The trigeminal nerve controls which group of muscles?
A) muscles of the tongue
B) muscles of facial expression
C) muscles of the pharynx
D) muscles of mastication
E) muscles of the eye
D) muscles of mastication
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When a neurotransmitter like GABA is acting in an inhibitory manner which of the following is likely a result of the GABA acting on the post synaptic cell?
A) influx of positively charged ions into the postsynaptic cell B) opening of chemically gated sodium channels C) depolarization of the postsynaptic cell membrane D) hyperpolarization of the postsynaptic cell membrane
Which of the following will increase the heart rate?
A. A decrease in the level of carbon dioxide in the blood B. An increase in the level of carbon dioxide in the blood C. A rise in pH D. An increase in blood pressure E. An increase in the level of blood oxygen
Which of the following damages would cause spastic paralysis?
A. damage of the posterior root B. damage of the ventral gray horn C. transection of the spinal cord D. stroke in the right pre-central gyrus E. both the transection and the stroke in the pre-central gyrus
Which of the following is the most complex structural level of organization?
A) organ level B) cellular level C) chemical level D) tissue level