Put the following events of the neuromuscular junction in the order in which they occur. 1. Action potential is propagated in the sarcolemma. 2. Acetylcholine binds to ligand gated sodium channels. 3. Action potential arrives at the neuromuscular junction. 4. Vesicles full of acetylcholine are stored at the axon terminal. 5. Acetylcholine is released into the synaptic cleft.
A) 4,3,5,2,1
B) 4,3,5,1,2
C) 4,5,3,2,1
D) 4,3,1,5,2
E) 4,1,3,2,5
Question 2
Put the following events of excitation-contraction coupling in the order in which they occur. 1. Excitation 2. Sarcomere shortening 3. Generation of muscle tension 4. Neural control 5. Contraction cycle begins 6. Release of calcium ions
A) 4,1,5,2,6,3
B) 4,1,6,5,2,3
C) 1,2,5,6,3,4
D) 6,1,4,2,5,3
E) 1,4,6,2,5,3
Localization of neurotransmitter action
Action Potentials
Four cutaneous receptors that occur in human skin.
Normal action of antidiuretic hormone.
Summary view of the light reactions as they occur in the thylakoid
Action Potentials: Stimulus Strength