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CSD 350 Exam 1 Questions And Accurate Answers Graded A+
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CSD 350 Exam 1 Questions And AccurateAnswers Graded A+
What category is the Brain classified under? -Answer The Brain is an organ.
How many Neurons does the Brain consist of? -Answer About 100 Billion
Who discovered the Neuron Doctrine? -Answer Ramon y Cajal
What is the Neuron Doctrine? -Answer The theory that neurons are the signaling units of
the nervous system-comprise a web/network.
What does the Neuron Doctrine believe a neuron is? -Answer Each neuron is a discrete
cell with distinction process arising from its cell body
What do Ancient Egyptians believed the brain was? -Answer Heart is center of emotion,
thought, and personality
What did the Ancient Greeks believe about the brain? -Answer The Brian is the center
for sensation and movement
What does Aristotle say about the brain? -Answer "The brain is the sponge that keeps
the heart cold"
When does Aristotle discuss the brain? -Answer 4th century BC
What does Franz Joesph Gall say about the brain? -Answer Said that the brain is the
source for everything
,What is Phrenology? -Answer A pseudoscience describing the "correlation" of a
person's personality with head / skull measurements and bumps
What is the modern theory of Functional Localization in the Brain? -Answer Localization
of basic functions (sensory, motor, autonomic) to regions of the brain
Who discovered the Golgi Stain? -Answer Ramon y Cajal
What did Ramon y Cajal develop? -Answer The Neuron Doctrine and the Golgi Stain
What is the Golgi Stain? -Answer A process of dying neurons that only stains 1 in 100
neurons, cell body, axon and all dendritic processes allowing for a better visual of
individual neurons
How many Neurons are in the Brain? -Answer 100 billion neurons are in the brain
How many Glial Cells are in the Brain? - Answer 1-10x as many neurons (100 billion)
How many Synapses are in the Brain? - Answer 100 trillion to 1 quadrillion synapses
What are main functions of neurons? - Answer Neurons process and transmit neurons
What are Glial Cells? - Answer Glial Cells surround and support the neurons. They
regulate neural firing. They help provide blood supply to the neuron.
What are Synapses? -Answer Synapses are the connections between neurons
(microscopic space where 2 neurons meet)
, In what ways is a brain similar to a computer? -Answer -Sends and receives info
extremely fast
-Can fail when parts are missing
-Multitasking
-Store Information
In what ways is a brain different than a computer? -Answer -Computer is not reliable,
have glitches, and break
-Computers are easily damaged
-Brain gains information and learns from experiences
-Brain doesn't require an operator it is its own
-Brain can never be turned off
-Brain is plastic/enduring and impervious to damage
-Brains have evolved over millions of years
Evolution of the Brain -Why- Same types of brain cells found in primitive mammals and in
humans
-No known neurotransmitters that are specific to the human brain
-Increase in brain size due to dietary changes
-Similarity of the brain across species
What is the Axon? -
What is the Cell Body? -
What is the Soma? Answer The cell body
What is the Nodes of Ranvier? -
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