Name the epidermal layer numbered 2.  

Name the bone labeled A.  

Name number 4.  

Name an organ found in the abdominal cavity. Write your answer in the comment box.

What specific substances were removed when the bone was heated? How did this change the bone?  Write your answer in the comment box.

Which type of rib is this?  

Name the structure labeled A (not the bone).  

Name the bone and structure labeled A.  

Name the bone and classify it.  

Name the structure labeled A.