Question

50
the phrenic nerve arise from what nerve plexus?
multiple choice
cervical plexus
brachial plexus
sacral plexus
lumbar 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 C3 - C5 spinal nerves, which are part of the cervical plexus. The brachial plexus (supplies the upper limb), sacral plexus (supplies the lower limb and pelvic region), and lumbar plexus (supplies the anterior and lateral abdominal wall, external genitals, and part of the lower limb) do not give rise to the phrenic nerve.

Answer:

Cervical plexus