Components of blood Flashcards
With open circulation, the fluid __________
is continuous with the fluid surrounding all body cells
Specialized fluid in the closed circulatory systems of vertebrates
Blood
What type of tissue is blood
Connective
What are cells of blood surrounded by
A liquid matrix called plasma
What percent of the volume of blood do the cellular components occupy
45
What is plasma composed of
Inorganic salts as dissolved ions, sometimes called electrolytes and water
What do plasma proteins help to do
Influence blood pH and help maintain osmotic balance between blood and interstitial fluid, some help with lipid transport, immunity and blood clotting
Plasma is similar to interstitial fluid but______
has a much higher protein concentration
Types of cells in the blood plasma
RBC and WBC
Function of red blood cells
Transport O2
Another name for red blood cells
erythrocytes
Function of white blood cells
Function in defense
Another name for white blood cells
Leukocytes
Platelets
Fragments of cells involved in clotting
What do red blood cells contain
Hemoglobin
Hemoglobin
The iron containing protein that transports O2
Each molecule of hemoglobin binds up to ____ molecules of O2
4
What do RBC lack
nuclei and mitochondria
Disease caused by abnormal hemoglobin proteins that form aggregates
Sickle cell
What can sickle cells do
Rupture or block blood cells
Types of white blood cells
- Monocytes
- Neurtophils
- Basophils
- Eosinophils
- Lymphocytes
Function of WBC
Function in defense either by phagocytizing bacteria and debris or by mounting immune responses against foreign substances
Where are WBC found
Both inside and outside the circulatory system
Platelets function
Blood clotting
Coagulation
the formation of a solid clot from liquid blood
How are clots formed
A cascade of complex reactions converts inactive fibrinogen to fibrin
A blood clot formed within a blood vessel is called ________ and can block blood flow
Thrombus
Where do blood cells develop from
A common source of stem cells in the red marrow of bones (especially in the ribs, vertebrae, sternum, and pelvis)
Erythropoietin
Hormone that stimulates erythrocyte production where O2 delivery is low
What is recombinant EPO used for by doctors
To treat anemia
