Body Works


How the Human Body Works


Since muscle groups are interconnected, a multi-level work-out is assured


every time we stretch. For example, when we stretch triceps, we strengthen


biceps; in releasing spinal extensors, we compact spinal flexors; and so on.

Chest opening postures enhance lung power by opening up the airways.


Postures involving back bends contract and tone spinal extensors in the


back of spine. They also open up pectorals, intercostals, and diaphragm


(which functions like an organ, but looks like a muscle).

Forward fold contract and strengthen spinal flexors in front of the spine.


Upper body compacting helps stretch trapezius and latissimus, while side


twists stretch psoas and tone the obliques as they help re-align the spine.


Abdominal massages enhance digestion, regulate bowel movement, and


maintain healthy functioning of regional glands and organs.

Upward arm stretches loosen rotator cuffs and strengthen the deltoids.


Backward arm stretches loosen biceps and tone the triceps. Forward leg


stretches mobilize the hip extensor, strengthen quadriceps, and stretch


hamstrings and calves; pelvic stretches release adductor muscles (inner


thigh), and strengthen the abductors outside the upper thigh.

Glands, Organs, and their Functions:


adrenal - controls water, mineral, glucose levels


brain - controls all other bodily functions


diaphragm - muscular organ dividing upper / lower regions


gall bladder - stores bile to break down the food


heart - purifies blood & pumps back to body


islet of Langerhans - its insulin level controls blood sugar


kidneys - renal organs that filter waste water


large intestine - retains fecal matter for waste removal


liver - its bile is stored in the gall bladder


lungs - respiratory organs directing air flow


pancreas - its juices aid digestion of food


para-thyroid - controls calcium / phosphorus


pineal - monitors sleep patterns/ of the mind


pituitary - its hormones control body growth


small intestine - absorbs nutrients / minerals for distribution


spleen - regenerates / stores / filters blood


stomach - churns food ingested through mouth


thymus - its hormones build immune system


thyroid - controls metabolism with thyroxine


urinary bladder - releases waste water from body               


Muscle Groups/ Locations:



1. abdominal (abs) - front of waist

2. abductors - outer thigh


3. adductors - inner thigh


4. biceps - front of upper arm


5. cervix - back of neck


6. diaphragm - divides upper/ lower body


7. deltoids - shoulders


8. gastrocnemius - upper calf


9. gluteals (glutes) - buttocks


10. hamstrings - back of thighs


11. iliopsoas (psoas) - hip flexors


12. intercostals - muscles between ribs


13. latissimus (latts) - mid to lower back


14. obliques - sides of waist


15. pectorals (pects) - upper chest


16. plantars - arches/ soles of feet


17. popliteals - back of knees


18. quadriceps (quads) - front of thighs


19. sacrum - base of spine


20. soleus - lower calf


21. spinal extensors - back of spine


22. spinal flexors - front of spine


23. trapezius - back of shoulders


24. triceps - back of upper arms

Note - Professional guidance is recommended for beginners.  Contents on site are copyright protected since 2004.

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