The anterior and posterior triangles of the neck and their associated muscles are outlined. The submandibular salivary gland is located inferior and medial to the mandible. The accessory nerve, glossopharyngeal nerve, vagus nerve, hypoglossal nerve, and cervical nerves are described. Several branches...
Explore the anatomy and function of the head and neck muscles with Innerbody's interactive 3D model.
The brachial apparatus gives rise to the trigeminal nerve in the face. These apparatus develop into the muscles, vessels, bone, and nerves in the face and neck. The brachial arch is made up mainly of mesoderm and neural crest cells. The first brachial arch develops into the mandibular nerve,...
It originates from three major cranial nerves: Vagus nerve (CN X) Glossopharyngeal nerve (CN IX) Maxillary nerve (CN V2) The pharyngeal branches of the vagus nerve provide motor innervation to all the structures and muscles of the pharynx, except the stylopharyngeus. The latter receives ...
and vertebral arteries that contribute to the posterior circulation of the brain. Seven cervical vertebrae, combined with cartilages, various ligaments, and muscles, make a sophisticated and flexible structure that allows a variety of head/neck movements. Similar to other areas of the spine, cervical...
The anterior of the elbow is called the cubital fossa, in which, besides the joint, are found important nerves and vessels intended for the supply of both the forearm and hand. Forearm Here comes the part that most students consider the hardest. The twenty muscles, and two bones (radius ...
The anatomy of neck arteries, normal variations, and anastomoses between different arteries is discussed in this chapter. All major arteries of the neck originate from the aortic arch via three main vessels: the brachiocephalic trunk, left common carotid
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Definition The first part of the digestive system that contains the structures necessary for mastication and speech; teeth, tongue and salivary glands. Tongue A muscular organ in the oral cavity that enables taste sensation, chewing, swallowing and speaking. Muscles of the tongue Intrinsic: Superior...
A vestibular schwannoma or acoustic neuroma may result in the loss of function of the chorda tympani on the ipsilateral side; this is often also associated with paralysis of ipsilateral facial muscles and impaired secretions of the lacrimal, submandibular, and sublingual glands. A complete loss of...