3 Questions
Which structure is responsible for initiating the contraction of skeletal muscle?
Motor end plate
What step during regulated exocytosis is inhibited by Botox?
Fusion step
Where do axon terminals of motor neurons form synapses with muscle fibers?
Neuromuscular junctions
Study Notes
Motor Neuron and Muscle Fiber Interactions
- The neuromuscular junction is the structure responsible for initiating the contraction of skeletal muscle.
- Regulated exocytosis, a step in neurotransmitter release, is inhibited by Botox.
- Axon terminals of motor neurons form synapses with muscle fibers at the neuromuscular junction, enabling transmission of signals from neuron to muscle.
Test your knowledge on neuromuscular junctions and learn about the initiation of skeletal muscle contraction. This quiz will cover topics such as depolarization of the sarcolemma, motor end plates, and the role of motor neurons in activating skeletal muscle fibers. Get ready to flex your neurobiology muscles!
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