01/22 + 01/24 Flashcards
Blood consists of
Plasma and formed elements
What is the plasma?
The ECM of the blood
The plasma consists of
Water, protein, and nutrients
Formed elements are suspended within the
Plasma
What are the formed elements of the blood?
Cellular components like RBCs, WBCs, and platelets
What is the function of RBCs / Erythrocytes?
Transport Oxygen through body
What help form blood clots and prevent excessive bleeding?
Platelets
What are the functions of blood?
- Transports O2 and other nutrients, hormones, and ions
- Regulates body temperature, pH and fluid balance
- Provides protection
How does blood regulate body temperature?
It absorbs and redistributes heat
How does blood regulate body pH?
It has buffers which prevent changes in pH
How does blood help with fluid balance?
Its plasma proteins exert osmotic pressure to prevent fluid loss from the blood vessels to tissues
Plasma makes up how much of blood?
55%
How much of plasma is water?
90%
8% of plasma consists of
Proteins
What are some of the plasma proteins?
- Albumin
- Globulins
- Fibrinogen
Albumin is the most abundant protein found in plasma and functions in
Maintaining colloid pressure and blood vessel ability to hold onto water
Globulins are proteins found in the plasma that assist in
The immune system / antibodies
Fibrinogen is a plasma protein which plays a role in
Blood clotting
90% of plasma is water and 8% of it is plasma proteins. What is the remaining 2% of the plasma?
Hormones / ions / nutrients
RBCs, or Erythrocytes, make how much of blood?
45%
Blood has a buffy coat which is a
Clear layer that is made of platelets and WBCs
The Hematocrit value tells one about the
Proportion of whole blood that is RBCs
When one has Polycythemia that means they have
A high proportion of RBCs
All blood cells are formed due to
Hemocytoblasts
