The phrenic nerve is a nerve essential for our survival which arises from nerve roots C3, C4 and C5.
32.
Thus, the phrenic nerve receives innervation from parts of both the cervical plexus and the brachial plexus of nerves.
33.
In the cat, horse, ox, and small ruminant the phrenic nerve arises variably from C4-C7.
34.
This is believed to be because this is a referred site of pain for the diaphragm via the phrenic nerve.
35.
This is because the supraclavicular nerves have the same cervical nerves origin as the phrenic nerve, C3 and C4.
36.
To confirm the identity of the phrenic nerve, gently manipulate it to elicit a dartle ( diaphragmatic startle ) response.
37.
The phrenic nerve arises from the neck ( C3-C5 ) and innervates the diaphragm, which is much lower.
38.
Phrenic nerve stimulation is a technique whereby a nerve stimulator provides electrical stimulation of the phrenic nerve to cause diaphragmatic contraction.
39.
Phrenic nerve stimulation is a technique whereby a nerve stimulator provides electrical stimulation of the phrenic nerve to cause diaphragmatic contraction.
40.
Harvard researchers Sarnoff et al . revisited diaphragm pacing via the phrenic nerve in 1948, publishing their experimental results on dogs.
