Question 1

Which chemical induces prolonged contraction of smooth muscle during allergic reactions?

Accepted Answer

A) basophil chemotactic factor 
B) eosinophil chemotactic factor 
C) histamine 
D) SRS-A 
E) TP-2 
A) basophil chemotactic factor 
B) eosinophil chemotactic factor 
C) histamine 
D) SRS-A 
E) TP-2

Question 2

____________________ refers to the phenomenon of the immune system not attacking a person's own tissues.

Accepted Answer

The answer of ____________________ refers to the phenomenon of the...

Question 3

Which of the following statements about cancer cells is/are incorrect?

Accepted Answer

A) They arise only when multiple independent mutations occur within the same cell. 
B) They lack the ability to perform the specialized functions of the normal cell-type from which they mutated. 
C) The body has no means by which to defend against them. 
D) They usually do not adhere well to neighboring cells, so some of them may break away from the parent tumor. 
E) Both a and d are incorrect 
A) They arise only when multiple independent mutations occur within the same cell. 
B) They lack the ability to perform the specialized functions of the normal cell-type from which they mutated. 
C) The body has no means by which to defend against them. 
D) They usually do not adhere well to neighboring cells, so some of them may break away from the parent tumor. 
E) Both a and d are incorrect

Question 4

Match defense cell with the correct characteristic.
a.keratinocytes
b.melanocytes
c.Langerhans cells
d.Granstein cells
-Produce hair and nails

Accepted Answer

The answer of Match defense cell with the correct characteristic.
a.keratinocytes
b.melanocytes
c.Langerhans...

Question 5

What type of immune defense cell is selectively invaded by AIDS virus?

Accepted Answer

A) cytotoxic T cells 
B) helper T cells 
C) suppressor T cells 
D) macrophages 
E) neutrophils 
A) cytotoxic T cells 
B) helper T cells 
C) suppressor T cells 
D) macrophages 
E) neutrophils

Question 6

The ________ pathway for complement activation involves binding with immunoglobulins, while the ________ pathway involves binding to carbohydrate chains on a microbial surface.

Accepted Answer

classical,

Question 7

A carcinogenic factor causes ____________________.

Accepted Answer

The answer of A carcinogenic factor causes ____________________....

Question 8

The arm regions of an antibody determine with what antigen the antibody can bind, whereas the tail portion determines the destiny of the antibody once it is bound.

Accepted Answer

A) True 
 B)False

Question 9

Humoral immunity involves the production of chemicals called ____________________, which are released from B lymphocyte derivatives.

Accepted Answer

The answer of Humoral immunity involves the production of chemicals...

Question 10

The ____________________ is the layer of the skin without a direct blood supply and it serves as a nonspecific barrier to foreign particles entering the body.

Accepted Answer

The answer of The ____________________ is the layer of the...

Question 11

Describe the body's primary and secondary immune responses.

Accepted Answer

The primary response is the body's respo

Question 12

Cell adhesion molecules that protrude from the inner endothelial lining and causes leukocytes to marginate are called ________.

Accepted Answer

The answer of Cell adhesion molecules that protrude from the...

Question 13

The premise that a T cell must receive two specific simultaneous signals to be activated, one from its compatible antigen and a stimulatory cosignal molecule on the surface of an APC is called clonal ___________.

Accepted Answer

The answer of The premise that a T cell must...

Question 14

Fever results from neurological activity in the cerebellum.

Accepted Answer

A) True 
 B)False

Question 15

Which cell type in the epidermis produces a pigment that absorbs ultraviolet light?

Accepted Answer

A) keratinocyte 
B) melanocyte 
C) Langerhans cell 
D) Granstein cell 
E) sebaceous cell 
A) keratinocyte 
B) melanocyte 
C) Langerhans cell 
D) Granstein cell 
E) sebaceous cell

Question 16

Which of the following is not a possible cause of autoimmune disease?

Accepted Answer

A) reduction in suppressor T cell activity 
B) prolonged treatment with anti-inflammatory drugs 
C) exposure of normally inaccessible self-antigens 
D) modification of normal self-antigens 
E) exposure to a foreign antigen almost identical structurally to a self-antigen 
A) reduction in suppressor T cell activity 
B) prolonged treatment with anti-inflammatory drugs 
C) exposure of normally inaccessible self-antigens 
D) modification of normal self-antigens 
E) exposure to a foreign antigen almost identical structurally to a self-antigen

Question 17

____ T cells release perforin.

Accepted Answer

A) Cytotoxic 
B) Helper 
C) Suppressor 
D) Regulatory 
E) Inhibitory 
A) Cytotoxic 
B) Helper 
C) Suppressor 
D) Regulatory 
E) Inhibitory

Question 18

Indicate which type of T cell is being described by writing the appropriate letter in the blank using the following answer code:
a.cytotoxic T cells
b.helper T cells
c.suppressor T cells
-Recognize class II MHC glycoproteins

Accepted Answer

The answer of Indicate which type of T cell is...

Question 19

Immediate hypersensitivity reactions are mediated by IgE secreted by B cells, whereas delayed hypersensitivity is mediated by T cells.

Accepted Answer

A) True 
 B)False

Question 20

The epidermis

Accepted Answer

A) has an outermost keratinized layer that is tough, airtight, and fairly waterproof 
B) contains melanocytes, keratinocytes, Langerhans cells, Granstein cells, and transient T lymphocytes 
C) has a richly vascularized inner layer 
D) has characteristics a and b 
E) has none of the above characteristics 
A) has an outermost keratinized layer that is tough, airtight, and fairly waterproof 
B) contains melanocytes, keratinocytes, Langerhans cells, Granstein cells, and transient T lymphocytes 
C) has a richly vascularized inner layer 
D) has characteristics a and b 
E) has none of the above characteristics

Which chemical induces prolonged contraction of smooth muscle during allergic reactions?

____________________ refers to the phenomenon of the immune system not attacking a person's own tissues.

Which of the following statements about cancer cells is/are incorrect?

Match defense cell with the correct characteristic. a.keratinocytes b.melanocytes c.Langerhans cells d.Granstein cells -Produce hair and nails

What type of immune defense cell is selectively invaded by AIDS virus?

The pathway for complement activation involves binding with immunoglobulins, while the pathway involves binding to carbohydrate chains on a microbial surface.

A carcinogenic factor causes ____________________.

The arm regions of an antibody determine with what antigen the antibody can bind, whereas the tail portion determines the destiny of the antibody once it is bound.

Humoral immunity involves the production of chemicals called ____________________, which are released from B lymphocyte derivatives.

The ____________________ is the layer of the skin without a direct blood supply and it serves as a nonspecific barrier to foreign particles entering the body.

Describe the body's primary and secondary immune responses.

Cell adhesion molecules that protrude from the inner endothelial lining and causes leukocytes to marginate are called ________.

The premise that a T cell must receive two specific simultaneous signals to be activated, one from its compatible antigen and a stimulatory cosignal molecule on the surface of an APC is called clonal ___________.

Fever results from neurological activity in the cerebellum.

Which cell type in the epidermis produces a pigment that absorbs ultraviolet light?

Which of the following is not a possible cause of autoimmune disease?

____ T cells release perforin.

Indicate which type of T cell is being described by writing the appropriate letter in the blank using the following answer code: a.cytotoxic T cells b.helper T cells c.suppressor T cells -Recognize class II MHC glycoproteins

Immediate hypersensitivity reactions are mediated by IgE secreted by B cells, whereas delayed hypersensitivity is mediated by T cells.

The epidermis

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology: the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive System

Filters

Exam 12: Body Defenses

Which chemical induces prolonged contraction of smooth muscle during allergic reactions?

____________________ refers to the phenomenon of the immune system not attacking a person's own tissues.

Which of the following statements about cancer cells is/are incorrect?

Match defense cell with the correct characteristic. a.keratinocytes b.melanocytes c.Langerhans cells d.Granstein cells -Produce hair and nails

What type of immune defense cell is selectively invaded by AIDS virus?

The ________ pathway for complement activation involves binding with immunoglobulins, while the ________ pathway involves binding to carbohydrate chains on a microbial surface.

A carcinogenic factor causes ____________________.

The arm regions of an antibody determine with what antigen the antibody can bind, whereas the tail portion determines the destiny of the antibody once it is bound.

Humoral immunity involves the production of chemicals called ____________________, which are released from B lymphocyte derivatives.

The ____________________ is the layer of the skin without a direct blood supply and it serves as a nonspecific barrier to foreign particles entering the body.

Describe the body's primary and secondary immune responses.

Cell adhesion molecules that protrude from the inner endothelial lining and causes leukocytes to marginate are called ________.

The premise that a T cell must receive two specific simultaneous signals to be activated, one from its compatible antigen and a stimulatory cosignal molecule on the surface of an APC is called clonal ___________.

Fever results from neurological activity in the cerebellum.

Which cell type in the epidermis produces a pigment that absorbs ultraviolet light?

Which of the following is not a possible cause of autoimmune disease?

____ T cells release perforin.

Indicate which type of T cell is being described by writing the appropriate letter in the blank using the following answer code: a.cytotoxic T cells b.helper T cells c.suppressor T cells -Recognize class II MHC glycoproteins

Immediate hypersensitivity reactions are mediated by IgE secreted by B cells, whereas delayed hypersensitivity is mediated by T cells.

The epidermis

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

Principles of Endocrinology: the Central Endocrine Glands

The Peripheral Endocrine Glands

The Reproductive System

Filters

The pathway for complement activation involves binding with immunoglobulins, while the pathway involves binding to carbohydrate chains on a microbial surface.