The Spleen

Question 1

RE system includes all cells and tissues that exhibit ____

Answer 1

phagocytosis

Question 2

RE is one of the body’s major systems against

Answer 2

infection

Question 3

hematopoiesis

Answer 3

formation of blood cells

Question 4

hematopoiesis in the fetus (3)

Answer 4

spleen
liver
bone marrow

Question 5

hematopoiesis postnatally

Answer 5

bone marrow

Question 6

RE system includes (7)

Answer 6

brain
blood
spleen
liver
thymus
bone marrow
lymph nodess

Question 7

thrombovytes AKA

Answer 7

platelets

Question 8

leukocytes play a role in ____

Answer 8

immunity

Question 9

leukocytosis and what it is seen with

Answer 9

increased WBC may be seen in the presence of infection

Question 10

leukopenia and what it is seen with

Answer 10

decreased WBC may be seen with drug/chemical toxicity, viral infection

Question 11

there are ___ different types of WBC but we only need to know that they can be either ____ or ____

Answer 11

5
phagocytic
non-phagocytic

Question 12

3 parts of immune response

Answer 12

recognition (alien or not)
produce antibodies or antitoxins
produce memory cells

Question 13

humoral immune respone

Answer 13

atibodies (gamma globulins) are liberated into the plasma by committed lymphocytes

Question 14

cell mediated immune response

Answer 14

lymphocyte produces antitoxins that are retained within the lymphocyte cells
attaches to antigen -> secretes antitoxin
antigen and lymphocyte both die

(romeo and juliete)

Question 15

what is the largest unit of the RE system

Answer 15

spleen

Question 16

spleen develops around the ____ of gestation

Answer 16

5th week

Question 17

spleen arises from the ___derm

Answer 17

mesoderm

Question 18

hematopoesis in spleen starts at about ____ weeks and ends ___

Answer 18

11 weeks
after birth

Question 19

spleen is located along the long axis of the ___ rib

Answer 19

10t

Question 20

3 ligaments that anchor spleen

Answer 20

gastrosplenic
splenorenal
phrenocolic (hammock)

Question 21

4 things medial to spleen

Answer 21

stomach
tail of pancreas
splenic flexure
left kidney

Question 22

stomach is ___ to spleen

Answer 22

ant

Question 23

length of spleen is usually ___ but we dont want it over ___

Answer 23

11cm
12cm

Question 24

width of spleen
height of spleen

Answer 24

7-8cm
3-4cm

Question 25

moderate splenomegaly vs severe splenomegaly

Answer 25

>12cm-18cm vs >18cm

Question 26

spleen is enlarged if it is more than ___ the kidney size of if you visualize a flattened ____ kidney

Answer 26

2x caudal

Question 27

main spleen vessels course through the

Answer 27

splenorenal ligament

Question 28

is spleen essential to life

Answer 28

no

Question 29

spleen is divided into ___ and these contain 2 types of ___ : ____ and ___

Answer 29

lobules pulp red white

Question 30

red pulp (what, contains)

Answer 30

venous component of spleen splenic sinuses and splenic cords phagocytic cells line the sinusoids

Question 31

white pulp (what, contains, produces)

Answer 31

tiny islands of lymphatic tissue in the spleen contains lymphocytes and macrophages produces antibodies

Question 32

RE function of spleen (2)

Answer 32

produce lymphocytes and antibodies store iron and metabolites

Question 33

organ specific function of spleen (3)

Answer 33

filter blood blood reservoir erythropoiesis (fetus)

Question 34

3 patient positions for spleen

Answer 34

supine decubitus RPO

Question 35

patient arm position for spleen

Answer 35

extend/relax arm over head

Question 36

spleen is very ____ (texture)

Answer 36

homogenous

Question 37

spleen is ____ echogenic than kidney

Answer 37

more

Question 38

spleen is ___ or slightly _____ to liver

Answer 38

isoechoic more echogenic

Question 39

pseudoperisplenic lesion

Answer 39

occurs in thin patients L lobe liver superior to spleen mimics sub capsular hematoma/abscess

Question 40

what may be mistaken for a spleen mass

Answer 40

fluid filled stomach and tail of panc

Question 41

born again spleen

Answer 41

hypertrophy of an accessory spleen or other splenic tissue post splenectomy