Section 4: Blood and Immunity Flashcards
Plasma
Colorless fluid part of blood, lymph, or milk
Red Blood Cells
carry oxygen from the lungs and deliver it throughout the body
Virus
an infective agent that typically consists of a nucleic acid molecule
Swelling
any abnormal enlargement of a body part
Threshold Potential
Level to which membrane potential must be depolarized to initiate an action potential
Action Potential
occurs when the membrane potential of a specific cell rapidly rises and falls
Presynaptic Neuron
transmits the signal toward a synapse
Anemia
a condition marked by a deficiency of red blood cells or the hemoglobin in the blood.
Bacteria
a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus.
self antigens
receptors on the surface of cells