Ch. 19 Blood Vessels

Which layer of the blood vessel wall receives innervation from the autonomic nervous system?

• Tunica Media (SNS)

• Tunica Intima

• Tunica externa

• Endomesium

Select the correct statement regarding blood vessel anatomy:

• The tunica media of veins is thicker than the corresponding layers in arteries.

• The tunica externa forms a smooth surface that minimizes friction from blood flow.

• The walls of all blood vessels have three distinct layers that surround the lumen.

• The tunica intima contains the endothelium that lines the lumen of all vessels.

Which type of artery is correctly paired with its functional descriptor?

• Muscular artery; distributing artery

• Elastic artery; resistance vessel

• Muscular artery; conducting artery

• Elastic artery; exchange vessel

Which layer is responsible for maintaining blood pressure and circulation?

• Tunica Intima

• Plasma

• Tunica Media

• Tunica Externa

Where are the thick-walled elastic arteries located?

• near the heart, aorta and its major branches

• in the venules

• Kidneys

• Distal to the heart, pulmonary trunk

What is another name for elastic arteries?

• Veins

• conducting arteries

• Muscular arteries

• arterioles

What do elastic arteries distally give way to?

• Capillaries

• Arterioles

• Muscular Arteries

• Elastic Arteries

What is the job of muscular arteries?

• resistance vessels

• deliver blood to specific organs

• deliver nutrients to specific organs

• distribute oxygen

What is another name for muscular arteries?

• Distributing arteries

• conduction

• resistance vessels

• exchange site

What is the diameter range of muscular arteries?

• 8-10 mm

• 0.8-3 mm

• a little finger to lead of a pencil

• a thumb to a garden hose.