There should be the standard diagram at the beginning of you texts that shows the relationships of these terms to the various parts of the body.

Here’s what it means:

the distal fragment, the part farthest from the center of the body; i.e. the part closer to the wrist .

Dorsal, along with any of the descriptive terms for relative position can be used at any point along the body, so long as it has relevance. The liver is superior to the large intestine. The spleen is lateral to the pancreas and stomach, etc. The metatarsals are distal to the patella…

Hopefully that helps.

http://www.infovisual.info/03/011_en.html

http://www.infovisual.info/03/012_en.html

On average, an adult human has 206 bones (according to Gray’s Anatomy, but the number can vary slightly from individual to individual), but a baby is born with approximately 270 bones.

http://www.eskeletons.org/

http://www.geocities.com/Athens/Forum/6100/1bones.html

http://en.wikipedia.org/wiki/Human_skeleton

http://www.bio.psu.edu/people/faculty/strauss/anatomy/skel/skeletal.htm

http://www.mnsu.edu/emuseum/biology/humananatomy/skeletal/skeletalsystem.html

Good luck for the future.