click below
click below
Normal Size Small Size show me how
Navarro PTA O.I.A.N
Respiratory System
| Muscle | Origin | Insertion | Action | Nerve |
|---|---|---|---|---|
| Diaphragm | Xyphoid process, ribs, and lumbar vertebrae | central tendon | inspiration | phrenic nerve |
| Internal Intercostals | rib below | rib above | depresses ribs in expiration | intercostal nerve (T2 through T6) |
| External Intercostals | rib above | rib below | elevates ribs in inspiration | intercostal nerve (T2 through T6) |