Blood Vessel Structure/Function

Question 1

Lymphatic System role in closed circuit

Answer 1

works with capilary bed and picks up intersitiatl fluid and returns it to the venous system

Question 2

what are elastic arteries?

Answer 2

• Conducting artiers that convery blood from the heart ot medium sized arteries
• Aorta and major branches-walls contain large amounts of elastin (expand-recoil)
• Acts as prssure reservoirs that dampen the pulsatile pressure of the heart

Question 3

Muscular Arteries

Answer 3

• Deliver blood to speficic body organs
• Distrubting arteries
• thcikest tunia-media relative to lumen size

Question 4

Arterioles

Answer 4

• Resistance vessels
• Constict and Dialate due to hormonal-neural-localchemical stimulation

Question 5

Sphincters open?

Answer 5

Blood flow thru true capillaries

Question 6

Sphincters Closed

Answer 6

blood floes thru vascular shunt

Question 7

Venules?

Answer 7

• small-extremely porous
• thin tuncia media and externa
• Porous plaus a role in acute inflmmation

Question 8

Veins?

Answer 8

• thinner walls
• capacitce vessles

Question 9

Is blood pressure in veins lower than artiers?

Answer 9

Yes

Question 11

Mechanisms get blood black to the heart

Answer 11

Valves
Muscular Pump
Respiratory Pump
Sympatethic Stim