The rectus abdominis receives the majority of its arterial supply from the superior and inferior epigastric arteries. 

There are three auricularis muscles: the auricular anterior, the auricular superior, and the auricular posterior.  

Ipsilateral rotation of the trunk at the spinal joints is an action of the internal abdominal obliques, not the rectus abdominis. 

The anatomical boundaries of the anterior triangle of the neck are:

Superior: Inferior border of the mandible 

Medial: Midline of the body (in the sagittal plane)

Lateral: Medial border of the sternoclediomastoid (SCM) muscle

Thus, the only correct statement in the answer choices provided is that the lateral border of the anterior triangle of the neck is the medial border of the sternocleidomastoid (SCM) muscle.

The choice, "The superior border of the anterior triangle of the neck is the posterior belly of the digastric muscle," is incorrect because it describes the superior border of the carotid triangle, not the anterior triangle of the neck.

The only true statement provided about the boundaries of the posterior triangle of the neck is "The posterior boundary of the posterior triangle of the neck is the anterior border of the trapezius muscle."

The boundaries of the posterior triangle of the neck are as follows:

Anterior: Posterior border of the sternocleidomastoid (SCM) muscle

Posterior: Anterior border of the trapezius muscle

Inferior: Middle one third of the clavicle bone

The incorrect statements are variations upon the correct anatomy of the posterior triangle of the neck. The pinna of the ear, while superior to the posterior triangle of the neck, is neither a superior boundary nor an anterior boundary of the posterior triangle.

The only statement among the choices provided that is false is: "The subclavian vein is contained within the carotid triangle." This statement is false because the subclavian vein in its entirety runs inferiorly to the boundaries of the carotid triangle.

The boundaries of the carotid triangle are as follows:

Superior: Posterior belly of the digastric muscle

Inferior: Superior belly of the omohyoid muscle

Lateral: Medial border of the sternocleidomastoid muscle

Each of the boundaries were stated correctly within the given answer choices. In addition, the internal jugular vein, is correctly stated as being present in the carotid triangle. Also contained in the carotid triangle are the common carotid artery, the internal jugular vein, the vagus nerve, and the hypoglossal nerve.

The tongue has a complicated innervation and is innervated by five cranial nerves. The innervation can be divided into motor and sensory innervations. In regards to motor innervation the palatoglossus is innervated by cranial nerve (CN) X (vagus nerve), while all other muscles of the tongue are innervated by CN XII (hypoglossal nerve). Sensory innervation is a bit more complicated. CN IX (glossopharyngeal nerve) is responsible for general and special sense (taste) of the posterior one-third of the tongue. CN VII (chorda tympani from the facial nerve) is responsible for special sensory (taste) of the anterior two-thirds of the tongue, while the mandibular branch of CN V (lingual nerve of the mandibular branch of trigeminal nerve) allows for general sensory of the anterior two-thirds of the tongue. 

The transverse fascia is a thin aponeurotic membrane that lies between the transverse abdominal muscle and the parietal peritoneum. Superficial to the transverse abdominal muscle is the internal oblique, with the external oblique superficial to the internal oblique. Sitting on top of the abdominal musculature is a layer of superficial fat followed by skin

Parietal peritoneum, extraperitoneal fat, transversesalis fascia, transversus abdominus, internal oblique, external oblique, superficial fat, skin

(Note: rectus abdominus lies within the aponeurosis of internal oblique).

From superficial to deep, the layers of abdominal wall structures above the arcuate line are in the following order: external oblique muscle, internal oblique muscle, transversus abdominis muscle, transversalis fascia, peritoneum.

Below the arcuate line, the only change is that internal oblique and the transversus abdominis aponeuroses join together and then travel superficial to the rectus muscle. 

The masseter is a muscle of mastication. It helps with food digestion rather than facial expression.