(Fun, jungle type vibes)
The thoracic diaphragm, double domed I am
I am the chief muscle of respiration
Did you know I descend during inspiration
The Pericardium protects my heart
And The diaphragm has 3 parts
Sternal , costal and the lumbar
When I breathe its the main reason why
The external intercostals raise ribs up high
Some of the muscles are secondary
Serratus anterior and the pecs have 2 jobs Help respiration and control the spine
Can't forget The scalenes and sternocleidoimastoid,
The rib elevators just think ELS
E IS FOR external intercostals
11 pairs and I'm the most active inspiration
L is for levator costarum
S is for the serratus posterior superior
The rib depressors need to siits down
S is for Serratus posterior I inferior
I internal and I innermost intercostals
T for trans versus thoracics
S for subcostals
Just like external the internal intercostals have 11 pairs and are active expiration
And don't forget I have neurological and vascular structures
The thoracic aorta and sympathetic trunk
And the inferior vena cava too
The diaphragm is the primary pump for venous circulation dude
The lymphatics the structures also include t
Both the parietal and visceral nodes
Up top I open up through thoracic aperture
Call me the superior or thoracic inlet
Down low I'm the inferior or thoracic outlet
You know you can't forget about the ribs
Ribs 1 to 6 pump me forward and up
Ribs 7 to 10 bucket up and to the side
ribs 8 to 12 are caliper moving to the side too
When I breathe in my thoracic space increases cause my diaphragm contracts
When I breath out it's passive so I relax
And the air flows out
So next time you forget the muscles when you breathe
Don't stress don't fret just play this song and sing
