Structure of lymphatic system

Question 1

What do lymphatic vessels do?

Answer 1

Collect and carry away excess tissue fluid from interstitial spaces- eventually returning it to the blood

Question 2

What are lacteals and what do they do?

Answer 2

Special vessels

Transport absorbed fats to the circulation

Question 3

What do lymphocytes do?

Answer 3

Defend body against disease

Question 4

Describe the direction of lymphatic pathways

Answer 4

Lymphatic capillary- Afferent lymphatic vessel-lymph node-efferent lymphatic vessel-lymphatic trunk-collecting dust-subclavian vein

Question 5

What are lymphatic capillaries?

Answer 5

Tiny, closed-ended tubular vessels extended into interstitial spaces, paralleling the blood capillaries

Question 6

Where are lymphatic capillaries found?

Answer 6

All over the body, except in the CNS

Question 7

How do lymphatic capillaries receive tissue fluid?

Answer 7

Through their thin walls and slits between cells

Question 8

What is tissue fluid called when inside lymphatic capillary

Answer 8

Lymph

Question 9

What is the structure of lymphatic vessels

Answer 9

Walls are than those of veins but constructed with the same 3 layers
Have flaplike valves

Question 10

How do larger lymphatic vessels pass through organs

Answer 10

Through lymph nodes- merge to form larger lymphatic trunk