Intercostal recession is retraction of the chest wall in between the ribs (intercostal spaces), whereas as subcostal recession is in-drawing of the chest wall below the coastal margin i.e. below the ribs.
The main difference between the muscles involved in inspiration and expiration is that inspiration involves the diaphragm and external intercostal muscles, which contract to expand the chest cavity and draw air into the lungs. In contrast, expiration primarily involves the relaxation of these muscles, along with the internal intercostal muscles and abdominal muscles, which contract to compress the chest cavity and push air out of the lungs.
locate collar bone, right below is the first intercostal space then the second rib folows by second intercostal etc.
Intercostal spaces
The external intercostal muscles run between the ribs. They are responsible for elevating the ribs during inhalation. The internal intercostal muscles are situated deeper and help with forced exhalation by depressing the ribs.
The sixth intercostal space can be found between the sixth and seventh ribs on the side of the human body.
intercostal muscle
The intercostal muscles. Intercostal means "between ribs".
Intercostal Muscles
There are 11 pairs of intercostal muscles on each side (22 total muscles). The intercostal muscles lie between the ribs.
It is inter which means in between
The main difference between the muscles involved in inspiration and expiration is that inspiration involves the diaphragm and external intercostal muscles, which contract to expand the chest cavity and draw air into the lungs. In contrast, expiration primarily involves the relaxation of these muscles, along with the internal intercostal muscles and abdominal muscles, which contract to compress the chest cavity and push air out of the lungs.
locate collar bone, right below is the first intercostal space then the second rib folows by second intercostal etc.
Intercostal spaces
The external intercostal muscles run between the ribs. They are responsible for elevating the ribs during inhalation. The internal intercostal muscles are situated deeper and help with forced exhalation by depressing the ribs.
between the second and third ribs
Intercostal. Muscles between your ribs.inferior oblique
Intercostal musles are present between the ribs.