There are actually 8 diaphragms in the human body:
Tentorum cerebelli
Pituitary diaphragm (covering the pituitary at the level of the stalk)
Occipital bone on the Atlas
Thoracic inlet
Thoracoabdominal diaphragm
Pelvic diaphragm
Popliteal fossa
and the arch of the foot
PELVIC DIAPHRAGM
muscular part of the pelvic floor, consists of the muscles levator ani and coccygeus. separates pelvic cavity from perineum. levator ani reinforces the external anal sphincter, and in women functions as a vaginal sphincter. it is these muscles we are strengthening when doing pelvic floor exercises. the pelvic diaphragm supports the pelvic viscera (ie. the bladder), as well as providing an attachment for the perineum (external genitals). these muscles originate across the wall of the pelvis (from posterior aspect of pubic bone to ischial spine) and insert either into one another at the midline, or into the sacrum/coccyx/anococcygeal ligament.
THORACIC DIAPHRAGM
thin muscular structure that separates the thoracic cavity from the abdominal cavity (in other words separates lungs, heart etc. from stomach, intestines etc.) this muscle is just known as the diaphragm. it attaches to the sternum at the front (specifically xiphisternum), some of the ribs, and vertebrae of the lumbar spine. it is shaped like a dome, and has a central tendon at its top/middle into which it inserts from all angles. the role of this muscle is in breathing, as when it contracts it allows the lungs to expand and fill with air, and as it relaxes again the air is pushed out of the lungs. the aorta, inferior vena cava and the oesophagus are the 3 major structures which pierce the diaphragm in order to pass between abdominal and thoracic cavities.
I believe there are three diaphragms in the human body.
there are 25 elements in the human body.
There are 212 bones in the human body.
There are about 50-75 trillion cells in the human body.
There are approximately 640 muscles in the human body.
there are 90 vestigial organs in human body
there are 600 muscles in the human body and there are,206 bones in the body
we have 900 cuticles on the human body
there are 10 plangies on the human body
There are two kidneys in human body. I
There is one epiglottis in the human body.
The human body has one liver.
there are 25 elements in the human body.
the human body has 230 movable joints in the body.
123 in the front of human body
there are close to 640 muscles in the human body
There are 212 bones in the human body.
its because the human body is awkward ;)