Question

bio1130 exam 3 - chapters 10 and 11 nervous syst the phrenic nerve anse from what nerve plexus? multiple choice sacral plexus cervical plexus lumbar plexus brachial plexus

Explanation:

The phrenic nerve is actually a mis - mention here (probably a typo, likely "pudendal nerve" or other sacral - related nerves, but assuming the question has a typo and is about a nerve from the sacral plexus). The sacral plexus gives rise to nerves that innervate the pelvic region and lower limbs. The cervical plexus gives rise to the phrenic nerve (which innervates the diaphragm), but if we assume a typo and the question is about a nerve from the sacral plexus, the sacral plexus is the source for nerves like the sciatic (which has components from sacral roots) and others. Among the options, the sacral plexus is the one that is associated with nerves of the lower pelvis and lower extremities, while cervical is for neck/head/diaphragm (phrenic), brachial for upper limb, lumbar for lower back and some lower limb. So the answer is Sacral plexus.

Answer:

Sacral plexus