The vague is a mixed nerve containing both sensory and motor fibers. (A) True (B
ID: 170060 • Letter: T
Question
The vague is a mixed nerve containing both sensory and motor fibers. (A) True (B) False During emergency situations, activation of the sympathetic nervous system will stimulate the circular muscle of the eye and the pupil will constrict. (A) True (B) False Most visceral organs receive dual innervation from the ANS (A) True (B) False Postganglionic sympathetic fibers are myelinated and thus, called white rami communicantes, while preganglionic sympathetic fibers are unmyelinated and therefore form the gray rami communicantes. (A) True (B) False The seventh cranial nerve supplies a) taste buds on the posterior third of the tongue b) muscles of the soft palate c) muscles to the lower lip d) the parotid salivary gland Examination of a patient indicates that they have a medially directed strabismus. The could be due to damage to cranial nerve number: a) III b) IV c) ophthalmic branch of V d) VI A patient is viciously stabbed in the neck. You suspect damage to the accessory You would test nerve function by asking the patient to: a) Extend their neck against resistance b) Extend their neck without impairment c) Lift their shoulders against resistance d) Lift their shoulders without impairment A tumor is damaging the patient's glossopharyngeal nerve. They will experience a) Loss of taste over the anterior 2/3 of the tongue b) Loss of somatosensory over the anterior 2/3 of the tongue c) Loss of taste and somatosensory over the posterior 1/3 of the tongue d) paralysis of the muscles of the tongue During vigorous activity, which of the following actions would be decreased: a) the release of glucose in the blood stream b) the digestion of food c) the respiration rate d) the flow of blood to cardiac muscle The rami communicantes are designated white or gray depending on whether are: a) in the thoracic or lumbar region b) from the white or gray matter of the CNS c) myelinated or unmyelinatedExplanation / Answer
The vagus is a mixed nerve containing both sensory and motor fibers- True
During emergency condition, the activation of the sympathetic nervous system will stimulate the circular muscle of the eye and pupil will constrict- True
Most visceral organs receive dual innervention- True.
postganglionicsympathetic fibers are myelinated- False
the seventh cranial nerve supplies the taste buds on the posterior third of the tongue.
Damage in the cranial nerve number VI
Lift their shoulders against resistance
loss of taste and somatosensory over posterior 1/3 of the tongue.
decreases the respiration rate.
whether they are myelinated or unmyelinated.
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