Blood🩸ℹ️

Question 1

diapedesis is ..

Answer 1

The ability to slip out of the capillary blood vessels.

Question 2

signals that prompt WBCs to leave the bloodstream at specific locations are ..

Answer 2

cell adhesion molecules displayed by endothelial cells forming the capillary walls at sites of inflammation

Question 3

leukocytes move through the tissue spaces by ..

Answer 3

amoeboid motion

Question 4

Amoeboid motion is ..

Answer 4

Formation of flowing cytoplasmic extensions that move them along

Question 5

positive chemotaxis is ..

Answer 5

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.

Question 6

leukocytosis is ..

Answer 6

The process of speeding up the leukocytes production as a normal response to an infection in the body.

Question 7

Granulocytes! which include ?

Answer 7

neutrophils, eosinophils, and basophils.

Question 8

Granulocytes characteristics:

Answer 8

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.

Question 9

What is making blood “thicker”
than pure water ?

Answer 9

Numerous cells and proteins suspended to it.

Question 10

Blood volume is about ..

Answer 10

5 liters.

Question 11

3 liters of the blood are _______ & about 2 liters are ___________

Answer 11

Plasma, RBCs’ respectively.

Question 12

Blood in the arteries is a brighter red than blood in the veins.

Why ?

Answer 12

because of the higher levels of oxygen found in the arteries.

Question 13

It has a pH of ___________, making it slightly _________.

Answer 13

7.35 - 7.45, Basic.

Question 14

Whole blood is about _________ times as viscous as water, indicating that it
is more resistant to flow than water.

Answer 14

4.5 - 5.5

Question 15

This viscosity is vital to the function
of blood.

Why that’s the matter ?

Answer 15

it can strain the heart and lead to severe cardiovascular problems.

Question 16

The red blood cell volume
(hematocrit) is about ..

Mention in both males and females.

Answer 16

Males: 45% - 52%

Females: 37% - 48%

Question 17

90% of blood plasma is ..

Answer 17

Water.

Question 18

Most of the blood is usually in which vessels?

Answer 18

Veins. 70%

Question 19

What can you found floating in
blood plasma ?

Answer 19

RBCs’
WBCs’
PLTs’

Question 20

Blood Function.

Mention 6

Answer 20

• Transport O2, CO2, and nutrients.
• Carrying cells and antibodies that fight infection.
• protects against disease through function of WBCs and antibodies
• bringing waste products to the kidneys and liver, which
  filter and clean the blood
• regulating pH, temperature, water content of cells
• forming blood clots to prevent excess blood loss