Chapter 2 Quiz Flashcards
Fill in the Blank: Cortical columns of neurons in the cortex serve as “information _______________________ units”.
processing
Fill in the Blank: The main band of axons that connects the two cerebral hemispheres is known as the ______________ ___________ (2 words)
corpus callosum
Based on the illustrations of the brain by Santiago Ramon y Cajal, the neuron doctrine states that:
The brain is made up of neurons that do not touch and that communicate across synapses
The ability to visualize neurons was greatly enhanced with the invention of ______________ which reveal the entire neuron (just not EVERY neuron).
Golgi stains
Neurons are separated by and communicate across ______________ by releasing neurotransmitters.
Synapses
True or False: One of the four functional zones of a neuron is astrocytes (creating the blood brain barrier)
False
True or False: 3 of the 4 functional zones of a neuron include: dendrites (receiving information), terminal buttons (transmitting information), and axon (conduction zone)
True
True/False: When faced with an external threat (e.g., a raging bull, charging lion, or an angry boss) our body goes into a fight or flight responds by activating the parasympathetic nervous system.
False
the 4 lobes of the brain are frontal, parietal, temporal and _____________
occipital
Neurotransmitters are released from the ________________ into the _______________ to be taken up by the _________________.
presynaptic membrane; synaptic cleft; postsynaptic membrane
Glial cells serve what purpose in the nervous system?
to provide structure, nourishment, and other support to the neurons
A neuron with many dendrites and a single axon is known as a(n) ___________ neuron.
multipolar
True/False: An oligodendrocyte is a type of neuron.
False
Carter touched a hot pan and immediately pulled his hand away in pain. The pain signals traveled to his central nervous system via ___________________ and the command to pull his hand away reached his muscles via the ____________________.
sensory neurons; motoneurons
Our bodies are wired so that information coming in from one side of the body is sent to and processed by the opposite hemisphere of the brain. This arrangement is known as __________________ wiring.
contralateral
The dura mater, pia mater, and arachnoid layer are all parts of the:
meninges
