What is the potentially deadly food poisoning caused by Clostridium botulinum called?
a. influenza
b. clostridium disease
c. myasthenia gravis
d. botulism
e. Guillain-Barre syndrome
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Question 2) ____________________ are chemical messengers that do not cause the formation of EPSPs or IPSPs but rather bring about long-term changes that depress or enhance the action of the synapse.
Fill in the blank(s) with correct word
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Question 3) Curare blocks the action of ACh at receptor-channels. Therefore, it is considered a(n) ____.
a. antagonist
b. agonist
c. protagonist
d. synergist
e. beta blocker
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Question 4) ____________________ are local chemical messengers that exert an effect only on neighboring cells in the immediate environment.
Fill in the blank(s) with correct word
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Question 5) Botulinum toxin exerts its lethal blow by blocking the release of what chemical compound?
a. calcium
b. serotonin
c. ACh
d. potassium
e. dopamine
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Question 6) Opening a chemically-gated ____________________ channel or ____________________ channel will increase the membrane potential of a plasma membrane.
Fill in the blank(s) with correct word
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Question 7) What is the most harmful result of prolonged depolarization at cholinergic sites?
a. heart attack
b. brain embolism
c. atherosclerosis
d. lung cancer
e. respiratory failure
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Question 8) The neuronal relationship where many presynaptic cells terminate on a single postsynaptic cell is called ____________________.
Fill in the blank(s) with correct word
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Question 9) What chemical agent causes an explosive release of ACh?
a. botulinum toxin
b. curare
c. organophosphates
d. black widow spider venom
e. malathion
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Question 10) The neuronal relationship where a single presynaptic cell branches to terminate on many other cells is called ____________________.
Fill in the blank(s) with correct word
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