I am doing some research work on anatomy of human body, for which I want to use this project: http://dbarchive.biosciencedbc.jp/en/bodyparts3d/download.html
This project is a 3D Model of human anatomy, containing hundreds of .obj files. Each .obj file is actually a model of a part of human body. I want to import all the .obj files in such a way that the overall anatomy of the figure is intact, i.e. all the structures are in their right place (so that I don't have to manually correct their position).
Edit:
Thanks @poor and @zeffii for your input. After a couple of hours of head-banging, everything seems to work now. Here is what I did:
- Used the script given in the post mentioned by @poor.
- Modified the directory structure given in the script (which is for windows) to work with linux.
- Imported the
.objfiles using the script

The script now looks like this:
#Script to import multiple .obj files into blender
import os
import bpy
# put the location to the folder where the objs are located here in this fashion
path_to_obj_dir = '/home/user/Desktop/brainstem/'
# get list of all files in directory
file_list = sorted(os.listdir(path_to_obj_dir))
# get a list of files ending in 'obj'
obj_list = [item for item in file_list if item.endswith('.obj')]
# loop through the strings in obj_list and add the files to the scene
for item in obj_list:
path_to_file = os.path.join(path_to_obj_dir, item)
bpy.ops.import_scene.obj(filepath = path_to_file)
Note:
There is something specific to this Human Anatomy project (link given above) that I want to share (hoping that it might help someone).
As mentioned by @zeffii, this project is huge. If yout try to import all the files at once, your system may crash.
The project contains some reference files, which have information about the file names and anatomical structures covered in them. This is very useful information because in this way you can divide the whole project into regions/systems and work with one region/system at a particular time.
The image given above is of "Brain Stem" which is made up of 11 .obj files.

Edit # 2:
@poor has written an add-on for blender in order to import multiple .obj files simultaneously in a more user friendly way. I am now using this addon and it works flawlessly.
Here is the link: How to batch import Wavefront OBJ files?
How to add this Addon:
Step # 1:
First of all copy the code of the plugin and create a file named io_import_multiple_objs.py

Step # 2:
In blender, goto "User Preferences" > "Addons" > "Install from file" and select the "io_import_multiple_objs.py" file you created in step # 1.

Step # 3:
Enable the addon

Now you can batch-import multiple .obj files. :D

Thanks @poor for this great addon :D