Question 1

The vast majority of the body's lymph is drained by the _____ duct.

Accepted Answer

A) right lymphatic 
B) left lymphatic 
C) thoracic 
D) abdominal 
A) right lymphatic 
B) left lymphatic 
C) thoracic 
D) abdominal

Question 2

Which of the following is a function of the thymus?

Accepted Answer

A) It serves as the final site of lymphocyte development before birth. 
B) Soon after birth, it begins to secrete a group of hormones that enable lymphocytes to develop into mature T cells. 
C) Soon after birth, it begins to secrete a hormone that actively stimulates the posterior pituitary to release oxytocin. 
D) Both A and B are functions of the thymus. 
A) It serves as the final site of lymphocyte development before birth. 
B) Soon after birth, it begins to secrete a group of hormones that enable lymphocytes to develop into mature T cells. 
C) Soon after birth, it begins to secrete a hormone that actively stimulates the posterior pituitary to release oxytocin. 
D) Both A and B are functions of the thymus.

Question 3

Veins have more valves than do lymphatics.

Accepted Answer

A) True 
 B)False

Question 4

Match each body location with the corresponding group of lymph nodes.
-Submaxillary group

Accepted Answer

A) In the neck along the sternocleidomastoid muscle 
B) In the floor of the mouth 
C) In the groin 
D) Just above the bend of the elbow 
E) Clustered deep within the underarm and upper chest regions 
A) In the neck along the sternocleidomastoid muscle 
B) In the floor of the mouth 
C) In the groin 
D) Just above the bend of the elbow 
E) Clustered deep within the underarm and upper chest regions

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

The lymphatic system contributes to the circulatory system.

Accepted Answer

A) True 
 B)False

Question 7

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. 
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.

Question 8

Lymph contains platelets, which allow clots to form in lymphatic vessels.

Accepted Answer

A) True 
 B)False

Question 9

The larger lymph vessels are made up of three layers of tissue, just as the veins and arteries are in the circulatory system.

Accepted Answer

A) True 
 B)False

Question 10

The thymus undergoes involution during:

Accepted Answer

A) early childhood. 
B) puberty. 
C) old age. 
D) fetal development. 
A) early childhood. 
B) puberty. 
C) old age. 
D) fetal development.

Question 11

Lymph containing chyle is equally likely to be found in either the thoracic duct or the right lymphatic duct.

Accepted Answer

A) True 
 B)False

Question 12

Peyer patches are isolated nodules of lymphatic tissue in the intestinal wall.

Accepted Answer

A) True 
 B)False

Question 13

Activities that result in central movement, or flow, of lymph are called lymphokinetic actions.

Accepted Answer

A) True 
 B)False

Question 14

The spleen is located in the _____ region.

Accepted Answer

A) right hypochondriac 
B) left hypochondriac 
C) epigastric 
D) left lumbar 
A) right hypochondriac 
B) left hypochondriac 
C) epigastric 
D) left lumbar

Question 15

Lymph enters a node via:

Accepted Answer

A) afferent lymph vessels. 
B) efferent lymph vessels. 
C) sinuses. 
D) trabeculae. 
A) afferent lymph vessels. 
B) efferent lymph vessels. 
C) sinuses. 
D) trabeculae.

Question 16

The breast-the mammary gland and surrounding tissue-is drained by the:

Accepted Answer

A) lymphatics that originate in and drain the skin over the breast with the exception of the areola and nipple. 
B) lymphatics that originate in and drain the substance of the breast itself, as well as the skin of the areola and nipple. 
C) inguinal lymph nodes. 
D) Both A and B are correct. 
A) lymphatics that originate in and drain the skin over the breast with the exception of the areola and nipple. 
B) lymphatics that originate in and drain the substance of the breast itself, as well as the skin of the areola and nipple. 
C) inguinal lymph nodes. 
D) Both A and B are correct.

Question 17

Both lymph and interstitial fluid contain a higher percentage of proteins than does plasma.

Accepted Answer

A) True 
 B)False

Question 18

Compare and contrast mechanisms for the movement of lymph through lymphatic vessels with the movement of blood through veins.

Accepted Answer

The movement of lymph through lymphatic

Question 19

The valves in the lymphatics are more numerous in the larger vessels.

Accepted Answer

A) True 
 B)False

Question 20

How do the reticuloendothelial cells compare to white blood cells as a defense against infection?

Accepted Answer

A) Only white blood cells play a role in the body's defense against infection. 
B) There is no comparison between these two types of cells; reticuloendothelial cells are in the lymphatic system and the white blood cells are part of the circulatory system. 
C) Reticuloendothelial cells (macrophages) lining the spleen remove microorganisms from the blood and destroy them by phagocytosis in a fashion similar to that of white blood cells. 
D) Reticuloendothelial cells (macrophages) lining the spleen prevent microorganisms from entering the blood in a similar fashion as do white blood cells, thus preventing infection. 
A) Only white blood cells play a role in the body's defense against infection. 
B) There is no comparison between these two types of cells; reticuloendothelial cells are in the lymphatic system and the white blood cells are part of the circulatory system. 
C) Reticuloendothelial cells (macrophages) lining the spleen remove microorganisms from the blood and destroy them by phagocytosis in a fashion similar to that of white blood cells. 
D) Reticuloendothelial cells (macrophages) lining the spleen prevent microorganisms from entering the blood in a similar fashion as do white blood cells, thus preventing infection.

Exam 31: Lymphatic System

The vast majority of the body's lymph is drained by the _____ duct.

Which of the following is a function of the thymus?

Veins have more valves than do lymphatics.

Match each body location with the corresponding group of lymph nodes. -Submaxillary group

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

The lymphatic system contributes to the circulatory system.

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

Lymph contains platelets, which allow clots to form in lymphatic vessels.

The larger lymph vessels are made up of three layers of tissue, just as the veins and arteries are in the circulatory system.

The thymus undergoes involution during:

Lymph containing chyle is equally likely to be found in either the thoracic duct or the right lymphatic duct.

Peyer patches are isolated nodules of lymphatic tissue in the intestinal wall.

Activities that result in central movement, or flow, of lymph are called lymphokinetic actions.

The spleen is located in the _____ region.

Lymph enters a node via:

The breast-the mammary gland and surrounding tissue-is drained by the:

Both lymph and interstitial fluid contain a higher percentage of proteins than does plasma.

Compare and contrast mechanisms for the movement of lymph through lymphatic vessels with the movement of blood through veins.

The valves in the lymphatics are more numerous in the larger vessels.

How do the reticuloendothelial cells compare to white blood cells as a defense against infection?

Organization of the Body

Homeostasis

Chemistry of Life

Biomolecules

Cell Structure

Cell Function

Cell Growth and Development

Introduction to Tissues

Tissue Types

Skin

Skeletal Tissues

Axial Skeleton

Appendicular Skeleton

Articulations

Axial Muscles

Appendicular Muscles

Muscle Contraction

Nervous System Cells

Nerve Signaling

Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

General Senses

Special Senses

Endocrine Regulation

Endocrine Glands

Blood

Heart

Blood Vessels

Circulation of the Blood

Innate Immunity

Adaptive Immunity

Stress

Respiratory Tract

Ventilation

Gas Exchange Transport

Upper Digestive Tract

Lower Digestive Tract

Digestion and Absorption

Nutrition and Metabolism

Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

Female Reproductive System

Growth, Development, and Aging

Genetics and Heredity

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