Please help STAT with these questions. Will rate, thank you so much! Question 37
ID: 301693 • Letter: P
Question
Please help STAT with these questions. Will rate, thank you so much!Question 37 1.67 pts Botulinum toxin (BTX) is a neurotoxic protein produced by the bacterium Clostridium botulinum. Although it is highly toxic, it's often use for cosmetic purposes. It prevents the release of the neurotransmitter acetylcholine from axon endings at the neuromuscular junction. What happens to the muscle when BTX is applied? O It has a rapid contraction O It will have multiple bursts of contraction O It contracts once and remains contracted O It won't be able to contract at all 1.67 pts Question 38 Impulses are conducted by myelinafed axons by jumping from node to node in a process called an) O action potential. O excitatory postsynaptic potential. O saltatory conduction O monosynaptic reflex depolarization.
Explanation / Answer
Q2.ans-C,saltatory conduction which is the type of condution that ossurs in myelinated fibers and the impulse appears to jump from node to node
Q3.ans-D neurons conducts action potentials normally, but would not transmit these potentials across chemical synapses
Q4.ans-B the opening of voltage gated potassium channels and the closing of sodium channels
Q1.ans-It should be that when applied btx, muscles'deseases treat by over active muscles so it has a rapid constraction