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The nerves labeled in the image above are: A is [A] B is [B] C is [C]

What nerve innervates the shoulder region of the arm?

The diaphragm is a muscle that is innervated by the ____________.

The neck muscles, such as sternocleidomastoid and trapezius, are innervated by _____________.

  D is [D]

What nerve has the somatic motor function of the four extrinsic eye muscles and innervates the muscle that makes the pupil constrict? 

The anterior view is on the left and the posterior view is on the right. D is [D]

The _____________innervates the posterior arm and forearm muscles and skin sensations. 

What is the giant nerve that arises from the sacral plexus?

The [A] is located near the clavicle and collects blood from the arm. It drains into the [B], which also receives blood from the head via the [C] from the outside regions and the [D] from the inside regions of the head.