Answer: Clavicle
Explanation:
Clavicle can be described as the collar bone which is present in long and horizontal form for making shoulder girdle.It is placed between breast bone and shoulder blade.It has sternal ends and acromial end.
According to other question , a bone that has elongated form and gets narrowed at ends along with large hook near canal of the bigger end.This is suggested to be clavicle .