Pregunta 1
Pregunta
Sympathetic nervous system has cranial and sacral parts.
Pregunta 2
Pregunta
Parasympathetic nervous system has long preganglionic and short postganglionic fibers.
Pregunta 3
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Hippocampus is a three-layered allocortex
Pregunta 4
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Amygdaloid body is concerned with emotion control.
Pregunta 5
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Adrenal medulla cells are derived from modified postganglionic sympathetic neurons
Pregunta 6
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Both preganglionic and postganglionic fibers of the sympathetic nervous system are myelinated.
Pregunta 7
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The pupil is small if the stellate ganglion is removed from the neck of the first rib.
Pregunta 8
Pregunta
The rami communicantes are associated only with the sympathetic division of the ANS
Pregunta 9
Pregunta
The adrenal medulla is considered a “misplaced” sympathetic ganglion by some
Pregunta 10
Pregunta
Which of the following is true in respect to the ciliary ganglion?
Respuesta
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Sympathetic fibers synapse in the ciliary ganglion.
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Afferent fibers from the iris and cornea pass through the ganglion
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The ganglion is located between the optic nerve and medial rectus
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Parasympathetic fibers in the ganglion are derived from CN VII
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Parasympathetic fibers in the ganglion are distributed to the retina and lens
Pregunta 11
Pregunta
Which of the nerves below provides parasympathetic supply of glandula parotidea:
Respuesta
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n. petrosus profundus
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n. glossopharyngeus
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n. trigeminus
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n. facialis
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n. vagus
Pregunta 12
Pregunta
The sacral outflow of the parasympathetic (craniosacral) system enters the pelvic Plexus via:
Respuesta
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hypogastric nerves
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pelvic splanchnic nerves
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pudendal nerves
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sacral splanchnic nerves
Pregunta 13
Pregunta
Preganglionic parasympathetic nerve fibers within the pelvic (inferior hypogastric) plexus arise from S2, 3, 4 and enter the plexus via:
Pregunta 14
Pregunta
Choose the statement that does not accurately reflect the differences between the somatic and autonomic motor systems.
Respuesta
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Somatic nerve fibers are fast-conducting; autonomic fibers are slow-conducting.
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Somatic leads to heart muscle; autonomic leads to skeletal muscle.
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Somatic impulses are excitatory only; autonomic impulses are excitatory or inhibitory.
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Somatic receptors have a specialized motor end plate; autonomic receptors do not.
Pregunta 15
Pregunta
Which is the true statement regarding the sympathetic nervous system?
Respuesta
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Both preganglionic and postganglionic fibers are myelinated.
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Preganglionic neurons exit the spinal cord in the cervical and sacral regions.
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Adrenal medulla cells are derived from modified postganglionic sympathetic neurons.
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The sympathetic nervous system is rarely activated as a unit.
Pregunta 16
Pregunta
Regarding the parasympathetic division of the autonomic nervous system:
Respuesta
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parasympathetic preganglionic fibers are found in all cranial nerves
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parasympathetic vasoconstrictor fibers are present in the salivary glands
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paraympathetic postganglionic neurons are found in spinal ganglia from T1 to L2
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parasympathetic postganglionic fibers secrete acetylcholine onto their target organs
Pregunta 17
Pregunta
Regarding the role of the autonomic innervation:
Respuesta
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Stimulation of the the sympathetic nerves to the eyes causes pupillary constriction
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Activation of the sympathetic system causes vasodilatation in the skin
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Activation of the sympathetic system causes vasoconstriction in the viscera and vasodilatation in the skeletal muscle
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Stimulation of the vagus nerves speed up the heart
Pregunta 18
Pregunta
The rami communicantes are designated white or gray depending on whether they are
Respuesta
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from the sympathetic or parasympathetic system
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in the thoracic or lumbar region
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myelinated or not
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from the white or gray matter of the central nervous system
Pregunta 19
Pregunta
Parasympathetic nerves in the thorax
Respuesta
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cause contraction of the muscle in the lung
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supply sensory fibres to the lung
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are secretormotor to the oesophagus.
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cause the longitudinal muscle of the oesophagus to relax.
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supply sensory fibres to the pericardium.
Pregunta 20
Pregunta
Which of the cranial nerve nuclei listed below are visceromotor (parasympathetic)?
Pregunta 21
Pregunta
Postganglionic sympathetic neurons
Respuesta
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release neurotransmtter acetylcholine
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have non-myelinated axons
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send short fibers to the target organs
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have slow-conducting fibers
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supply skeletal muscles
Pregunta 22
Pregunta
Regarding the sympathetic division of the autonomic nervous system
Respuesta
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acetylcholine is secreted by some sympathetic postganglionic fibers.
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most sympathetic preganglionic fibers secrete norepinephrine (noradrenaline).
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sympathetic postganglionic neurons are found in spinal segments from T1 to L2.
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the sympathetic chain extends from the thoracic to the sacral regions of the spinal cord.
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sympathetic preganglionic neurons are found in spinal lateral horns.
Pregunta 23
Pregunta
Regarding the parasympathetic division of the autonomic nervous system
Respuesta
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parasympathetic preganglionic fibers are found in all cranial nerves.
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parasympathetic postganglionic neurons are found in spinal ganglia from T1 to L2.
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parasympathetic postganglionic fibers secrete acetylcholine onto their target organs.
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parasympathetic preganglionic neurons are found in sacral segments.
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parasympathetic ganglia are close to the organs.
Pregunta 24
Pregunta
The pelvic splanchnic nerves primarily carry [blank_start]preganglionic parasympathetics[blank_end] to the [blank_start]inferior hypogastric[blank_end] plexus.