Lab Quiz 2

Place a single word into each sentence to make it correct, then arrange the sentences into a logical paragraph order. increases, diverted, fill, removed, posts, sphincters, reduces -When this occurs, blood is ...... to tissue or organs elsewhere.-Constriction of these sphincters ..... the blood flow through their respective capillaries. -When the sphincters are open, blood will ...... the capillary bed. -Capillary beds have precapillary ..... at the junction of capillaries and the met arteriole.

-Capillary beds have precapillary sphincters at the junction of capillaries and the met arteriole. -Constriction of these sphincters reduces the blood flow through their respective capillaries. -When this occurs, blood is diverted to tissue or organs elsewhere. -When the sphincters are open, blood will fill the capillary bed.

In arteries, the thickest layer of the wall is the? a. tunica externa b. tunica media c. tunica intima d. tunica adventitia e. none of the answers are correct

b. tunica media

Match the vessel the tissue it drains. 1. Superior mesenteric vein 2. Gastro-omental vein 3. Cystic vein 4. Phrenic vein 5. internal iliac vein 6. Femoral vein 7. Digital vein.

1. Superior mesenteric vein SMALL INTESTINE AND MOST OF THE COLON 2. Gastro-omental vein STOMACH 3. Cystic vein GALLBLADDER 4. Phrenic vein DIAPHRAGM 5. Internal iliac vein PELVIS AND ITS VISCERA 6. Femoral vein THIGH 7. Digital vein TOES

Place the blood vessel tunics in order from most external to most internal. Tunica Media Tunica Intima Tunica Externa

2 Tunica Media 3 Tunica Intima 1 Tunica Externa

Which vessel drains capillaries? a. Postcapillary Venules b. Metarterioles c. Sinusoids d. Capillary Arteries

a. Postcapillary Venules

Which carries blood from the liver to the inferior vena cava? a. hepatic veins b. inferior mesenteric vein c. hepatic portal vein d. superior mesenteric vein e. splenic vein

a. hepatic veins

Which of the following do you think would be the most common artery palpated to determine heart rate? a.Popliteal artery b. Temporal artery c. Radial artery d. Posterior Tibial artery

c. Radial artery

Why did the pulse rate decrease 5 minutes after exercise? a. five minutes after exercising our hearts are pumping more effectively. b. stroke volume increased so heart rate could decrease. c. the tissue damage for oxygen had decreased. d. the tissue damage for oxygen had increase.

c. the tissue damage for oxygen had decreased.

What is the most common type of capillary? a. Sinusoids b. Fenestrated c. Discontinuous d. Continuous e. Venules

d. Continuous

Capillaries have only a? a. tunica externa b. capillaries have all of these tunics c. tunica media d. tunica intima

d. tunica intima