Myasthenia gravis is an autoimmune neuromuscular disease that causes muscle weakness by preventing which of the following neurotransmitters from binding to its receptor at the neuromuscular junction?

Valium has an effect on the neurotransmitter GABA. When the neurotransmitter GABA binds to its receptor, the effect is a decrease in anxiety. The medication Valium works to decrease anxiety. Which of the following would explain how GABA has its effect?

A patient develops progressive muscle weakness, muscle atrophy, and difficulty speaking and swallowing. Examination reveals both upper and lower motor neuron abnormalities, while sensation remains intact. Which disorder is most consistent with the progressive degeneration of motor neurons in the brain and spinal cord?

If a sensory nerve receives a stimulus that slightly makes the membrane potential less negative, but the membrane potential never reaches threshold, what will the person feel?

Answer the question based on the graph. Which of the following is correct regarding ion channels during number 3 in the graph above?

In normal physiological conditions, where is the majority of the potassium in the human body?

What did Dwight (left) ask Darwyn (right)?

What was Darwyn’s response? 

Which provinces were discussed?

Which province was discussed?