In a myelinated axon, action potentials are produced
A. only at the axon hillock.
B. only at the axon hillock and at the nodes of Ranvier.
C. along the entire length of the axon membrane.
D. only under segments of myelin.
Answer: B
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The presence of medical illnesses or symptoms of dementia can make the diagnosis of depression difficult in a. middle-aged men
b. menopausal women. c. highly creative individuals. d. the elderly.
The risk of coronary heart disease can be reduced by:
A) lowering LDL serum cholesterol. B) eating fewer fruits, vegetables, and whole grains. C) increasing hypertension. D) eating more saturated fats.
Regarding violence and psychoses, which of the following statements is FALSE?
a. Sensationalized media reports tend to exaggerate the connection between mental illness and violence. b. People who are young, male, poor, and intoxicated are much more prone to violence than the average mental patient. c. People who are actively psychotic and currently experiencing psychotic symptoms are too disturbed to be violent. d. Mentally ill individuals who are substance abusers have an increased risk for violence.
In children and adolescents, BMI-for-age is best used to determine
A. percentage of body fat B. timing of the adiposity rebound C. percentage of lean body mass D. nutritional status E. percentage of body fat AND percentage of lean body mass