Blood Vessels

Which type of vessels have the smallest diameter?

• arteries

• venules

• capillaries

• arterioles

The innermost layer of the tunica intima is the

• internal elastic lamina

• vaso vasora

• external elastic lamina

• endothelium

Which of the following is the smallest areterioles?

• elastic arteries

• metarterioles

• muscular arteries

• arterioles

What percent of the body's total blood volume would be found in the veins at any given time?

• 25

• 50

• 70

• 90

Tags

NGSS.HS-LS1-3

Which of the following factors does NOT affect blood flow?

• magnitude of the pressure gradient

• resistance

• velocity

• all of these will affect blood flow

Which of these does NOT contribute to peripheral resistance?

• blood vessel radius

• blood viscosity

• blood vessel length

• temperature

Which of the following would decrease blood pressure?

• increased viscosity

• increased vessel radius

• increased blood volume

• increased cardiac output

Tags

NGSS.HS-LS1-3

Which of the following would have the lowest blood pressure?

• systemic arteries

• pulmonary veins

• pulmonary arteries

• systemic veins

How is pulse pressure determined?

• diastolic - systolic

• systolic - diastolic

• average pressure in systemic arteries during entire cardiac cycle

• 1/3 diastolic pressure

Peripheral chemoreceptors respond primarily to

• decreased carbon dioxide in the blood

• decreased oxygen in the blood

• pH of interstitial fluid in the brain

• pH of blood in the brain