Midterm 1

Question 1

Which of these statements about lymph flow in a node is false?

Answer 1

Correct The afferent lymphatics enters at the hilum.

Question 2

The thoracic duct drains lymph from all of the following regions, except the

Answer 2

right breast

Question 3

Examples of physical barriers against pathogens include

Answer 3

All of the answers are correct.

Question 4

Figure 22-1 The Structure of a Lymph Node
Use Figure 22-1 to answer the following questions:
Identify the dominant cell type in the area labeled “6.”

Answer 4

B cells

Question 5

Stem cells that can form all types of lymphocytes are concentrated in the

Answer 5

red marrow.

Question 6

Figure 22-1 The Structure of a Lymph Node
Use Figure 22-1 to answer the following questions:
Identify the structure labeled “6.”

Answer 6

outer cortex

Question 7

Lymphatic capillaries are known for

Answer 7

All of the answers are correct.

Question 8

Suppressor T cells act to

Answer 8

inhibit T and B cell activities.

Question 9

The cells directly responsible for cellular immunity are the ________ cells.

Answer 9

cytotoxic T

Question 10

Most of the lymph returns to the venous circulation by way of the

Answer 10

thoracic duct.

Question 11

Areas of the spleen that contain large aggregations of lymphocytes are known as

Answer 11

white pulp.

Question 12

The white pulp of the spleen is populated by

Answer 12

lymphocytes.

Question 13

Class II MHC molecules are found only on which of the following?

Answer 13

lymphocytes and antigen-presenting cells

Question 14

Which of these is not a characteristic of AIDS?

Answer 14

is declining worldwide

Question 15

Class II MHC proteins are present in the plasma membrane only

Answer 15

in antigen-presenting cells and lymphocytes.

Question 16

Lymph nodes do all of the following, except that they

Answer 16

Correct remove excess nutrients from the lymph.

Question 17

In passive immunization, the

Answer 17

body receives antibodies produced by other humans or by an animal.

Question 18

An inflammatory response is triggered when

Answer 18

mast cells release histamine and heparin.

Question 19

Lymphocytes

Answer 19

respond to antigens

Question 20

The first line of cellular defense against pathogens are the

Answer 20

phagocytes.

Question 21

The following are steps in the cell-mediated immune response.

Answer 21

Correct 2, 4, 1, 5, 3, 6.

Question 22

Compared to blood capillaries, lymph capillaries exhibit all of the following, except that they

Answer 22

are smaller in diameter.

Question 23

Infection with the HIV virus occurs through

Answer 23

intimate contact with an infected person’s body fluids.

Question 24

Lymphocytes are produced and stored in all of the following, except

Answer 24

the brain.

Question 25

Inflammation produces localized

Answer 25

All of the answers are correct.

Question 26

________ are large lymphatic nodules that are located in the walls of the pharynx.

Answer 26

Tonsils

Question 27

Lymphocytes may be found in which of the following tissues or organs?

Answer 27

All of the answers are correct.

Question 28

The human immunodeficiency virus (HIV) that causes the disease known as AIDS selectively infects ________ cells.

Answer 28

helper T

Question 29

Figure 22-1 The Structure of a Lymph Node Use Figure 22-1 to answer the following questions: Identify the structure labeled "1."

Answer 29

afferent lymphatic vessel

Question 30

T cells and B cells can be activated only by

Answer 30

exposure to a specific antigen at a specific site in a plasma membrane.

Question 31

The cells responsible for humoral immunity are the ________ cells.

Answer 31

B

Question 32

T is to ________ as B is to ________.

Answer 32

thymus-dependent; bone marrow-derived

Question 33

Hormones of the immune system include all of the following, except

Answer 33

natriuretic factor.

Question 34

All of the following are true of the thymus gland, except that it

Answer 34

activates B cells.

Question 35

Leslie has a bad sore throat and the lymph nodes in her neck are swollen. This would indicate that

Answer 35

the affected lymph nodes contain an increased number of lymphocytes.

Question 36

Changes in the immune system that accompany aging include

Answer 36

All of the answers are correct

Question 37

Each of the following is a physical barrier to infection, except

Answer 37

Correct complement.

Question 38

Figure 22-1 The Structure of a Lymph Node Use Figure 22-1 to answer the following questions: Identify the structure labeled "3."

Answer 38

Correct capsule

Question 39

Fever is the maintenance of body temperature greater than

Answer 39

99°F.

Question 40

Stress can affect the immune response in all of the following ways, except by

Answer 40

inhibiting glucocorticoid release.

Question 41

Dividing lymphocytes can be found in the ________ of the lymphatic nodule.

Answer 41

germinal center

Question 42

The lymphatic system is composed of all of the following, except

Answer 42

the venae cavae.

Question 43

Lymphocytes provide an adaptive or specific defense known as the

Answer 43

immune response`

Question 44

In general, lymphocytes

Answer 44

spend most of their time in lymphatic tissue

Question 45

Lymphocytes that destroy foreign cells or virus-infected cells are ________ cells.

Answer 45

cytotoxic T

Question 46

________ are clusters of lymphatic nodules deep to the epithelial lining of the small intestine.

Answer 46

Peyer patches

Question 47

The lymphatic system does all of the following, except that it

Answer 47

transports gases to and away from lymph nodes.

Question 48

The primary function of the lymphatic system is

Answer 48

Correct defending the body against both environmental hazards and internal threats.

Question 49

Figure 22-1 The Structure of a Lymph Node Use Figure 22-1 to answer the following questions: Identify the dominant cell type in the area labeled "4."

Answer 49

T cells

Question 50

Lymphatic vessels are located in almost all portions of the body, except the

Answer 50

CNS.

Question 51

A common site to place a tracheostomy tube is through the ligament that connects the cricoid cartilage to the ________ cartilage.

Answer 51

thyroid

Question 52

Functions of the nasal cavity include all of the following, except

Answer 52

Correct acting as a damping chamber when coughing.

Question 53

The ring-shaped cartilage just inferior to the thyroid cartilage is the ________ cartilage.

Answer 53

cricoid

Question 54

The larynx, trachea, bronchi, and bronchioles all make up the

Answer 54

lower respiratory tract.

Question 55

Which of the following is not a function of the nasal mucosa?

Answer 55

dehumidify the incoming air

Question 56

The respiratory epithelium of the conducting airways consists of

Answer 56

pseudostratified ciliated columnar epithelium.

Question 57

Figure 23-1 The Upper Airways Use Figure 23-1 to answer the following questions: Identify the structure labeled "2."

Answer 57

internal nares

Question 58

________ is the most common lethal inherited disease affecting individuals of Northern European descent.

Answer 58

Cystic fibrosis

Question 59

The glottis is

Answer 59

the opening to the larynx.

Question 60

A patient with a connective tissue disease experiences increased pulmonary vascular resistance. Over a period of time you would expect to observe

Answer 60

Correct increased thickness of the right ventricular wall.

Question 61

The vocal folds are located within the

Answer 61

larynx

Question 62

Which of the following is not true about the pharynx?

Answer 62

Correct shared by the integumentary and respiratory systems

Question 63

The respiratory defense system is important because it

Answer 63

All of the answers are correct.

Question 64

Figure 23-1 The Upper Airways Use Figure 23-1 to answer the following questions: Identify the structure labeled "7."

Answer 64

oropharynx

Question 65

The activities of the digestive system are regulated by

Answer 65

All of the answers are correct

Question 66

Sensory nerve cells, parasympathetic ganglia, and sympathetic postganglionic fibres can be found in the

Answer 66

Sub mucosal plexus

Question 67

What organ is primarily responsible for water absorption?

Answer 67

Large intestine

Question 68

Which of the following contain adipose tissue and passing for the anterior and lateral portions of the abdomen?

Answer 68

Greater omentum

Question 69

The --- are double sheets of peritoneal membrane that suspend the visceral organs and Cary nerves, lymphatic sand blood vessels.

Answer 69

Mesenteries

Question 70

The root of a tooth is covered by

Answer 70

Cementum

Question 71

Functions of the tongue include all of the filling except

Answer 71

Partitioning of the oropharynx from the nasopharynx.

Question 72

Which of the following is an accessory organ of digestion?

Answer 72

Pancreas

Question 73

Which layer of the digestive tract directly underlies the epithelium?

Answer 73

Lamina propria

Question 74

The --- salivary glands are covered by the mucous membrane in the floor of the mouth

Answer 74

Sublingual

Question 75

The crown of a tooth is covered by

Answer 75

Enamel

Question 76

Which of these descriptions best match the term submucosal plexus?

Answer 76

Sensory neural network

Question 77

Each of the following organs is a component of the digestive tract, except the

Answer 77

Bladder

Question 78

The functions of the oral cavity include all of the filling except

Answer 78

Absorption of monosaccharides

Question 79

A feature of the digestive tract wall that increases surface area available for absorption is the

Answer 79

Plicae

Question 80

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

Answer 80

Filtration

Question 81

The serous membrane that lines the peritoneal cavity

Answer 81

All answers are correct

Question 82

A disease that attacks and disabled the myentric plexus would

Answer 82

Decrease intestinal motility

Question 83

The greater omentum is

Answer 83

A fatty sheet that hangs like an apron over the abdominal viscera

Question 84

Increased secretion by all the salivary glands results from

Answer 84

Parasympathetic stimulation

Question 85

Which of the following is a function of the tongue

Answer 85

All answers are correct

Question 86

Inmost cases the mumps is a viral infection of the

Answer 86

Partoid glands

Question 87

Large blood vessels and lymphatics are found in the

Answer 87

Submucosa

Question 88

Which layer of the digestive tract has a sense irregular connective tissue that surrounds the muscularis mucosae?

Answer 88

Submucosa

Question 89

The double layer of sheets of serous membrane that support the viscera are called

Answer 89

Mesenteries