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Ch 27 animal diversity
Ch 37 Neurons
Ch 38 Nervous systems
potpourri
wild card
100
A type of symmetry observed in Cnidarians
What is radial symmetry?
100
A type of neuron that transmits information about external stimuli
What is a sensory neuron?
100
A type of cell that nourishes, supports, and regulates the functioning of neurons in various ways
What are glia?
100
a chemical released by axon terminals that bind to receptors on the postsynaptic membrane
What is a neurotransmitter?
100
A type of sensory receptor in many animals (sea turtles, birds) that help orient the animals during long distance migrations
What are electromagnetic receptors?
200
A metazoan animal, lacking true tissues
What is a sponge?
200
A vertebrate adaptation in axons allowing fast transmission of signals
What is myelination?
200
a simple and diffuse nervous system with no centralized organization, found in Cnidarians
What is a nerve net?
200
type of receptor that detects odorants and tastants
What are chemoreceptors?
200
A term used to describe the membrane potential of a cell during an action potential
What is depolarization?
300
A chordate, resembling the ancestral chordate, showing all 4 shared derived chordate characteristics in the adult form
What is a lancelet?
300
The structure(s) of a neuron that first receives an impulse from another cell.
What are dendrites?
300
PNS neurons that transmit information to the CNS?
What are afferent neurons?
300
A group of gnathostomes with a cartilaginous skeleton
What is a condrichthyan?
300
the neurotransmitter involved in the the brain's reward system
What is dopamine?
400
Evolution of this feature was a key adaptation to becoming more terrestrial and less independent of water, first seen in reptiles.
What is the amniotic egg?
400
the type of channel that opens when threshold is reached and an action potential is triggered
What are Na gated ion channels
400
The structure in the brain that regulates the biological clock and the body's thermostat
What is the hypothalamus?
400
lacking in mammals, but present in the bird cerebrum involved in sophisticated information processing
What is the pallium?
400
A taxonomic group which includes amphibians, reptiles and birds
What is a tetrapod?
500
A distinguishing characteristic of tetrapods
What are limbs with digits?
500
a postsynaptic potential which hyperpolarizes the postsynaptic membrane
What is an inhibitory postsynaptic potential
500
The region of the brain where dopamine is released to trigger the brain's reward system
What is the ventral tegmental area?
500
a term used to describe how synaptic connections can be strengthened or weakened
What is neuronal plasticity?
500
the segments of vertebrate axons which contain voltage gated ion channels and can generate action potentials
What is a node of Ranvier?