Lymphatic system

Question 1

What is the lymphatic system?

Answer 1

• Consists of organs, ducts and nodes

- Transports watery clear fluid called lymph

Question 2

Describe lymphs

Answer 2

• Collect + returns interstitial fluid, including plasma protein to the blood- maintaining fluid balance.
• Defend the body against disease by transporting lymphocytes.
• Absorb lipids from the intestine and transport them to the blood.

Question 3

describe lymph capillaries

Answer 3

• begin as blind ended tubes

- Valves in capillary walls are pushed open by interstitial fluid which moves into the vessel

Question 4

Describe lymph vessles

Answer 4

• Capillaries join to larger vessels called lymphatic vessels.
• Lymph is moved along the vessel by surrounding muscle contractions.
• Also have valves (like veins) to prevent backflow.

Question 5

Descrube Lymph nodes

Answer 5

Located along lymph vessels.
Filters lymph fluid.
Contains lymphocytes to help fight infections.
Found in clumps in the neck, under the arms and in the groin.