Pt 1 of Test 2

Question 1

True or False: Lymph, as a fluid, is that which is left over/remaining in intercellular space as a result of leaky capillaries

Answer 1

True

Question 2

What are the 3 main functions of the lymphatic system?

Answer 2

1. fluid recovery
2. immunity
3. lipid absorption

Question 3

Where do immune cells stand guard against foreign matter (and activate a protective immune response)

Answer 3

lymph nodes

Question 4

In lipid absorption, what are milky white things in small intestine that absorb dietary lipids that are not absorbed by the blood capillaries

Answer 4

lacteals

Question 5

lymph flows in how many directions and what are they?

Answer 5

1 direction: towards the heart

Question 6

in lymphatic capillaries, endothelial cells overlap forming what? and explain what this does

Answer 6

minivalves (flap-like). increases in interstitial fluid volume causes these minivalves to open where fluid enters. decreases in interstitial fluid volume causes minivalves to close and prevents backflow. if too much fluid is flowing entering and flowing through the area, it can cause swelling and enlarge the opening of the flaps.

Question 7

what are involved in taking up lipids after a meal (that are dissolved) that look milky white (pick up fatty portion that has been eaten)

Answer 7

lacteals

Question 8

What is the flow of the lymphatic system

Answer 8

1. lymphatic capillaries
2. lymphatic collecting vessels
3. lymph nodes
4. lymphatic trunks
5. lymphatic ducts ( 2 major ones)
   a. Right lymphatic duct
   b. thoracic duct

Question 9

what are the lymphatic collecting vessels heavily associated with

Answer 9

internal valves preventing backflow

Question 10

what is the main function of lymph nodes in terms of the flow

Answer 10

fluid detox; test fluids for issues like bacteria, viruses, cancer, etc

Question 11

where do the collecting vessels unite in the lymphatic system flow

Answer 11

lymphatic trunks

Question 12

what are the 2 lymphatic ducts and what areas do they represent

Answer 12

1. right lymphatic duct- right upper arm and right side of head and thorax
2. thoracic duct- rest of body

Question 13

where do the lymphatic ducts at the end flow of the lymphatic system end up

Answer 13

they connect with the subclavian/jugular junction aortic arteries and down the brachiocephalic veins and dump right above the superior vena cava (NOT IN IT) ABOVE IT!