Potassium ions move across neurons during depolarization.
Indicate whether the statement is true or false.
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Question 2) For many reflexes, only the spinal cord is a necessary participant.
Indicate whether the statement is true or false.
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Question 3) A premature child was born without working reflexes. Which function of reflexes is the child missing?
A) Active, triggering movement B) Collaborative, working together
C) Informative, sharing facts D) Protective, avoiding harm
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Question 4) A taxi driver picked up a fare in a heavy rainstorm. Which reflex was activated when both men unexpectedly heard a loud clap of thunder?
A) Vestibular reflex B) Startle reflex
C) Patellar tendon reflex D) Withdrawal reflex
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Question 5) A pediatrician tapped the knee of a child. She found that the child's patellar tendon reflex was abnormal. Which body areas might have problems?
A) Muscles, nerves or the spinal cord B) Knees, thighs, or hips
C) Tibias, ankles, or feet D) Eyes, ears, or nose
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Question 6) What is the advantage of transmitting information by an electrical synapse?
A) Hormone free B) Chemical free C) Fast recovery D) Less toxicity
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Question 7) A woman suffered from chronic dizzy spells, resulting in difficulty keeping her body vertical. Which reflex was involved?
A) Vestibular reflex B) Patellar tendon reflex
C) Withdrawal reflex D) Startle reflex
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Question 8) A college student had a depressed mood and trouble falling asleep. Which chemical neurotransmitter could cause such problems?
A) Acetylcholine B) Endorphins C) Epinephrine D) Serotonin
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Question 9) A runner crossed the finish line without feeling pain from her blisters or other injuries. Which chemical neurotransmitter was involved?
A) Endorphins B) Serotonin C) Epinephrine D) Acetylcholine
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Question 10) Eating improperly prepared puffer fish can kill a person. Which chemical channels does the fish's toxin block?
A) Potassium B) Sodium C) Epinephrine D) Acetylcholine
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