Most people use the images in Word. However, these are limited and all too familiar. If you really want to produce something special, then I suggest buying one of the many clip art collections. They are low cost and they offer thousands of images.
Don't worry about copyrights and using the images. The software company is concerned with those who put them on websites, not those using the images for a company newsletter or something similar. Images in a copyrighted collection should not be distributed freely as through download.
A few years ago I bought the ClickArt 125,000 collection by Broderbund for $48 at CompUSA. Upon regstration I was sent a disk and book with an additional 10,000 images, if I remember correctly. The current collection has grown to 250,000 images, and costs only $30 to order it online. The collection I bought came with several CDs and 2 large visual color catalogs of the images. You must have a printed catalog when using a large image bank. Trying to view images one at a time is impractical.
I checked my Borderbund image catalogs. They have every image you listed except for the adult diaper. That will be difficult to find. Here is the link to the company website, which also has some free medical images: