BLD434 EXAM QUESTIONS AND ANSWERS WITH COMPLETE
SOLUTIONS VERIFIED
Antigen
Particular part of a pathogen that B and T lymphocytes respond to. Any molecule or
fragment that is recognized by an antibody or B-cell receptor, or can be bound by an
MHC molecule and presented to a T-cell receptor. Antigen enters lymph node via fluid
draining from tissues (in afferent lymph vessels).
Innate Immunity
Rapid responses that eliminate infecting microorganisms before they disrupt human
tissue. This immune response produces a state of inflammation at sites of infection. The
study of inflammation
Adaptive Immunity
Adapt to the particular microorganism and are continually refined in the course of
infection. The study of immunology
Sebum
Secreted by the sebaceous glands associated with hair follicles. It contains fatty acids
and lactic acids which help to inhibit bacterial growth on the skin surface.
Lysozyme
An enzyme that kills bacteria by killing their cell walls
Polymorphonuclear
, The nucleus pulls itself apart into lobes, the granulocytes are also known as
polymorphonuclear leukocytes
Primary lymphoid tissue
Anatomical site of lymphocyte development, in humans, this is the bone marrow (where
B lymphocytes develop) and the thymus (where T lymphocytes develop from precursor
cells that have migrated from the bone marrow), AKA central lymphoid tissue.
Secondary lymphoid tissue
The lymph nodes, spleen, and mucosa-associated lymphoid tissue, these are tissues in
which immune responses are initiated. AKA peripheral lymphoid tissue. (MALT, GALT,
BALT).
Lymph
Mixture of extracellular fluid and cells that is carried by the lymphatic system.
Naive lymphocyte
They have not yet been activated by antigen or pathogen during their lifetime. Naive
lymphocytes enter via arterioles (blood vessels, arteries), exit via efferent lymph.
PALS (Periarteiolar lymphoid sheath)
In the periarteiolar lymphoid sheath, the lymphocytes near the arteriole are mostly T
cells, whereas B cells are situated peripherally.
GALT
Gut associated lymphoid tissue, all lymphoid tissue associated with the gastrointestinal
tract.
BALT
SOLUTIONS VERIFIED
Antigen
Particular part of a pathogen that B and T lymphocytes respond to. Any molecule or
fragment that is recognized by an antibody or B-cell receptor, or can be bound by an
MHC molecule and presented to a T-cell receptor. Antigen enters lymph node via fluid
draining from tissues (in afferent lymph vessels).
Innate Immunity
Rapid responses that eliminate infecting microorganisms before they disrupt human
tissue. This immune response produces a state of inflammation at sites of infection. The
study of inflammation
Adaptive Immunity
Adapt to the particular microorganism and are continually refined in the course of
infection. The study of immunology
Sebum
Secreted by the sebaceous glands associated with hair follicles. It contains fatty acids
and lactic acids which help to inhibit bacterial growth on the skin surface.
Lysozyme
An enzyme that kills bacteria by killing their cell walls
Polymorphonuclear
, The nucleus pulls itself apart into lobes, the granulocytes are also known as
polymorphonuclear leukocytes
Primary lymphoid tissue
Anatomical site of lymphocyte development, in humans, this is the bone marrow (where
B lymphocytes develop) and the thymus (where T lymphocytes develop from precursor
cells that have migrated from the bone marrow), AKA central lymphoid tissue.
Secondary lymphoid tissue
The lymph nodes, spleen, and mucosa-associated lymphoid tissue, these are tissues in
which immune responses are initiated. AKA peripheral lymphoid tissue. (MALT, GALT,
BALT).
Lymph
Mixture of extracellular fluid and cells that is carried by the lymphatic system.
Naive lymphocyte
They have not yet been activated by antigen or pathogen during their lifetime. Naive
lymphocytes enter via arterioles (blood vessels, arteries), exit via efferent lymph.
PALS (Periarteiolar lymphoid sheath)
In the periarteiolar lymphoid sheath, the lymphocytes near the arteriole are mostly T
cells, whereas B cells are situated peripherally.
GALT
Gut associated lymphoid tissue, all lymphoid tissue associated with the gastrointestinal
tract.
BALT
