What is associated with: a small part of its 4000 mile link is seen here?

Based on the clue 'a small oriental orange or a division of chinese c...', what is the answer? What is referred to by 'a small ornamental mat'? Based on the clue 'a small oval gland at the base of the brain', what is the answer? Based on the clue 'a small parcel containing a stringed tennis tool', what is the answer? Based on the clue 'a small part of this california mountain range ext...', what is the answer? Based on the clue 'a small person who goes up against a bigger oppone...', what is the answer? Based on the clue 'a small piano about 5 feet long', what is the answer? Based on the clue 'a small piece of a tree as a verb it means to unde...', what is the answer?