What are resistance vessels?

What are resistance vessels?

A resistance artery is small diameter blood vessel in the microcirculation that contributes significantly to the creation of the resistance to flow and regulation of blood flow. Resistance arteries are usually small arteries or arterioles and include precapillary sphincters.

Why are arteries termed resistance vessels?

Together, the small arteries and arterioles represent the primary vessels that are involved in the regulation of arterial blood pressure as well as blood flow within the organ. Therefore, these vessels are referred to as resistance vessels. As arterioles become smaller in diameter, they lose their smooth muscle.

Which of these blood vessels are called resistance vessels quizlet?

Hanging diameter changes resistance to blood flow, and so arterioles are called resistance vessels. When arterioles constrict, the tissues served are largely bypassed. When arterioles dilate, blood flow into the local capillaries increases dramatically.

What are the names and functions of the three main types of blood vessels quizlet?

Terms in this set (3)

• Arteries. which carry blood away from the heart.
• Capillaries. enable the exchange of water and chemicals between the blood and the tissues.
• Veins. which carry blood from the capillaries back toward the heart.

What is resistance and capacitance vessels?

The resistance vessels include small arteries, arterioles, and precapillary sphincters. Capacitance vessels include small and large veins. Capacitance vessels have great capacity to distend. For a similar rise in pressure, capacitance vessels may accommodate 20 times more blood than resistance vessels.

What are the names and functions of the three main types of blood vessels?

The Three Major Types of Blood Vessels: Arteries, Veins, and Capillaries. Blood vessels flow blood throughout the body. Arteries transport blood away from the heart. Veins return blood back toward the heart.