Question 1

__________ participate in both innate immunity and the immune response.

Accepted Answer

A)  Memory T (TM)cells 
B)  Regulatory T (TR)cells 
C)  Natural killer (NK)cells 
D)  Helper T (TH)cells 
E)  Cytotoxic T (T
C) cells 
A)  Memory T (TM)cells 
B)  Regulatory T (TR)cells 
C)  Natural killer (NK)cells 
D)  Helper T (TH)cells 
E)  Cytotoxic T (T
C) cells D

Question 2

A(n)__________ is the region of the molecule that is recognized by antibodies.

Accepted Answer

A)  epitope 
B)  antigen 
C)  hapten 
D)  major histocompatibility complex (MH
C)  
E)  antibody monomer 
A)  epitope 
B)  antigen 
C)  hapten 
D)  major histocompatibility complex (MH
C)  
E)  antibody monomer A

Question 3

A person who is HIV-positive and has a helper T (TH)cell count lower than __________ has AIDS.

Accepted Answer

A)  20,000 cells/μL 
B)  5,000 cells/μL 
C)  1,000 cells/μL 
D)  200 cells/μL 
E)  50 cells/μL 
A)  20,000 cells/μL 
B)  5,000 cells/μL 
C)  1,000 cells/μL 
D)  200 cells/μL 
E)  50 cells/μL D

Question 4

Clonal selection of T cells happens in the thymus.

Accepted Answer

A) True 
 B)False

Question 5

Humoral immunity produces memory by increasing the number of cells and antibodies that can fight off a pathogen in the secondary response.

Accepted Answer

A) True 
 B)False

Question 6

__________ lacks the capacity to remember a pathogen or react differently to it in the future,whereas __________ utilizes memory cells to adapt to a given pathogen and ward it off more easily in the future.

Accepted Answer

A)  Innate immunity;cytotoxicity 
B)  Adaptive immunity;innate immunity 
C)  A natural killer cell;a macrophage 
D)  Innate immunity;adaptive immunity 
A)  Innate immunity;cytotoxicity 
B)  Adaptive immunity;innate immunity 
C)  A natural killer cell;a macrophage 
D)  Innate immunity;adaptive immunity

Question 7

Adaptive immunity involves skin,NK cells,and phagocytosis.

Accepted Answer

A) True 
 B)False

Question 8

Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called __________ and a vasodilator called __________.

Accepted Answer

A)  bradykinin;histamine 
B)  selectin;prostaglandin 
C)  histamine;heparin 
D)  heparin;histamine 
E)  prostaglandins;selectin 
A)  bradykinin;histamine 
B)  selectin;prostaglandin 
C)  histamine;heparin 
D)  heparin;histamine 
E)  prostaglandins;selectin

Question 9

Most Memory B cells are found circulating in the lymph.

Accepted Answer

A) True 
 B)False

Question 10

Memory T cells can be up to __________ old.

Accepted Answer

A)  weeks 
B)  days 
C)  decades 
D)  years 
E)  months 
A)  weeks 
B)  days 
C)  decades 
D)  years 
E)  months

Question 11

Before B cells secrete antibodies,they differentiate into _________.

Accepted Answer

A)  stem cells 
B)  antigen-presenting cells 
C)  plasma cells 
D)  T cells 
E)  macrophages 
A)  stem cells 
B)  antigen-presenting cells 
C)  plasma cells 
D)  T cells 
E)  macrophages

Question 12

Mucous membranes prevent most pathogens from entering the body because of the stickiness of the mucus and the presence of lysozymes.

Accepted Answer

A) True 
 B)False

Question 13

Special lymphatic vessels,called lacteals,absorb dietary __________ that are not absorbed by the blood capillaries.

Accepted Answer

A)  water 
B)  glucose 
C)  vitamins 
D)  amino acids 
E)  lipids 
A)  water 
B)  glucose 
C)  vitamins 
D)  amino acids 
E)  lipids

Question 14

The serum used for emergency treatment of snakebites stimulates __________ immunity.

Accepted Answer

A)  artificial passive 
B)  artificial active 
C)  natural passive 
D)  natural active 
A)  artificial passive 
B)  artificial active 
C)  natural passive 
D)  natural active

Question 15

Autoimmune diseases are disorders in which the immune system fails to distinguish __________ from foreign ones.

Accepted Answer

A)  self-immunoglobulins 
B)  self-antibodies 
C)  self-antigens 
D)  self-interleukins 
E)  self-complement proteins 
A)  self-immunoglobulins 
B)  self-antibodies 
C)  self-antigens 
D)  self-interleukins 
E)  self-complement proteins

Question 16

Cellular immunity uses B cells and humoral immunity uses antibodies.

Accepted Answer

A) True 
 B)False

Question 17

Lymph originates in blood capillaries that pick up tissue fluid.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is not an example of lymphatic tissue?

Accepted Answer

A)  Aggregated lymphoid nodule 
B)  MALT 
C)  Lymphatic nodules 
D)  Macrophages 
E)  Diffuse lymphatic tissue 
A)  Aggregated lymphoid nodule 
B)  MALT 
C)  Lymphatic nodules 
D)  Macrophages 
E)  Diffuse lymphatic tissue

Question 19

Complement fixation cannot lead to __________.

Accepted Answer

A)  enhanced inflammation 
B)  opsonization 
C)  endogenous pyrexia 
D)  bacterial phagocytosis 
E)  cytolysis 
A)  enhanced inflammation 
B)  opsonization 
C)  endogenous pyrexia 
D)  bacterial phagocytosis 
E)  cytolysis

Question 20

Which of the following cannot act as antigen-presenting cells?

Accepted Answer

A)  Reticular cells 
B)  Dendritic cells 
C)  Macrophages 
D)  B cells 
E)  T cells 
A)  Reticular cells 
B)  Dendritic cells 
C)  Macrophages 
D)  B cells 
E)  T cells

Exam 21: The Lymphatic and Immune Systems

__________ participate in both innate immunity and the immune response.

A(n)__________ is the region of the molecule that is recognized by antibodies.

A person who is HIV-positive and has a helper T (TH)cell count lower than __________ has AIDS.

Clonal selection of T cells happens in the thymus.

Humoral immunity produces memory by increasing the number of cells and antibodies that can fight off a pathogen in the secondary response.

__________ lacks the capacity to remember a pathogen or react differently to it in the future,whereas __________ utilizes memory cells to adapt to a given pathogen and ward it off more easily in the future.

Adaptive immunity involves skin,NK cells,and phagocytosis.

Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called __________ and a vasodilator called __________.

Most Memory B cells are found circulating in the lymph.

Memory T cells can be up to __________ old.

Before B cells secrete antibodies,they differentiate into _________.

Mucous membranes prevent most pathogens from entering the body because of the stickiness of the mucus and the presence of lysozymes.

Special lymphatic vessels,called lacteals,absorb dietary __________ that are not absorbed by the blood capillaries.

The serum used for emergency treatment of snakebites stimulates __________ immunity.

Autoimmune diseases are disorders in which the immune system fails to distinguish __________ from foreign ones.

Cellular immunity uses B cells and humoral immunity uses antibodies.

Lymph originates in blood capillaries that pick up tissue fluid.

Which of the following is not an example of lymphatic tissue?

Complement fixation cannot lead to __________.

Which of the following cannot act as antigen-presenting cells?

Major Themes of Anatomy and Physiology

The Chemistry of Life

Cellular Form and Function

Genetics of Cellular Function

Histology

The Integumentary System

Bone Tissue

The Skeletal System

Joints

The Muscular System

Muscular Tissue

Nervous Tissue

The Spinal Cord,spinal Nerves,and Somatic Reflexes

The Brain and Cranial Nerves

The Autonomic Nervous System and Visceral Reflexes

Sense Organs

The Endocrine System

The Circulatory System: Blood

The Circulatory System: Heart

The Circulatory System: Blood Vessels and Circulation

The Respiratory System

The Urinary System

Fluid, electrolyte, and Acidbase Balance

The Digestive System

Nutrition and Metabolism

The Male Reproductive System

The Female Reproductive System

Human Development and Aging

Atlas a General Orientation to Human Anatomy

Filters

A person who is HIV-positive and has a helper T (T_H)cell count lower than __________ has AIDS.

lacks the capacity to remember a pathogen or react differently to it in the future,whereas utilizes memory cells to adapt to a given pathogen and ward it off more easily in the future.

Basophils of the blood help to get defensive leukocytes to the site quickly by releasing an anticoagulant called and a vasodilator called .