Lymphatic System Revision

Question 1

Name the two main ducts found in the lymphatic system

Answer 1

Right lymphatic duct and the thoracic duct

Question 2

List the functions of the lymphatic system

Answer 2

• Return excess fluid from peripheral tissue to the venous system
• Produce antibodies
• Remove unwanted materials
• Produce lymphocytes
• Absorb digested fats in villi of intestines

Question 3

What is the main function of a lymph node ?

Answer 3

To cleanse or filter the lymph

Question 4

Name the types of lymphatic organs and tissue

Answer 4

Tonsil, Adenoids, Peyers Patches, Thymus, Spleen

Question 5

How much of the body’s fluid is returned to the lymphatic system each day?

Answer 5

10% or 3-4 litres

Question 6

Name the type of products that pass through the lymphatic capillary walls

Answer 6

Proteins, Viruses, and Bacteria

Question 7

How does the lymphatic system prevent the back flow of lymph

Answer 7

Cup shaped valves

Question 8

What is the colour of lymph?

Answer 8

Straw coloured

Question 9

How would you describe the lymphatic system?

Answer 9

The lymphatic system can be described as a second circulatory system that collects excess fluid and waste that the blood is unable to take from the cells , filtering it before returning back to the blood

Question 10

Four areas of the body drained by the right lymphatic duct include:

Answer 10

Right arm, head, neck and chest

Question 11

Where is lymph found?

Answer 11

Fluid between the cells

Question 12

Which one of the following best describes a lymph node?

Answer 12

A small bean-shaped gland

Question 13

What one of the following functions relates to lymph?

a. Destroy bacteria
b. Strengthen capillary walls
c. Help build new cells
d. Change into leucocytes

Answer 13

Destroy bacteria

Question 14

Which one of the following contains lymphatic tissue?

a. Pineal gland
b. Thyroid gland
c. Parathyroid gland
d. Thymus gland

Answer 14

Thymus gland

Question 15

The two main lymphatic ducts are the ‘right lymphatic duct’ and the:

Answer 15

Thoracic duct

Question 16

Which of the following is not a function of the lymphatic system?

a. To produce lymphocytes
b. To pass digested fats from the intestine
c. To filter foreign matter through the nodes
d. To increase oxygen to vital organs

Answer 16

To increase oxygen to vital organs

Question 17

Which one of the following blood vessels do the two lymph ducts drain into?

a. Submandibular veins
b. Subclavian veins
c. Jugular vein
d. Axillary veins

Answer 17

Subclavian veins

Question 18

Describe the process of capillary exchange

Answer 18

Plasma in the blood seeps through the capillary wall
Plasma now becomes tissue fluid.
Tissue fluid provides the cells with nutrients and oxygen
Tissue fluid passes into the lymphatic capillary.
Tissue fluid now becomes lymph.

Question 19

How does the lymphatic system distributes fluid in the body?

Answer 19

Lymphatic vessels drain away approximately 3 litres of excess tissue fluid daily.

Question 20

Lymph fluid is similar in composition to blood [_____].

Answer 20

Plasma

Question 21

What is the function of lymphocytes, leucocytes in lymph fluid?

Answer 21

To ingest bacteria and cell debris

Question 22

Where would you not find lymph capillaries?

Answer 22

The central nervous system (CNS)

Question 23

Name the vessel that transports lymph to the node:

Answer 23

Afferent vessel ( A - Arrival)

Question 24

Name the vessel that transports filtered lymph back to the system:

Answer 24

Efferent vessel (E - Exit)

Question 25

Which lymphatic duct empties into the right subclavian vein to rejoin the circulatory system?

Answer 25

Right lymphatic duct

Question 26

Which lymphatic duct empties into the left subclavian vein to rejoin the circulatory system?

Answer 26

Thoracic duct

Question 27

How does lymoh move around the body?

Answer 27

• One-way valves
• Muscular contraction
• Arterial pulsation
• Breathing
• Hydrostatic pressure on the tissues
• Intrinsic action of sooth muscle in larger lymphatic vessels
• Pressure gradients in the tissues