True or false: Experts argue adding a “call to action” to the end of your social media post will predominately create a negative reaction.

You are evoking muscle twitches by stimulation in your physiology lab. You begin to see muscle contractions and successfully are able to evoke a twitch with each stimulation. Next, you increase the stimulation frequency to a more moderate level (3-5 Hz) and you now begin to see  occurring in your recording. Seeing this means that .

A nerve conduction velocity (NCV) study is performed by researchers studying Charcot-Marie-Tooth syndrome in mice. Below are the results from one animal. The short distance measured for the study is 34 mm and the long distance is 67 mm. The average conduction time for the short distance was 0.5 ms and the average long distance conduction time was 1.2 ms. What is the nerve conduction velocity (NCV) for this data?

An experiment was conducted to determine whether a particular drug changes a person’s blood pressure. The scientists compare blood pressure across two groups of people: one group in which the participants take the drug and a control group in which the participants do not take the drug. When they compare these two groups using statistics, they should use statistics appropriate for , and if they get a p value of 0.049 they will           

Consider the following tibial nerve conduction velocity (NCV) test results below. A unique feature of distal limb motor neurons is that the axons taper abruptly in the lower extremities. What is the best explanation for why these average NCVs are decreasing with increasing height? Height (in) Mean NCV (m/s) < 5’3” 51 5’3” – 5’7” 49 > 5’7” 47  

A patient was brought into the University Hospital Emergency Department due to an accident. When the patient has an MRI scan there are abnormal findings in the frontal lobe. The patient is experiencing confusion, slurred speech, and problems trying to make voluntary muscle movements. Complete the pathway to understand why this accident is affecting motor function. Damage in the interferes with signals to the that innervate the and ultimately the , affecting voluntary muscle responses.

You have just discovered an unusual new species that has neurons with a resting membrane potential of +50 mV! It seems to accomplish this with only Na+/K+ pumps, Na+ Leak channels and K+ Leak channels in the cell membrane. The ion concentrations inside and outside of the cell are at typical values for a mammalian neuron. Which of these could explain the positive resting membrane potential? 

Ions flowing across a neuronal membrane always reach equilibrium at a point where the concentration of that ion is equal on both sides of the membrane. 

A 46 year old patient has a deciduous mandibular left canine. Her dentition is would be classified as ______________ dentition.

Permanent mandibular first molars typically erupt before permanent central incisors.