The Pelvis and Perineum are divided by 2 diaphragms
1. pelvic diaphragm made up of levator ani muscles which are attached at perineal body this arrangement is just like diaphragm muscle which has a central tendon like perineal body and inferiorly the pelvic diaphragm is covered by colles facia.
2.the other diaphragm is urogenital diaphragm, its upper layer is formed by parietal pelvic fascia and inferior layer is formed connective tissue perineal membrane, between these two layers is called deep perineal pouch which contain deep transverse perineii muscle which is a skeletal muscle and it acts as sphincter urethrae.
The part of the urethra within the urogenital diaphragm is called the membranous urethra. It is a short segment of the urethra that passes through the urogenital diaphragm, which is a sheet of muscle and connective tissue located between the pelvic cavity and perineum.
The upper layer of the perineum is called the urogenital diaphragm. It is a muscular layer that separates the pelvic cavity from the perineum and contains important structures such as the external urethral sphincter and the deep transverse perineal muscles.
The urogenital triangle is made up of the Sphincter urethrae and the deep transverse perineal muscles.
The levator ani and coccygeus muscles form the pelvic diaphragm, which provides support for the pelvic organs and helps with maintaining continence.
During a period of relaxed and average respiration, the muscles associated with inspiration, or the process of inhaling, include the muscles of the diaphragm, the external intercostal muscles, and the interchondral region of the internal intercostal muscles.
Levator ani and coccygeus muscles together form the pelvic diaphragm, which provides support to the pelvic organs and helps maintain continence. It plays a key role in pelvic floor function and stability.
diaphragm
intercostals
Yes, exhalation occurs when the diaphragm and muscles of the rib cage relax.
The Phrenic Nerve-Diaphragm and the External Intercostal Nerve-External intercostal muscles
The intercostal muscles. Intercostal means "between ribs".
The diaphragm, a muscle below the lungs, contracts to pull air into the lungs. In order to forcefully exhale, both the abdominal muscles and the internal intercostal muscles can be contracted to compress the lungs.