The 2 GB size is the most popular, but you can also find SD cards that range from as little as 1 MB up to 64 GB. 4 GB is the argest amount of space you will find on a regular SD card. Our SDXC card is one of the more advanced SD memry cards, possessing 64 GB.D memory card. Purchase an SD memory card to store photos, videos and other types of media files.
Muscles of the Upper Torso. The short answer to the question, what muscles do push ups work is that they work the muscles of your upper torso. This is a simplification however. Muscles of the upper back (latissimus dorsi, rhomboids and trapezius).
Here is a graphic of the muscles used in push ups. Compare it with the following about bench press. Both will give you a bigger chest and some more arm and shoulder size. Push ups work the stomach more. I've been working out in the gym for more than 40 years. My advice to anyone who will listen is to do a lot of push ups. Yes, I know the bench will get you stronger than push ups, but it is push ups that will allow you to bench when you get my age.