The Lymphatics

Question 1

the lymphatic system returns _____ to _____

Answer 1

extracellular fluid
bloodstream

Question 2

3 extracellular fluids

Answer 2

plasma
interstitial fluid
lymph

Question 3

plasma

Answer 3

seeps through capillary walls

Question 4

interstitial fluid

Answer 4

plasma that has seeped through the capillary walls and circulates among the body tissue

Question 5

lymph

Answer 5

when interstitial fluid drains out of the tissue and enters the lymphatic ducts

Question 6

seeps through capillary walls

Answer 6

plasma

Question 7

plasma that has seeped through the capillary walls and circulates among the body tissue

Answer 7

interstitial fluid

Question 8

when interstitial fluid drains out of the tissue and enters the lymphatic ducts

Answer 8

lymph

Question 9

how is lymphatic system different to circulatory (3)

Answer 9

no pump
one direction
lymph nodes

Question 10

capillaries are blind-ended structures in the _____

Answer 10

interstitial spaces

Question 11

capillary walls consist of

Answer 11

a single endothelial layer

Question 12

lymph travels superficial -> deep -> ____ -> _____ -> ____

Answer 12

nodes
towards chest
bloodstream

Question 13

nodes are an important component of the _____ system

Answer 13

RE

Question 14

nodes are ___ shaped accumulations of ___

Answer 14

bean (ovoid)
lymph tissue

Question 15

node size

Answer 15

1mm to 1-2cm

Question 16

nodes surrounded by

Answer 16

connective tissue capsule

Question 17

afferent vessels drain into node, carry lymph through ____ that are lined with _____

Answer 17

sinuses
phagocytic cells

Question 18

phagocytic cells in afferetn vessels function

Answer 18

filter out/destroy bacteria and malignant cells

Question 19

germinal centers in node produce and empty into what/when

Answer 19

produce lymphocytes
empty into lymph prior to leaving the node

Question 20

which vessels only ___enter/exit___ node at hilum

Answer 20

efferent only exit at hilum

Question 21

lymph nodes are a common side of primary infection T/F

Answer 21

F usually secondaru

Question 22

major node bearing areas in the retroperitoneum

Answer 22

iliac/hypogastric
aorta/IVC

Question 23

3 other lymphatic tissue

Answer 23

tonsils
thymus
spleen

Question 24

4 key clusters of nodes

Answer 24

axillary
cervical
inguinal
intestinal

Question 25

what is the cluster of nodes in the intestines known as

Answer 25

Peyer's patch

Question 26

what are the 2 vessels lymph ultimately drain into and what part of body do they drain

Answer 26

Rt lymphatic duct: drain RUQ thoracic duct: remaining 3/4 of body

Question 27

lymph is _____ fluid formation

Answer 27

extracellular

Question 28

lymph is similar to plasma except it has ____ and ____

Answer 28

higher albumin small # leukocytes/no erythrocytes

Question 29

lymph are _____ enzymes

Answer 29

digestive

Question 30

lymph flow is slow under resting conditions T/F

Answer 30

T

Question 31

what does lymph flow depend on

Answer 31

kneading action of muscles and valves

Question 32

4 functions of lymph system

Answer 32

phagocytosis immunity drainage excretion

Question 33

common sites for lymph nodes (scanning) (6)

Answer 33

para-aortic para-caval around panc renal/splenic hilum porta hepatis along iliac vessels

Question 34

are lymph nodes seen in the abdomen typically

Answer 34

no

Question 35

size of lymph nodes in abdomen

Answer 35

<1cm

Question 36

lymph nodes are ____ (echotexture) and have ____ echoes

Answer 36

homogenous low level

Question 37

enlarged para-aortic nodes may mimic a ____

Answer 37

aneursym