The study of cells is known as what? List one tenant of cell theory.

Cardiac and smooth muscle have all of the following characteristics in common except:

In a(n) ____________ contraction, the amount of tension produced does not change, but the muscle changes in length, becoming shorter.  

Where in the body is smooth muscle located?

Electrical signals cannot “leap” across the synaptic cleft. Thus, neurons rely upon chemical messengers in order to perpetuate the action potential or interact with the effector cell. These are known as:

The ion channels which bind ACh at the neuromuscular junction are examples of:

Why is calcium required for contractions to occur? To which structure in the muscle fiber does calcium bind (be specific)?

_____________ produce watery secretions that are secreted directly onto the surface of the epidermis, and play a role in thermoregulation.

A ganglion is a cluster of which structures lying outside of the central nervous system?

The hypodermis is primarily composed of what type of tissue?