Blood flow and circulation in vertebrates

High viscosity can be described as...

• a liquid that flows quickly

• a liquid that flows slowly

What are factors that affect resistance of blood flow in the cardiovascular system?

• viscosity, Vessel diameter (radius), length of vessels

• heart attack, ambulism, exercise

• Arteries and veins

• Aorta flow to pulmonary veins

What are the upper chambers of the heart called?

• Arteries

• Ventricles

• Atria

• Vessels

What are the lower chambers of the heart called?

• Arteries

• Ventricles

• Atria

• Vessels

Type of blood vessels taking blood to the heart

• Venules
• Veins
• Capillaries
• Arteries

Type of blood vessels taking blood away from the heart

• Venules
• Veins
• Capillaries
• Arteries

___________ the contraction of blood vessels

• Vasoconstriction

• Vasodilation

• Hypertension

• Viscosity

Which factors affect on blood flow

• Blood volume

• Blood viscosity

• Blood vessels elasticity

• Blood vessels diameter

• all above

How many chambers in a fish heart?

• one

• two

• three

• four

How many chambers in a reptile heart?

• one

• two

• three

• four