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Flashcards in Spleen Deck (9)
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1

what is the spleen HCT level compared to the rest of the body

high!

2

what is the function of the spleen

phagocytic
immunologic
RBC and platelet storage

3

what does a sinus consist of?

endothelium with fenestrated basement membranes

4

what is unique about sinuses in cats?

they are highly fenestrated = poor pitting function = howell jolly bodies and heinz bodies

5

when does splenic contraction occur?

with epinephrine or sympathetic nerve stimulation

6

which 3 animals store a lot of blood in the spleen?

dog, pig, horse

7

why does HCT go up immediately after a blood draw?

because the spleen contracts and raises HCT because it has a higher PCV than the rest of the body

8

what do RBCs have to do to enter a splenic sinus?

it has to bend (not in cats). a rigid inclusion breaks up and cell membrane has to reform after going through the sinus

9

why do RBCs not have to bend to enter splenic sinuses in cats?

Sinus in cats is fenestrated and RBCs can easily fit through

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