BIOL 3240 Exam 1
What are the two major cell types in the brain?
Neurons; glial cells
What are some ways cell types can be defined?
morphology; transcription profile; cell properties, function; context
Two characteristics of neurons
asymmetrical, excitable
There are ____ major types of glial cell
five
A neuron is a post ____ cell
Mitotic
Neurons are both _____ and _____ excitable
chemically, electrically
_________ neurons have only one process that bifurcates into a dendritic end and an
axonal end
Unipolar
Most neurons in invertebrates are _____
unipolar
_____ neurons have two processes: one dendritic structure and one axonal.
bipolar
Many sensory neurons in vertebrates are ____ neurons
bipolar
_______ neurons start as bipolar, but the processes fuse into a single continuous
structure that emerges from a single point on the soma.
pseudo unipolar
_____ neurons usually have a single axon and multiple dendritic structures
Multipolar
Where are pseudo unipolar neurons found?
somatosensory system
Most neurons in the human brain are
Multipolar
Neurons that connect sensory neurons to motor neurons are called
Interneurons
Neurons that integrate and process an electrical signal into a command signal are
called
Interneurons