Chapter Quiz 1 Flashcards
Dendrites are
the input zone of a nerve cell
Which pathway represents the most common sequence of information flow through a neuron?
Dendrite –> cell body –> axon –> axon terminal
Which statement about neurons is true?
All neurons have the same four functional zones
Axonal transport is
bidirectional, moving materials from the neuronal cell body toward the axon terminals, and from axon terminals back to the cell body
Which glial cells interact with blood vessels?
astrocytes
The somatic nervous system includes the
cranial nerves and the spinal nerves
The reason that sympathetic and parasympathetic nervous systems have different effects on the organs is because
they release different neurotransmitters
Which of the following is not a consequence of parasympathetic activation?
increased heart rate
The human brain is essentially folded into the skull; about two-thirds of it is hidden within the folds (sulci), thereby allowing
a larger surface area to fit into the cranial space
Almost all incoming sensory information passes through the ______, which sends the information on to the overlying cortex
thalamus
The _______ is a major source of dopaminergic projections and plays a role in Parkinson’s disease
substantia nigra
Which type of stain is used to reveal the entire neuron with all its processes?
Golgi
MRI makes use of _______ waves and _______ fields to form images of the structure of the living brain
radio; magnetic
While ______ studies can tell us which behavioral and bodily variables may be linked, they cannot reveal ________
correlational; causality
The idea that we can understand complex systems by looking at their simpler constituent parts is known as
reductionism
Axon terminals
form synapses onto other cells
What would be the consequence for a patient with damage to the eighth cranial nerve?
impaired balance
The central sulcus divides the _______ and _______ lobes
frontal; parietal
The brainstem consists of the
midbrain, pons, and medulla
The structure known to be crucial for motor coordination and control and certain aspects of cognition is the ______
cerebellum
