Question 1

The size of the spleen is relatively constant in different individuals,regardless of sex or age.

Accepted Answer

A) True 
 B)False

Question 2

Why is having an understanding of the lymphatic drainage of the breast important in formulating the diagnosis and treatment of breast cancer?

Accepted Answer

The answer of Why is having an understanding of the...

Question 3

Lymph flows through the thoracic duct and reenters the general circulation at the rate of about _____ liter(s)per day.

Accepted Answer

A)  1 
B)  0.5 
C)  3 
D)  5

Question 4

Match each structure or organ of the lymphatic system with its corresponding function or description.
-duct that carries only about one fourth of the lymph back to the blood

Accepted Answer

A) Tonsils 
B) Spleen 
C) Lymph node 
D) Cisterna chyli 
E) Lymph
F)Thoracic duct
G)Thymus
H)Right lymphatic duct
I)Peyer patches
J)Hassall corpuscles
K)Interstitial fluid

Question 5

The lymphatic system,like the circulatory system,is a closed circuit.

Accepted Answer

A) True 
 B)False

Question 6

The lymph pressure gradient is established by:

Accepted Answer

A)  breathing movements. 
B)  skeletal muscle contractions. 
C)  parasympathetic stimulation. 
D)  both A and B.

Question 7

Axillary node enlargement may be a sign that breast cancer cells have spread to the nodes.

Accepted Answer

A) True 
 B)False

Question 8

Germinal centers are areas of rapidly dividing lymphocytes within a cortical node.

Accepted Answer

A) True 
 B)False

Question 9

Baby Ruth was born without a thymus gland.Immediate plans were made to perform a transplant.In the meantime,Baby Ruth was placed in strict isolation.Even her parents were not allowed to touch her.Why was she placed in the isolation unit?

Accepted Answer

The answer of Baby Ruth was born without a thymus...

Question 10

The cisterna chyli:

Accepted Answer

A)  originates in the right lymphatic duct. 
B)  originates in the thoracic duct. 
C)  is the storage area for hormones made by the thymus gland. 
D)  filters the chyle coming from the small intestine.

Question 11

Which of the following is not true of the thymus gland?

Accepted Answer

A)  Relative size is largest in early childhood. 
B)  It is the primary central organ of the lymphatic system. 
C)  It functions in the immune mechanism. 
D)  It functions mostly in adult life.

Question 12

Which of the following is a function of lymph nodes?

Accepted Answer

A)  Hematopoiesis 
B)  Filtration 
C)  Phagocytosis 
D)  All of the above

Question 13

Protein substances that have left the bloodstream return by way of lymph fluid.

Accepted Answer

A) True 
 B)False

Question 14

Damage to main lymphatic ducts may cause death from the loss of serum proteins.

Accepted Answer

A) True 
 B)False

Question 15

Anastomoses are not characteristic of lymphatic vessels,and therefore a malignant tumor in one breast cannot spread to the other breast.

Accepted Answer

A) True 
 B)False

Question 16

Almost all of the interstitial fluid filtered out by the capillaries enters the lymphatic system.

Accepted Answer

A) True 
 B)False

Question 17

The tunica media of lymph vessels is similar to that of veins except the lymph vessels have no smooth muscle.

Accepted Answer

A) True 
 B)False

Question 18

Lymphatic vessels run parallel to veins and form frequent anastomoses with them.

Accepted Answer

A) True 
 B)False

Question 19

In advanced old age,the thymus may be largely replaced by:

Accepted Answer

A)  fat. 
B)  protein. 
C)  scar tissue. 
D)  cartilage.

Question 20

How are lymphatic capillaries related to the function of the lymphatic system?

Accepted Answer

A)  The wall of the lymphatic capillary consists of a multiple layer of flattened endothelial cells that prevents drainage of blood into the lymphatic system. 
B)  The lymphatic capillary network allows lymph to flow from the larger-walled capillaries into the vessels with a thin wall diameter. 
C)  The high degree of permeability of the lymphatic capillary wall permits very large molecules and even particulate matter, which cannot be absorbed into the blood capillary, to be removed from the interstitial space. 
D)  The thoracic duct is approximately the same size as the large veins and forms an open circuit to drain fluid into the renal system.

Exam 23: Lymphatic System

The size of the spleen is relatively constant in different individuals,regardless of sex or age.

Why is having an understanding of the lymphatic drainage of the breast important in formulating the diagnosis and treatment of breast cancer?

Lymph flows through the thoracic duct and reenters the general circulation at the rate of about _____ liter(s) per day.

Match each structure or organ of the lymphatic system with its corresponding function or description. -duct that carries only about one fourth of the lymph back to the blood

The lymphatic system,like the circulatory system,is a closed circuit.

The lymph pressure gradient is established by:

Axillary node enlargement may be a sign that breast cancer cells have spread to the nodes.

Germinal centers are areas of rapidly dividing lymphocytes within a cortical node.

Baby Ruth was born without a thymus gland.Immediate plans were made to perform a transplant.In the meantime,Baby Ruth was placed in strict isolation.Even her parents were not allowed to touch her.Why was she placed in the isolation unit?

The cisterna chyli:

Which of the following is not true of the thymus gland?

Which of the following is a function of lymph nodes?

Protein substances that have left the bloodstream return by way of lymph fluid.

Damage to main lymphatic ducts may cause death from the loss of serum proteins.

Anastomoses are not characteristic of lymphatic vessels,and therefore a malignant tumor in one breast cannot spread to the other breast.

Almost all of the interstitial fluid filtered out by the capillaries enters the lymphatic system.

The tunica media of lymph vessels is similar to that of veins except the lymph vessels have no smooth muscle.

Lymphatic vessels run parallel to veins and form frequent anastomoses with them.

In advanced old age,the thymus may be largely replaced by:

How are lymphatic capillaries related to the function of the lymphatic system?