Lymphatic System

Question 0

Which of the following is incorrect? Lymph moves through the lymphatic system by:

• blood pressure produced by the cardiac system
• contraction of skeletal muscle
• breathing movements of the thorax
• contraction of smooth muscle

Answer 0

Blood pressure produced by the cardiac cycle

Question 1

Which of the following is incorrect? Lymph nodes:

• are concentrated in specific areas of the body
• have valves to prevent back flow
• contain B and T lymphocytes
• are glands

Answer 1

Are glands

Question 2

Lymph returns to the circulatory system …

Answer 2

At the left and right subclavian vein

Question 3

Which of the following is incorrect? Oedema may be due to:

• a fall in blood osmotic pressure
• swollen lymph nodes
• cancer metastases in the lymphatic system
• a rise in capillary hydrostatic pressure

Answer 3

Swollen lymph nodes

Question 4

Which of the following is incorrect? Swollen lymph nodes:

• are responding to local infection
• indicate inflammation
• produce lymphocytes
• secret hormones

Answer 4

Secret hormones

Question 5

Which of the following is incorrect? The functions of the lymphatic system include:

• maintenance of blood volume
• transport of lipids
• production of lymphocytes
• production of tissue fluid

Answer 5

Production of tissue fluid

Question 6

Which of the following is incorrect? The human thymus:

• promotes development of lymphocytes
• produces thyroxine
• is relatively large in the neonate
• declines in size and activity by he 50

Answer 6

Produces thyroxine

Question 7

Which if the following is incorrect? The spleen:

• contains large numbers of phagocytic cells
• is a robust organ
• stores iron from recycled erythrocytes
• is the largest lymph node in the body

Answer 7

Is a robust organ

Question 8

Which of the following is incorrect:

• B and T lymphocytes take up residence in the lymph nodes
• B lymphocytes are produced in the bone marrow
• B and T lymphocytes both start life as a stem cell
• T lymphocytes mature in the thyroid gland

Answer 8

T lymphocytes mature in the thyroid gland

Question 9

Which of the following aren’t lymphoid tissue or organ:

Tonsils, spleen, peyer’s patches, pancreas, thymus, testes

Answer 9

Pancreas and testes