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Examine the model then identify the muscle shown. Name muscle A ____________________________ Name muscle B ____________________________ Name muscle C ____________________________

Identify the following on the skeleton below. Name the bone indicated by A. ______________________________________ Name the bone indicated by B.  ______________________________________ Name the bone indicated by C. _______________________________________ Name the bone indicated by D. _______________________________________ Name the bone indicated by E. _______________________________________

This brainstem structure is an autonomic reflex control center controlling heart rate, respiration, blood pressure, and swallowing.

Enzyme that cuts apart acetylcholine, terminating the muscle cell action potential.

You’re standing in line to get into a concert you’ve been dying to see.  A girl wearing stilettos in front of you stumbles and stomps on your big toe (you unfortunately are wearing sandals!).  You feel the pressure of her shoe before you feel the pain.  Your response is to pull your foot out from under her shoe then start yelling. Given that touch travels faster than pain we deduce that touch signals travel on Type A neurons while pain signals travel on Type C neurons.  Describe two structural features that Type A neurons have that give them the ability to send signals more quickly than Type C neurons.

After nervous stimulation of a muscle has stopped, the muscle relaxes because:

Injury to this nerve results in a loss of full hand grasping.  Hand takes on a claw-like appearance.

You ask a patient “What time is it?”  They respond “My mother and I talked on the phone yesterday about how to make jam”.  You suspect this patient has

Define motor unit. 

Preganglionic cell bodies located in the cervical and sacral regions of the spinal cord.