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Anatomy Test #3b
Sample Ques#2
61
Anatomy
Not Applicable
12/04/2007
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Term
primary motor cortex is located on the
 Definition
precentral gyrus
Term
an inhibitory postsynaptic potential ____
 Definition
hyperpolarizes a neuron
Term
the summation of the synaptic potentials from more than one presynaptic neuron is called
 Definition
spatial summation
Term
the part of the nervous system containing the brain and the spinal cord is the
 Definition
central nervous system
Term
the strengths of the sensory stimuli or summated synaptic potentials is often encoded as
 Definition
the frequency of production of action potentials
Term
which of the following cells is a type of macrophage that is specific to the vertebrate cerntral nervous system
 Definition
microglia
Term
information coming from the eye is said to belong to the
 Definition
special senses
Term
decussation refers to
 Definition
crossing of fibers from one side of the brain to the other
Term
the pattern of white matter in the cerebellum is called
 Definition
arbor vitae
Term
the pyramids are found in the
 Definition
medulla
Term
the part of the brain that can directly influence or inhibit the release of hormones from the pituitary is the
 Definition
hypothalamus
Term
of the 3 types of muscle fibers, which is the quickest to fatigue?
 Definition
fast glycolytic
Term
cell bodies of the sensory neurons are located in the
 Definition
dorsal root ganglia of the spinal cord
Term
the central sulcus separates which lobes
 Definition
frontal from parietal
Term
any stimulus that you are aware of or any conscious behavior is associated with
 Definition
the cerebral cortex
Term
the ______ is comprised of the thalamus, hypothalamus, and epithalamus
 Definition
diencephalon
Term
the cerebrospinal fluid is derived from the blood
 Definition
true
Term
the fourth ventricle of the brain lies adjacted to the
 Definition
PONS
Term
the ______ neurons are most abundant in the body and are the major type of the CNS
 Definition
multipolar
Term
which of these effectors is not directly controlled by the automatic nervous system
 Definition
skeletal muscle
Term
control of temperature, endocrine activity and thirst are functions associated with the
 Definition
hypothalamus
Term
the brainstem consists of the
 Definition
midbrain, medulla, pons
Term
the diencephalon of the adult brain is formed from a primary brain vesicle called the
 Definition
forebrain
Term
the central canal is associated with the
 Definition
spinal cord
Term
the summation of the synaptic potentials from more than one presynaptic neuron is called
 Definition
spatial summation
Term
the _____ conducts impulses toward the cell body
 Definition
dendrites
Term
the strengths of sensory stimuli or summated synaptic potentials is often encoded as
 Definition
the frequency of production of action potentials
Term
which of the following cell types is responsible for secreting cerbrial spinal fluid
 Definition
ependymal
Term
the arbor vitae refers to
 Definition
cerebellar white matter
Term
the layer of meninges that serves as the inner periosteum of the cranial bone is
 Definition
dura matter
Term
the ____ acts to compare motor output from motor cortex with the motion performed and make adjustments as necessary
 Definition
cerebellum
Term
pyramids are found in the
 Definition
medulla
Term
the part of the brain that can directly influence or inhibit the release of hormones from the pituitary is the
 Definition
hypothalamus
Term
the brain area includes control of sleep/wake cycles and onset of puberty
 Definition
epithalamus
Term
the berebrospinal fluid is returned to the blood in the venus sinuses by way of projections is called
 Definition
arachoid villi
Term
the primary visual cortex is located in the
 Definition
occipital lobe
Term
which of the following would you NOT find in normal cerebrospinal fluid
 Definition
red blood cells
Term
the central sulcus separates which lobes
 Definition
frontal and parietal
Term
the function of commissures is to connect
 Definition
correspondonding areas of the two hemispheres
Term
which of the following is not involved with motor activity (either initiation or coordination)
 Definition
Wernicke's area
Term
nuclei of cranial nerves V-VII are found in the
 Definition
pons
Term
bipolar cells are commonly
 Definition
found in the retina of the eye
Term
a second nerve impulse cannot be generated until
 Definition
the membrane potential has be re-established
Term
which is not a structural feature of a neuron
 Definition
synaptic cleft
Term
A neuron which has its primary function the job of integration is called
 Definition
an association neuron
Term
collections of nerve cell bodies inside the central nervous system are called
 Definition
nuclei
Term
parkinsons disease results from a degeneration of the _____ leading to an underproduction of ____ resulting in ____ tremors.
 Definition
substantia nigra, dopamine, resting
Term
an area of the brain in which the blood brain barrier is disrupted would be the
 Definition
hypothalamus
Term
the ventricular structures responsible for production of cerebral spinal fluid are the
 Definition
choroid plexes
Term
cranial nerve I carries _____ information
 Definition
sensory
Term

loss of ability to perform skilled motor activities such as piano playing, with no paralysis or weakness in specific muscles, might suggest damage to the:

 

 Definition
premotor cortex
Term
the ______ is a major relay station for sensory information ascending to primary sensory areas of the cerebral cortex
 Definition
thalamus
Term
the motor control of the left side of the body by the left side of the brain is termed
 Definition
ipsilateral
Term
the ridges of the cerebral hemispheres are termed
 Definition
gyri
Term
the brain stem is made up of
 Definition
medulla oblongata, pons, midbrain
Term
association neurons are
 Definition
mostly multipolar neurons
Term
the somatic nervous system is responsible for
 Definition
voluntary motor output
Term
a nerve is a bundle of ____ in the _____
 Definition
neuron processes, PNS
Term
the ______ neurons are the most abundant in the body and are the major type of the CNS
 Definition
multipolar
Term
if a motor neuron in the body were stimulated by, an electrode placed about midpoint along the length of the axon
 Definition
muscle contraction would occur and the impulse would spread bidirectionally
Term
the nodes of Ranvier
 Definition
are gap in the myelin sheath
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