Second-order neurons from the medial lemniscus and spinothalamic tracts synapse with third-order neurons in the thalamus.
Answer the following statement true (T) or false (F)
True
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The key difference between active and passive processes is that active processes require energy.
a. true b. false
Certain diseases, such as Parkinson's disease, will weaken the swallowing reflex and decrease the muscularis externa activity in the esophagus. What is one type of complication that can result?
a) Patients with Parkinson's disease may have trouble creating a bolus and pushing it posteriorly toward the oropharynx. b) Patients with Parkinson's disease may aspirate their food because the swallowing reflex may not properly trigger the elevation of the larynx. c) Patients with Parkinson's disease may have their food enter the stomach too quickly because the muscularis externa will increase peristalsis. d) Patients with Parkinson's disease will vomit more often due to the muscularis externa activity being decreased.
Estrogen has the following cardiovascular effect in women:
A. increases LDL levels B. increases adrenergic receptors in heart C. stimulates red blood cell production D. increases nitric oxide production in blood vessels E. increases peripheral vascular resistance
What is a generator potential?
A) A generator potential is an action potential produced by sensory neurons. B) A generator potential is the depolarization of sensory neurons capable of generating an action potential. C) A generator potential is the repolarization of sensory neurons capable of generating ac action potential. D) A generator potential is an electrical stimulus that propagates from the sensory neuron to the CNS. E) A generator potential is a very strong stimulus in a sensory receptor that causes the inside of the cell to become positive.