather and remove many of the pathogens entering the pharynx in the food or in inhaled air

Front 29

palatine tonsils locaiton

Back 29

on either side at the posterior ends of the oral cavity

Front 30

lingual tonsils location

Back 30

a lumpy collection of lymphoid follicles at the base of the tongue

Front 31

pharyngeal tonsil location

Back 31

in the posterior wall of the nasopharynx

Front 32

tubal tonsils location

Back 32

surround the openings of the auditory tubes into the pharynx

Front 33

Peyer's patches location

Back 33

in the wall of the distal portion of the small intestine

in the wall of the appendix

Front 34

Peyer's patches function

Back 34

to destroy bacteria

to generate "memory" lymphocytes for long-term immunity