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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. 

Two arteries arise after passing behind the knee, and one gives rise to a third artery. The [A]  travels along the frontside of the shin in the leg. The [B] travels along the back side of the leg and the [C] splits off from it on the lateral side of the leg.   See the image below for reference. The left image is the anterior view and the right image is the posterior view.