Section 4: Blood and Immunity Flashcards

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1
Q

Plasma

A

Colorless fluid part of blood, lymph, or milk

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2
Q

Red Blood Cells

A

carry oxygen from the lungs and deliver it throughout the body

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3
Q

Virus

A

an infective agent that typically consists of a nucleic acid molecule

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4
Q

Swelling

A

any abnormal enlargement of a body part

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5
Q

Threshold Potential

A

Level to which membrane potential must be depolarized to initiate an action potential

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6
Q

Action Potential

A

occurs when the membrane potential of a specific cell rapidly rises and falls

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7
Q

Presynaptic Neuron

A

transmits the signal toward a synapse

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8
Q

Anemia

A

a condition marked by a deficiency of red blood cells or the hemoglobin in the blood.

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9
Q

Bacteria

A

a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus.

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10
Q

self antigens

A

receptors on the surface of cells

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