2025 GRADE A 100% VERIFIED
The specific foreign substances that an individualʹs immune system has the ability to recognize
and resist is determined by? ANS>>> D, individual genetic makeup
The bodyʹs first line of defense against the invasion of disease-causing microorganisms is? ANS>>> B,
skin and mucous membranes
Which of these lymphoid organs is found along the left side of the abdominal cavity? ANS>>> E, Spleen
Which one of the following is NOT an autoimmune disease? ANS>>> A, AIDS
Which one of the following is NOT true of macrophages? ANS>>> C, they circulate continuously
throughout the body
Describe the flow of lymph. ANS>>> A, Toward the heart only
Which one of the following is NOT one of the four most common indicators of the inflammatory
response? ANS>>> E, fever
Regardless of whether it matures into a B cell or a T cell, a lymphocyte that is capable of responding to a
specific antigen by binding to it is said to be? ANS>>> A, immunocompetent
Allergic contact dermatitis following skin contact with poison ivy would normally lead to? ANS>>> D,
delayed hypersensitivity
The specific type of acquired immunity that a fetus obtains from maternal antibodies that cross
the placenta is called? ANS>>> C, naturally acquired passive immunity
Which one of the following is NOT a mechanism that aids lymph return?
, A) smooth muscle contractions within the lymphatic vessels
B) milking action of skeletal muscles
C) pressure changes within the thorax
D) the pumping action of the heart
E) presence of valves within the larger lymph vessels ANS>>> D, the pumping action of the heart
The bodyʹs temperature-regulating ʺthermostatʺ that can be reset upward in response to
pyrogens is located in the? ANS>>> E, hypothalamus
The specific antibody class that has the ability to cross the placental barrier and provide
immunity to the fetus is? ANS>>> A, IgG
The inflammatory process begins with release of chemicals, which do all of the following
EXCEPT? ANS>>> E, Stimulate release of lysozyme
Compared to the nonspecific chemicals that cover body surfaces and mucous membranes, the
specific body defense system is? ANS>>> B, Slower
Which one of the following is NOT true of basic antibody structure? ANS>>> E, the light chains are often
differing lengths
Which one of the following is NOT a type of immunosuppressive therapy given after surgery to
prevent rejection of a graft? ANS>>> B, gamma globulin
Vaccines are NOT for? ANS>>> A, snake bites
B cells develop immunocompetence in the? ANS>>> B, bone marrow