Exam #2 Miscellaneous Flashcards

1
Q

Pokeweed mitogen stimulates ______, while phytohemagglutinin stimulates ______.

A

both B and T lymphocytes; just T lymphocytes

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2
Q

In beta thalassemia major, there is still _____.

A

some Hgb A

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3
Q

CGD can be _______.

A

X-linked recessive or autosomal recessive

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4
Q

A _________ is a syndrome in which immature leukocytes are found in the blood.

A

leukemoid reaction

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5
Q

Neutrophil myeloperoxidase doesn’t usually cause disease, with the major exception being ________.

A

fungal infections in diabetics

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6
Q

Cyclic neutropenia usually follows a ______ cycle.

A

21-day

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7
Q

Positive selection selects against _______.

A

cells that fail to recognize a self protein

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8
Q

What is the histologic difference between resting and active lymphocytes?

A

Active lymphocytes will have large nuclei

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9
Q

In the lymph nodes, dendritic cells are often _______.

A

between the cortex and paracortex

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10
Q

List three types of intracellular bacteria.

A

Mycobacteria, listeria, and brucella

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11
Q

What part of the TCR is activated by both MHC I and MHC II?

A

CD3

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12
Q

When do T cells display CD1?

A

In the thymus

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