When a section of a neuron is stimulated by neighboring neurons, the cell membrane becomes __________ to sodium ions
a. positive c. polarized
b. permeable d. impermeable
B
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Salvia is a drug that causes uncontrollable laughter and vivid hallucinations. Its effects are due to its chemical similarity to
A. endorphins B. dopamine C. acetylcholine D. epinephrine
NEW: Which disorder is a common sleep movement disorder in which a person has unpleasant sensations in the legs and an irresistible urge to move them to relieve the pain?
a. ?periodic limb movement in sleep b. ?cataplexy c. ?sleep apnea d. ?restless leg syndrome
A Z line is a. a segment of myofibril
b. a type of muscle fiber. c. the boundary of a sarcomere. d. the path of a muscular action potential.
Which of the following is NOT one of the main purposes of family stories?
A) They contain messages about how to treat people. B) They transmit the values of a family. C) They provide information about where the family came from. D) ALL of the above are main purposes of family stories.