Parts of a Neuron
Receive electrical signals from other neurons and transmit them towards the cell body.
Dendrites
The charge inside a neuron at rest is...
Negative
The division of the immune system that is always active.
Innate Immune System
Number of types of white blood cells.
Five
The vertebrate nervous system is divided into central and...
Peripheral
A long, thin fiber that carries electrical impulses away from the cell body towards other neurons.
Axon
This pump is always working during resting potential.
Na/K pump
The division in which immune cells recognize and remember specific pathogens.
Acquired/Adaptive Immune System
Cells that engulf bacteria and debris.
Phagocytes (Monocytes and Neutrophils)
The physical location where the members of a population live.
Habitat
The end of the axon where neurotransmitters are released to transmit signals to other neurons across the synapse.
Axon terminal
The third step of action potential.
Repolarization
Skin, mucus, earwax, tears, and stomach acid are example of...
Innate Immunity (first line of defense)
Makes blood cells.
Bone Marrow
The number of individuals of a species per unit area or unit volume of a habitat.
Population density
The junction between two neurons where signals are transmitted via neurotransmitters.
Synapse
The last step of action potential.
Return to resting potential
The immunity that targets antigens.
Adaptive/Acquired Immunity
Individual produces antibodies to an antigen;
long-lasting (memory cells are produced).
Active Immunity
Type of immunity where antibodies were made by another individual.
Passive Immunity
The central part of the neuron containing the nucleus and other organelles, responsible for maintaining the cell's basic functions.
Cell body (Soma)
Where the action potential is taking place in the neuron.
Axon
Around how many hours it takes for acquired immunity to respond.
48
Complementary molecules released into the blood by
activated immune cells to flag pathogens for phagocytosis, etc.
Antibodies.
Provide cell-mediated immunity by physically binding to and destroying "suspicious" cells.
Cytotoxic T-cells