BV 2nd 25

Question 1

Longest vein in the body; superficial

Answer 1

Great Saphenous Vein

Question 2

Site where resistance to blood flow is greatest

Answer 2

Arterioles

Question 3

Site where exchanges of nutrients and gasses are made

Answer 3

Capillaries

Question 4

Site where blood pressure is lowest

Answer 4

Large Veins

Question 5

Site where velocity of blood flow is fastest

Answer 5

Large Arteries

Question 6

Site where the velocity of blood flow is slowest

Answer 6

Capillaries

Question 7

Site where the blood volume is greatest.

Answer 7

Large Arteries

Question 8

Site that is the major determinant of peripheral resistance

Answer 8

Arterioles

Question 9

Arterial pressure in the pulmonary circulation is much higher than in the systemic circulation because of its proximity to the heart.

Answer 9

False

Question 10

Osmotic pressure is created by the presence in a fluid of small diffusivle molecules that easily move through the capillary membrane.

Answer 10

False

Question 11

The cerebral arterial circle (Circle of Willis) is an arterial anastomosis

Answer 11

True

Question 12

The outermost layer of a blood vessel is the tunica externa

Answer 12

True

Question 13

The thick walled arteries close to the heart are called muscular arteries.

Answer 13

False

Question 14

Hypotension is generally considered systolic blood pressure that is below 100mm Hg

Answer 14

True

Question 15

A precapillary sphincter is a cuff of smooth muscle that regulates the flow of blood into the capillaries

Answer 15

True

Question 16

Vasodilation is a widening of the lumen due to smooth muscle contraction.

Answer 16

False

Question 17

The most common type of shock

Answer 17

Hypovolemic Shock

Question 18

Every minute, almost 1.0 mL of fluid leaks out of the capillaries

Answer 18

True

Question 19

An obstruction in the superior vena cava would decrease the flow of blood from the head and neck to the heart. True or false?

Answer 19

True

Question 20

An increase in blood viscosity will cause an increase in peripheral resistance

Answer 20

True

Question 21

The first major branch of the femoral artery is the dorsalis pedis artery.

Answer 21

True

Question 22

The azygos vein originates in the abdomen

Answer 22

True

Question 23

Which of the following chemicals does not help regulate blood pressure?

Answer 23

Nitric Acid

Question 24

Which tunic of an artery contains endothelium?

Answer 24

Tunca Intima

Question 25

Permitting the exchange of nutrients and gasses between the blood and tissue cells is the primary function of which vessels?

Answer 25

Capillaries