A and P 2 Chapter 20

1. True

1. True or false: Arteriosclerosis (the stiffening of arteries with age) increases the risk of aneurysms.

A. arteriole

A small resistance artery that empties into a capillary is called a(n)______. Multiple choice question. A. arteriole B. distributing artery C. venule

resistance

Also known as small arteries, arteries that are usually too small to be given individual names are known as ____ arteries.

Conducting arteries Distributing arteries Resistance arteries

Arrange the three classes of arteries in order from largest to smallest. Resistance arteries Distributing arteries Conducting arteries

A. Respiration rate B. Heart rate

Arterial sense organs monitor blood chemistry and blood pressure in order to help regulate which of the following? Multiple select question. A. Respiration rate B. Heart rate C. Blood sugar level D. Body temperature

C. distributing

Arteries that are muscular or medium sized arteries that deliver blood to specific organs are called ______ arteries. Multiple choice question. A. conducting B. resistance C. distributing

A. Carry blood away from the heart

By definition, arteries are blood vessels that do which of the following? Multiple choice question. A. Carry blood away from the heart B. Carry oxygen-saturated blood C. Carry blood away from the lungs D. Carry blood toward the heart

2. True

True or false: The diameter of some capillaries is even smaller than the diameter of a red blood cell.

B. Monitor blood pressure C. Monitor blood chemistry

What is the function of the arterial sense organs? Multiple select question. A. Monitor blood temperature B. Monitor blood pressure C. Monitor blood chemistry D. Monitor red blood cell concentration

A. Capillaries

Where does most of the exchange of nutrients, wastes, and hormones between the blood and body fluids occur? Multiple choice question. A. Capillaries B. Arteries C. Veins D. Arterioles

A. Tunica interna C. Tunica externa D. Tunica media

Which are layers of the blood vessel wall? Multiple select question. A. Tunica interna B. Tunica mucosa C. Tunica externa D. Tunica media E. Tunica albuginea

A. Conducting

Which class of artery includes the aorta, pulmonary trunk, common carotid, subclavian, and common iliac arteries? Multiple choice question. A. Conducting B. Distributing C. Resistance

C. Arteriole

Which term refers to a small vessel that empties into a capillary? Multiple choice question. A. Vein B. Elastic artery C. Arteriole D. Venule

B. Microvasculature

Which term refers to the arterioles, capillaries, and venules? Multiple choice question. A. Capillary beds B. Microvasculature C. Anastomoses D. Sinusoids

B. Conducting

Which type of artery is the largest? Multiple choice question. A. Metarterioles B. Conducting C. Resistance D. Distributing

C. Arteries

Which type of blood vessel carries blood away from the heart? Multiple choice question. A. Capillaries B. Veins C. Arteries

D. Most exchange between the blood and the tissue fluid occurs across capillary walls.

Why are capillaries sometimes called the exchange vessels of the cardiovascular system? Multiple choice question. A. Capillaries can become either veins or arteries as needed. B. Blood changes direction in the capillaries and begins to flow back towards the heart. C. Capillaries exchange red blood cells for white blood cells in the liver. D. Most exchange between the blood and the tissue fluid occurs across capillary walls.

Tight

In continuous capillaries, the endothelium forms a continuous tube held together by ____ junctions.

B. distributing

The brachial, femoral, renal, and splenic arteries are examples of ______ arteries. Multiple choice question. A. conducting B. distributing C. resistance

B. Endothelium C. Basal lamina

The capillary wall consists of which of the following layers? Multiple select question. A. Tunica media B. Endothelium C. Basal lamina D. Vasa vasorum

B. tunica interna

The innermost layer of a blood vessel wall is the ______. Multiple choice question. A. tunica externa B. tunica interna C. tunica media

D. arterioles

The smallest of the resistance arteries are called ______. Multiple choice question. A. venules B. capillaries C. metarterioles D. arterioles

A. Venules D. Arterioles E. Capillaries

The term microvasculature (or microcirculation) refers to which of the following? Multiple select question. A. Venules B. Veins C. Arteries D. Arterioles E. Capillaries

B. Their expansion reduces systolic stress on smaller arteries. C. Their recoil helps maintain blood pressure between heartbeats. D. Their expansion and recoil helps keep the blood flowing during diastole.

Why is it important for conducting arteries to maintain elasticity? Multiple select question. A. Their recoil ensures that blood pressure is higher during diastole than during systole. B. Their expansion reduces systolic stress on smaller arteries. C. Their recoil helps maintain blood pressure between heartbeats. D. Their expansion and recoil helps keep the blood flowing during diastole.