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Flashcards in Spleen Deck (9)
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1
Q

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

A

high!

2
Q

what is the function of the spleen

A

phagocytic
immunologic
RBC and platelet storage

3
Q

what does a sinus consist of?

A

endothelium with fenestrated basement membranes

4
Q

what is unique about sinuses in cats?

A

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

5
Q

when does splenic contraction occur?

A

with epinephrine or sympathetic nerve stimulation

6
Q

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

A

dog, pig, horse

7
Q

why does HCT go up immediately after a blood draw?

A

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

8
Q

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

A

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

9
Q

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

A

Sinus in cats is fenestrated and RBCs can easily fit through

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