The circulatory system

Which of the following is incorrect regarding blood vessels

• Includes veins and arteries

• deliver and return blood from various structures in the body.

• divided into two main categories, arteries and veins

• can have high or low blood pressure depending on the structure

Arteries carry only oxygenated blood away from the heart to the limbs.

• True, Arteries main role is to carry oxygen rich blood to the body from the heart.

• False, the pulmonary Artery carries oxygen depleted blood from the heart to the lungs.

• True, because of the high blood pressure in arteries, their is only capabilities to carry oxygen rich blood.

• False, Some arteries contain valves which control the amount of oxygen and strip oxygen from arteries.

Which of the following correctly describes a structural component of arteries

• wider diameter than veins

• contain valves

• elastic walls

• high blood pressure

Which of the following describes a function of both arteries and veins?

• have elastic walls and smooth muscle

• carry deoxygenated blood away from heart

• carry oxygenated blood away and to the heart

• carry blood throughout the circulatory system

These blood vessels are the pathways leading into capilaries

• ventrioles

• artrioles

• veins

• arteries

These are blood vessels that allow blood from capillaries to get back to the veins.

• venules

• ventrioles

• arteries

• arterioles

The _____ nervous system regulates the diameter of the arteries.

• autonomic

• automatic

• Vasodilation

• Lymphatic

What keeps blood pressure constant so it can reach the furthest body parts.

• Elastic walls and smooth muscle, veins

• Elastic walls and smooth muscle, arteries

• Valves, veins

• Valves, arteries

What outlines the difference between vasodilation and vasoconstriction?

• Vasodilation is narrowing of blood vessels, vasoconstriction is the widening of blood vessels

• Vasodilation is the widening of blood vessels, vasoconstriction is the narrowing of blood vessels

• Vasodilation is relaxations, vasoconstriction is the widening of contraction of blood vessels

• Vasodilation keeps heat, vasoconstriction releases heat

Vasodilation is the widening of blood vessels and decreases blood flow

• True

• False