you exhale (:
what do rib muscels contract do
The internal intercostal muscles relax and the external intercostal muscles contract, pulling the ribcage upwards and outwards.
The rib cage is made of bones with intercostal muscles allowing them to expand and contract when breathing
Increases
When you breathe, the actions of your rib muscles and diaphragm expand or contract your chest. As a result, air flows in and out.
Not exactly. Your intercostal muscles are the muscles that contract and they're found inbetween in each rib in the rib cage. When this contracts, as well as the diapragm, the lungs will have less air pressure inside them, making you breathe in. Hope this helped? :)
The space in your chest cavity increases.
They contract
Muscles contract and relax to move a joint. ... Muscles contract at a constant rate. Muscles contract and relax to move a joint.
If the papillary muscles fail to contract the valves will prolapse. The papillary muscles are located in the ventricles and contract to prevent prolapse.
The rib cage is made of bone with intercostal muscles allowing them to expand and contract when breathing.
Im not expert, but isn't it the diaphragm and rib muscles, the muscles between the ribs, internal and external intercostals.