Textbook Quiz - Lymphatic + Immunity Flashcards
The tissue of which organ is called pulp?
spleen
The structure of a lymphatic vessel is most similar to that of a(n)
vein
The two collecting ducts that drain the lymphatic trunks are the
thoracic duct and right lymphatic duct
Lymph nodes of the axillary region receive lymph primarily from the
arm and mammary gland
drains lymph from most of the body
the thoracic duct
carry lymph toward lymph nodes
afferent lymph vessels
the functions of the lymphatic system include
- A) draining excess interstitial fluid
- B) transporting dietary lipids
- C) carrying out immune responses
- D) all of these choices
D) all of the above
lymphatic vessels are lined with
endothelium
filled with lymph
medullary sinuses of lymph nodes
lymph from the cisterna chyli empties into the
thoracic duct
the largest single mass of lymphatic tissue in the adult human body is the
spleen
All of these choices are non-specific defense mechanisms except
- A) flow of saliva
- B) phagocytosis
- C) neutralization of an antigen by an antibody
- D) gastric juice acidity
C) neutralization of an antigen by an antibody
Lymphocytes that destroy cancerous cells in a non-specific fashion are called
natural killer cells
Which of the following does NOT function to increase vasodilation and permeability of blood vessels?
- A) defensins
- B) histamine
- C) prostaglandins
- D) kinins
A) defensins
interferon is produced in response to the presence of
viruses
the two major types of phagocytic cells are
neutrophils and macrophages
which of the following cell types is derived from monocytes
- A) neutrophil
- B) wandering macrophage
- C) mast cell
- D) histiocyte
B) wandering macrophage
natural killer cells are
lymphocytes
movement of cells from the circulatory system into infected areas
emigration
the proper sequence of phases in the process of phagocytosis is
chemotaxis, adherence, ingestion
after phagocytosis, which intracellular chemicals kill the microbe by a process called an oxidative burst?
lethal oxidants
the first stage of inflammation is
vasodilation and increased permeability of blood vessels
the lymphokine interleukin - 2
stimulates T-cell proliferation
Which of the following is a specific body defense mechanism?
- A) phagocytosis
- B) inflammation
- C) immunity
- D) fever
C) immunity
normal immune responses require the presence of
both T lymphocytes and B lymphocytes
A hapten is an antigen that has
reactivity but not immunogenicity
Interleukin - 1
is a fever-causing cytokine
responsible for antibody-mediated immunity
B lymphocytes
The Class I major histocompatibility complex (MHCI) antigens
mark the surfaces of all your body cells except your RBCs
antigen presenting cells (APCs) include
macrophages
Which part of the antigen triggers the immune response
epitopes
antigen recognition by a T-cell receptor with Cd4 or Cd8 proteins is the ___ in the activation of a T-cell.
first signal
when stimulated, T cells that display the CD8 molecule develop into
cytotoxic T cells
Cytotoxic T cells can kill target cells directly by secreting
perforin and granulysin
The most abundant type of immunoglobin is
IgG
After recovering from certain diseases, one may have developed ___ immunity to the disease
naturally acquired active
The antibodies involved in allergic reactions are
in the IgE class
An immunoglobin is
an antibody
is chemotactic and attracts phagocytic cells
complement
an activated B cell develops into a clone of
antibody-producing plasma cells
Antibodies are composed of
2 heavy and 2 light polypeptide chains
Lack of reactivity of T cells and B cells to fragments of one’s own proteins is known as
self-tolerance
a tissue transplant in which one’s own tissue is grafted to another part of the body is called
an autograft
