Quiz on Micro- and Macrocirculation

What is Microcirculation?

• Circulation in large blood vessels

• Circulation in small blood vessels within organs

• Circulation of blood to and from organs

• Circulation of lymphatic fluid

What is Macrocirculation?

• Circulation of oxygen in the blood

• Circulation in small blood vessels

• Circulation of blood to and from organs

• Circulation in capillaries

What is the unit of absolute (or dynamic) viscosity?

• m²/s

• N s/m²

• Pa.s

• Centi poise (cp)

What is the condition for microcirculation regarding Reynolds number?

• Much smaller than 1

• Undefined

• Much greater than 1

• Equal to 1

What feature is associated with microcirculation?

• Low hematocrit

• High viscosity

• High hematocrit

• High flow resistance

What regulates flow resistance in microcirculation?

• Blood viscosity

• Vessel diameter

• Blood pressure

• Heart rate

What type of capillary endothelial cell is characterized by tight junctions?

• Discontinuous type

• Continuous type

• Transitional type

• Fenestrated type

What is the diameter of the aorta compared to a red blood cell?

• 20 times larger

• 200 times larger

• 2000 times larger

• 20000 times larger

What happens to blood flow in the venules?

• Blood slows down

• Blood speeds up

• Blood reverses direction

• Blood becomes more viscous

What type of capillary has distinct intercellular gaps?

• Continuous type

• Fenestrated type

• Discontinuous type

• Simple type