16-1 Flashcards
liquid connective tissue that consists of cells surrounded by extracellular matrix?
Blood
What are the 3 general functions of blood:
- Transportation
- Regulation
- Protection
What does blood transport?
- oxygen
- carbon dioxide
- nutrients
- waste
- heat
What does blood regulate?
- pH
- temp
- osmotic pressure
What does blood protect against?
blood clots and disease
Oxygen binds to what molecule in RBCs?
iron
What is the temp of blood?
38C/100.4F
pH of blood is slightly what?
what is the range?
alkaline
7.35-7.45
Blood constitutes how much of our total body weight?
8%
average blood volume for males?
5 -6 liters
average blood volume for females?
4-5 liters
whole blood is composed of what 2 portions?
- blood plasma
- formed elements
How much of whole blood is blood plasma?
and formed elements?
55%
45%
More than 99% of formed elements are ________,
the remaining 1% is ________.
RBCs
WBCs
What is hematocrit?
total RBCs in the total amount of blood
Hematocrit for males
42%-52%
Hematocrit for females?
37%-47%
What is buffy coat made of?
WBCs and platelets
Blood plasma is ___% water,
___% proteins,
and __% other solutes
91.5%
7%
1.5%
proteins in blood are synthesized by?
the liver
most plentiful plasma proteins are what?
albumins
Male RBCs
5.4 million
Female RBCs
4.8 million
What gives whole blood its red color?
hemoglobin
How long do RBCs live?
120 days
WBC normal range
5k-10k
How long do WBC live?
few hours to a few days
How are WBC and RBC different?
WBC have nuclei and other organelles
and no hemoglobin
What are the 5 types of WBCs?
- neutrophils
- eosinophils
- basophils
- monocytes
- lymphocytes
What are granular leukocytes?
- neutrophils
- eosinophils
- basophils
what % of WBC are neutrophils?
50-70%
What do neutrophils do?
destroy bacteria
what % of WBC are eosinophils?
1-5%
What do eosinophils do?
- suppress effects of histamine in allergic reactions
- destroy parasitic worms
what % of WBC are basophils?
0-1%
What do basophils do?
release heparin, histamine, and serotonin
inflammatory response in allergic reactions
Lymphocytes have what 3 cells?
T cells
B cells
Natural killer cells
what % of WBC are lymphocytes?
20-40%
what do lymphocytes do?
mediates immune responses, including antigen antibody reactions
B cells will transform into _______ that secrete ________ .
plasma cells
antibodies
what % of WBC are monocytes?
1-6%
what do monocytes do?
Phagocytic (transform into wandering macrophage)
Normal platelet range?
150,000 – 400,000/uL
How long do platelets live?
5-9 days
what do platelets do?
Form platelet plug during hemostasis
The process by which the formed elements of blood develop is called
Hemopoiesis
what is the primary site of hemopoiesis?
Red bone marrow
Pluripotent Stem Cells develop into what 2 different cell types?
- Myeloid
- Lymphoid
Myeloid stem cells differentiate into what 7 types of cells?
- Red cells
- Platelets
- Eosinophils
- Mast cells
- Basophils
- Neutrophils
- Monocytes
what are the 3 lymphoid stem cells?
- T Cells
- B Cells
- Natural Killer Cells
what are the 2 types of immature cells?
- bands
- blast
what % is considered abnormal and maybe due to a left shift?
>10%
what is a sequence of responses that stops bleeding when blood vessels are injured?
Hemostasis
what are 3 mechanisms that can reduce loss of blood from blood vessels?
- Vascular spasm
- Platelet plug formation
- Blood clotting (coagulation)
what is vascular spasms?
blood vessels contract
what is Platelet Plug Formation?
platelets stick together
what is blood clotting?
blood thickens to gel
what is plasma minus the clotting proteins?
serum
what are the 3 stages of clotting?
- Prothrombinase is formed
- Prothrombinase converts prothrombin into thrombin
- Thrombin converts fibrinogen into fibrin
what interferes with the clotting process?
smoking
what activates to begin digesting and dissolving fibrin threads thus removing the clot?
plasmin
A clot is also called a
Thrombus
A mobile clot is a
Embolus
Antigens are also called?
Agglutinogens
2 major blood groups:
- ABO
- Rh
only antigen A
type A blood.
only antigen B
type B
both A and B antigens
type AB
neither antigen A nor B
type O
perfect 1 to 1 to 1 ratio
RBCs, plasma, platelets
People with Rh antigen are considered
Rh positive
People without Rh antigen are considered
Rh negative
One unit will usually bring up the hemoglobin by _____?
1 g/dL
Current guidelines suggest giving units once hemoglobin falls below
7-8g/dL
for every unit of packed RBCs given you should give a unit of ________?
plasma and platelets
RBC’s can be stored in refrigerator up to?
35 days
Frozen RBC’s can be frozen for up to
10 years
After deglycing, blood can be stored in refrigerator for?
14 days
Before transfusion, the recipient and donor’s blood need to be _________, to avoid __________
typed and crossmatched
hemolytic transfusion reactions
What are S&S of hemolytic transfusion reactions?
Fever, chills, backache, headache
What do you do to treat Hemolytic transfusion reactions?
- Stop transfusion immediately
- Acetaminophen
- Diphenhydramine
- Hydrocortisone