Groove of the humerus
It targets the traps (your back muscles) biceps are used also *Correction... Actually, it targets your Latissimus dorsi. Hense the name "Lat pull down"... This muscle is lower then your traps.
The Lats are worked in a pull down. Indirectly, shoulders and biceps are also, but not nearly to the same degree.
Your lats.... Laterous dorsi for scientific name though don't quote me on spelling.
Edit: Just in case you were wondering Latissimus Dorsi : )
Lat, in lat pull-down, is short for latissimus dorsi a large muscle in the back. This is the primary muscle used when performing Lat pull downs.
Groove of the humerus
lats and biceps.
armz
Go to the gym and use the LAT pulldown.
A lat pulldown is an exercise that is used to strengthen the latissimus dorsi muscle in the back through the use of the shoulders and arms. There are many videos on YouTube that demonstrate this exercise and is difficult to determine when exactly the first video was shown.
shoulder adduction, elbow flexion and scapular downward rotation
The upper-body muscle groups are worked when one does lat pull downs. The muscle groups mainly worked are the ones in your back called latissimus dorsi. They also work other muscle groups like traps.
"Lat" muscles are your upper and lower back muscles.
Lat pulldowns. You would sit in front of the lat pulldown machine, grab the handle over your head, lean back a bit and pull towards your body. go all the way up and all the way in every time.
Lat. dorsi Pec major Subscapularis
No, they stretch different muscles.
Your use youe leg muscles
There are a number of ideas for working out back muscles. Some routines one can try to work these muscles are pull ups, push ups, lower back flies and lat low pulls.
Abdominal muscles, among others.
Because your muscles are contracting and blood is filling the muscles being worked ( thats why your veins bulge when lifting)