Do the phrenic nerves arise from the cervical plexuses, the brachial plexus, the lumbar plexuses, or the sacral plexuses?

Answer 1

Cervical Plexus.

Diagram of the cervical plexus :

Here we can see, the Phrenic nerve arises from the cervical plexus.

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Answer 2

The phrenic nerves arise from the cervical plexuses.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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