Blood🩸ℹ️ Flashcards
diapedesis is ..
The ability to slip out of the capillary blood vessels.
signals that prompt WBCs to leave the bloodstream at specific locations are ..
cell adhesion molecules displayed by endothelial cells forming the capillary walls at sites of inflammation
leukocytes move through the tissue spaces by ..
amoeboid motion
Amoeboid motion is ..
Formation of flowing cytoplasmic extensions that move them along
positive chemotaxis is ..
following the chemical trail of molecules released by damaged cells or other leukocytes they gather there in large numbers to destroy foreign substances and dead cells.
leukocytosis is ..
The process of speeding up the leukocytes production as a normal response to an infection in the body.
Granulocytes! which include ?
neutrophils, eosinophils, and basophils.
Granulocytes characteristics:
roughly spherical
They are larger and much shorter-lived than erythrocytes.
( rounded nuclear masses connected by thinner strands of nuclear material )
stain quite specifically with Wright’s stain.
What is making blood “thicker”
than pure water ?
Numerous cells and proteins suspended to it.
Blood volume is about ..
5 liters.
3 liters of the blood are _______ & about 2 liters are ___________
Plasma, RBCs’ respectively.
Blood in the arteries is a brighter red than blood in the veins.
Why ?
because of the higher levels of oxygen found in the arteries.
It has a pH of ___________, making it slightly _________.
7.35 - 7.45, Basic.
Whole blood is about _________ times as viscous as water, indicating that it
is more resistant to flow than water.
4.5 - 5.5
This viscosity is vital to the function
of blood.
Why that’s the matter ?
it can strain the heart and lead to severe cardiovascular problems.
