Mammalian Transport System Quiz

Veins do not require thick walls

• as they do not have to work harder

• they are required only occasionally

• the blood pressure declines while it gets to veins

• the blood pressures is immense

All arteries carry blood away from the heart, except

• pulmonary artery

• pulmonary vein

• aorta

• capillaries

Smooth muscles do not found in

• tunica intima

• tunica externa

• tunica media

• tunica medium

In mammals, blood flows from the left ventricle into the

• superior vena cava

• inferior vena cava

• lungs

• aorta

The thickest part in the three layers of arteries, is

• tunica intima

• tunica externa

• tunica media

• tunica medium

The distinctive characteristic of an artery wall is its

• strength only

• elasticity only

• rigidity

• strength and elasticity

Smooth muscles, collagen, and elastic fibers are found in

• tunica intima

• tunica externa

• tunica media

• inner endothelium

The return of the blood which is pumped through the left ventricle, and bring back through vena cava is called as

• non pulmonary circulation

• systemic circulation

• pulmonary circulation

• non systematic circulation

Presence of veins was demonstrated by

• Jan-Baptista van Helmont

• William Harvey

• Robert Hooke

• John Dalton

Inferior vena cava is formed through a combination of

• two arteries

• three arteries

• four arteries

• three veins