Where is the anterior (ventral) root of a spinal nerve?
C
Which of the following statements is incorrect ?
The anterior gray horn, posterior gray horn and lateral gray horns contain myelinated fibers.
The anterior and posterior gray horns divide the white matter into columns.
The white matter of the spinal cord contains tracts.
Sensory tracts carry information to the brain.
Motor tracts carry information away from the brain.
The anterior gray horn, posterior gray horn and lateral gray horns contain myelinated fibers.
Which of the following brain structures consists of the medulla oblongata, pons and midbrain?
Diencephalon
Dura mater
Brain stem
Cerebrum
Cerebellum
Brain stem
The term 'decussation' means:
to split in half
control of movement
a form of sensory input
crossing
swallowing
crossing
If a person has damage to the visual association area, he/she will
not be able to see
see, but be unable to understand what he/she is viewing
not be able to remember visual experiences from the past, like the color of his/her first car
see, but be unable to understand what he/she is viewing
Diffusion, enzymatic degradation, and uptake by cells are all ways to
excite a presynaptic potential
remove a neurotransmitter
stop a spatial summation
continue a temporal summation
inhibit a presynaptic potential
remove a neurotransmitter
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EPSPs are caused by a hyperpolarization of the post-synaptic membrane.
True
False
False
The process in which the frequency of nerve impulses in the first-order neuron decreases during prolonged stimulus is called
modality.
adaptation.
perception.
selectivity.
transduction.
adaptation
The postcentral gyri of the parietal lobes of the cerebral cortex
provide the ability to move the eyeballs.
receive visual information.
control voluntary body movements.
receive body sensory information.
are considered the primary gustatory area.
receive body sensory information.
The process of sensation begins in a _____, which can be either a primary sensory neuron or a separate cell.
effector cell.
signal transducer cell.
association neuron.
sensory receptor cell.
secondary sensory neuron.
sensory receptor cell.
Third order neurons conduct impulses from the thalamus to the somatosensory area of the cerebrum or to the cerebellum.
True
False
True
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Vibration and fine touch sensory impulses are carried by the anterolateral spinothalamic pathway.
True
False
False
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Unconscious proprioception sensory impulses are carried by the
Posterior column-medial lemniscus pathway
Anterolateral spinothalamic pathway
Spinocerebellar pathway
All of these
Spinocerebellar pathway