Depending on the action, specific muscles act as agonists, antagonists, and synergists. When the action changes, the roles of muscles may change as well.  Complete the sentences describing the various roles of muscles during particular actions.  

Homeostasis of blood calcium levels is performed by the parathyroid and thyroid glands.  What type of feedback loop is utilized to maintain homeostasis?

What type of synovial joint involves two flat (or nearly flat) bone surfaces?

When blood calcium levels drop below normal what cells are activated to degrade bone matrix and release calcium into the blood?

What are the functions of the skeletal system? Select all that apply

What happens when the epiphyseal plate is ossified?  

The two types of myofilaments are the thin filaments, composed primarily of the protein __________, and the thick filaments, composed of __________.

You performed the following dilution series, using plasma and saline, to determine the concentration of an analyte. Tube 1: 300 uL plasma and 2.2 mL saline. Tube 2: 150 uL of tube 1 and 750 uL saline Tube 3: 100 uL of tube 2 and 900 uL saline a. (1pt) Type the equation (use actual plasma and saline volumes) that you would use to determine the dilution in tube 1. b. (1 pt) Type the equation that you would use to determine the final or cumulative dilution in tube 2. c. (1 pt) Which tube do you expect to have the least concentration (Tube 1, Tube 2, or Tube 3) of any analyte in plasma. d. (2 pts) After running the assay or test, your patient’s analyte concentration in tube 3 is 100 mg/dL.  Would you report this concentration (100 mg/dL)? (yes or no).  Why or why not?    

Which of the following occur  in the intermediate step between glycolysis and the Krebs cycle?  

List the requirements of ATP production:  [a] [b] [c]