Question

45 from what nerve plexus does the phrenic nerve arise? multiple choice lumbosacral plexus cervical plexus brachial plexus

Explanation:

The phrenic nerve is a major nerve that supplies the diaphragm. The cervical plexus is a network of nerves formed by the anterior rami of the first four cervical nerves (C1 - C4). The phrenic nerve primarily arises from the cervical plexus (mainly from C3, C4, and C5). The lumbosacral plexus supplies the lower limb and pelvic region. The brachial plexus supplies the upper limb.

Answer:

Cervical plexus.