5 Questions
Which of the following statements about blood is true?
Blood makes up 8% of the body's weight
Which of the following is NOT a function of blood viscosity?
Transport of oxygen
What is the mean temperature of blood?
38 degrees Celsius
Which type of blood has a higher oxygen level?
Blood in arteries
What is the mean salinity of blood?
0.85%
Study Notes
Facts about Blood
- Blood is a fluid that circulates in the heart, arteries, capillaries, and veins of vertebrate animals.
- It carries nourishment and oxygen to all parts of the body and removes waste products.
- Blood makes up 8% of the body's weight.
- Males have 5-6 liters of blood, while females have 4-5 liters due to their different sizes.
- The mean temperature of blood is 38 degrees Celsius.
- Blood has a pH of 7.35-7.45, making it slightly basic.
- Blood is about 4.5-5.5 times as viscous as water, affecting its ability to clot, perfuse tissue, and influence vascular resistance.
- Blood in arteries is brighter red than blood in veins due to the higher level of oxygen.
- Whole blood has a viscosity of 4.5-5.5, while blood plasma has a viscosity of 2.0.
- The osmolarity of blood is 280-300mOsm/L, which is the concentration of solute particles per liter.
- The mean salinity of blood, mainly NaCl, is 0.85%.
- No artificial substances were mentioned in the text.
Test your knowledge about the fascinating world of blood with this quiz! Learn interesting facts such as its composition, volume differences between genders, and its average temperature. Challenge yourself and discover how much you know about this vital fluid in our bodies.
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