DLA 40

Question 1

What are the components of the cardiovascular system?

Answer 1

The heart and blood vessels

Question 2

What are the types of blood vessels?

Answer 2

1. arteries - transport blood away from the heart
   they have thick walls that can withstand the high pressure of blood from the heart
2. veins - transport blood to the heart
   they have thin-walls with large irregular lumens
3. capillaries - connect arteries and veins
   the level where nutrients are exchanged

Question 3

what makes up the walls of blood vessels?

Answer 3

1. tunica intima - inner epithelial lining
2. tunica media - middle smooth muscle layer
   (arteries have multiple layers of smooth muscle)
3. tunica externa - outer connective tissue layer

Question 4

What makes up the walls of veins?

Answer 4

thin walls

tunica intima - inner endothelial linings, folded to form valves.

tunica media - limited layers of smooth muscle

tunica externa - thick CT layer

Question 5

Most common circulatory route for blood?

Answer 5

heart

arteries

arterioles

capillary bed

venules

veins

heart

Question 6

arteriovenous shunt?

Answer 6

directly from artery to vein

Question 7

Anastomosis?

Answer 7

the union of two or more vessels

venous - alternative drainage of organs

arterial - alternative routes for blood to reach a tissue or organ

Question 8

What makes up the lymphatic system?

Answer 8

lymphatic vessels
lymph nodes
lymphatic organs

Question 9

How does lymph move?

Answer 9

interstitial fluid

lymphatic capillaries

lymph node

blood vessels