17: Blood and blood cells Flashcards
1
Q
What are the 3 functions of blood?
A
Transportation, Protection, Regulation
2
Q
What does blood transport?
A
Dissolved gases, nutrients, hormones and metabolic wastes
3
Q
What does our blood protect?
A
The blood restricts fluid losses through damaged vessels. Platelets in the blood and clotting proteins minimize blood loss when a blood vessel is damaged.
4
Q
What does our blood regulate?
A
pH + electrolyte composition of the interstitial fluids.
Body temperature
5
Q
What is the composition of blood?
A
- Cellular and liquid components
- Specialized connective tissue: blood cells, plasma
6
Q
What is the blood volume for males and females?
A
Males: 5-6 litres
Females: 4-5 litres
7
Q
What is the pH of blood?
A
~ 7.35 - 7.45
