- published: 27 Aug 2012
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The rectus abdominis muscle, also known as the "six pack", is a paired muscle running vertically on each side of the anterior wall of the human abdomen (and in some other animals). There are two parallel muscles, separated by a midline band of connective tissue called the linea alba (white line). It extends from the pubic symphysis, pubic crest and pubic tubercle inferiorly to the xiphoid process and costal cartilages of ribs V to VII superiorly.
Superior to the arcuate line, It is contained in the rectus sheath.
The rectus is usually crossed by three fibrous bands linked by the tendinous intersections. While the "six pack" is by far the most common configuration of the muscle bellies of the rectus, there exist rare anatomic variations which result in the appearance of eight ("eight pack"), ten, or asymmetrically arranged segments.[citation needed] All these variations are functionally equivalent.
The rectus abdominis is an important postural muscle. It is responsible for flexing the lumbar spine, as when doing a "crunch". The rib cage is brought up to where the pelvis is when the pelvis is fixed, or the pelvis can be brought towards the rib cage (posterior pelvic tilt) when the rib cage is fixed, such as in a leg-hip raise. The two can also be brought together simultaneously when neither is fixed in space.
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Thirty-five dollars and a six pack to my name
Spent the rest on beer so whos to blame
I know it'll be ok
I get a six pack in me, alright!
They say Im fucked up all the time
What they do is a waste of time
I know it'll be ok
I get a six pack in me, alright!
Senlaboreco che a rekordo alta
Popolo veni, popolo iri, popolo nask al morti
Nask al morti nask al morti
I was born with a bottle in my mouth
Now I got a six so Ill never run out
I know itll be ok
I got a six pack in me alright!
Senlaboreco che a rekordo alta
Popolo veni, popolo iri, popolo nask al morti
Nask al morti nask al morti
Thirty-five dollars and a six pack to my name
Spent the rest on beer so who is to blame