If you had a cell with no Mg2+ or Ca2+ pumps, but there were leak channels for both of these ions, which would be true:  

fill in the blank here – i have to give possible answers

When electrical impulses reach the synaptic terminal at the very end of an axon, Ca2+ channels on the cell membrane of the synaptic terminal open, and Ca2+ moves though them to enter the cell.  Explain on which side of the membrane Ca2+ is higher, and how you have determined this.  

Which is the best definition of membrane potential?

Match the cranial nerve name with its Roman numeral:

What is the name of the electrical signal that occurs at A:

Question here, answer below

Following an accident, Gabby has no sensation in her legs or her arms/hands.  Based on your understanding of dermatomes, what area of Gabby’s spinal cord is injured?

Ricardo is walking barefoot through his garage and steps on a nail with his left foot.  His left foot quickly pulls away while his right leg straightens to steady his balance.  Which statement is true?

The organ pictured below is responsible for _____________________.  The structure at “A” is the ____________________.