Lymph Circulation

Question 1

What is lymph similar to and what is the exception?

Answer 1

lymph is similar to plasma except there is less protein because most proteins are too large to get pushed out of the capillaries

Question 2

What are there more of in lymph vs plasma?

Answer 2

more white blood cells in lymph than plasma

Question 3

What are the 6 phases for the flow through vessels?

Answer 3

interstitial space to 
lymphatic capillaries to
collecting lymphatic vessels to 
lymphatic trunks to 
lymphatic ducts to 
subclavian veins 
(lymph passes through lymph nodes along the way)

Question 4

How many mechanisms are there for the movement of lymph?

Answer 4

3

Question 5

What are the 3 topics for the mechanisms for the movement of lymph?

Answer 5

skeletal muscle contractions
changes in pressure
smooth muscle contractions

Question 6

Mechanisms for the movement of lymph:

What happens when the skeletal muscle contracts?

Answer 6

it milks the collecting lymphatic vessels

Question 7

Mechanisms for the movement of lymph:

What happens when the pressure changes?

Answer 7

changes in pressure during inhalation and exhalation (respiratory pump)

Question 8

Mechanisms for the movement of lymph:

What happens when the smooth muscle contracts?

Answer 8

smooth muscle in the lymphatic vessels reflexively contracts when the vessel is filled with fluid

Question 9

Mechanisms for the movement of lymph:

Where does the smooth muscle contract and when?

Answer 9

in the lymphatic vessels

when the vessel is filled with fluid