Bio 252 Exam 1 Study Guide
Three fundamental physiological properties of neurons, or nerve cells - Ans:-Excitability
Conductivity
Secretion
Excitability - Ans:-the ability of a cell to respond to a stimulus, especially the ability of nerve and
muscle cells to produce membrane voltage changes i...
Sensory neurons - Ans:✔✔-Afferent = signal conduction towards the CNS
-conduct signals from receptors to the CNS
-are specialized to detect stimuli such as light, heat, pressure, and chemicals, and transmit information
about them to the CNS
-these neurons begin in almost every organ in the body and end in the CNS
Interneuron - Ans:✔✔--Association neuron
-called interneurons because they lie between and interconnect incoming sensory pathways and
outgoing motor pathways
-confined to the CNS
-receive signals from many other neurons and carry out the integrative function of the nervous system =
they process, story, and receive information and "make decisions" that determine how the body
responds to a stimuli
-90% of our neurons are interneurons
-
Motor - Ans:✔✔--Efferent = signifies conduction away from CNS
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