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The half-life of a hormone is the amount of time it takes for half the hormone to be removed or inactivated.  Which of the following are the major body organs that determine hormone half-life?

Calcium is important in muscle contraction.  Why?

Steroid hormones are made from what?

At a neuromuscular junction what type of receptor is located on the motor end plate of skeletal muscle? 

Which of the following muscles brings your leg towards the midline?  Select all that apply.

Select the two movements that the quadriceps group performs.

Answer the following about the area of the skeleton featured below: Name the bone indicated by A. ___________________________ Name the specific part of bone A indicated by B.  __________________________ Name the bone feature indicated by C.  _________________________________ Are the ribs indicated by D BEST categorized as true, false, or floating? ____________________.

Name the bone feature D _____________________.

Identify the following  Identify bone A ________________________________________. Identify bone B ________________________________________. Identify bone feature indicated by C ________________________________. Identify bone feature indicated by D ________________________________.

Identify the following on the bone below: Name the bone shown in the picture.  ___________________________ Name bone feature indicated by A. ______________________________ Name bone feature indicated by B. ______________________________ Name bone feature indicated by C. ______________________________ Name bone feature indicated by D. ______________________________