Which characteristic is unique to smooth  muscle?

What protein is involved in contraction in skeletal muscle? 

Which stain(s) could be used to label lipids?

Bonus Question – Spelling Counts: High concentrations of Ca2+ and PO4- ions cause formation of ___ crystals, whose growth gradually calcifies the entire matrix.

How would you classify the epithelium in the image?

Identify the cell that is indicated by the pointer:

Is the muscle seen below voluntary or involuntary? 

Which glial cell is found in the PNS and secretes myelin? 

Which of the following statements about an osteon is incorrect?

Identify the light area around the arrow: