Cholinergic neurons use ____ as the neurotransmitter.  

Which of these stages occur(s) in the cytosol?

Daylight causes stimulation of the pineal gland to release melatonin. 

The number (#) of moles of a given solute dissolved in water to make a 1 liter solution is the definition for ______________.

Electrical synapses are between cells that are physically linked by gap junctions.  

The majority of water within the body is found in the  

Substance P is a NT involved in pain transmission/perception.

Extra Credit: Name one IV solution mentioned in lecture that is iso-osmotic to blood plasma.

Which of the following are natural analgesics (endogenous opioids)?  

The rate of diffusion is influenced by