Contents
What is facial nerve anatomy?
Anatomical terms of neuroanatomy The facial nerve (the labyrinthine segment) is the seventh cranial nerve, or simply CN VII. It emerges from the pons of the brainstem, controls the muscles of facial expression, and functions in the conveyance of taste sensations from the anterior two-thirds of the tongue.
What are the facial muscles and their functions?
The facial muscles serve 2 major functions for the body: mastication and facial expressions. The muscles of mastication include the temporalis, medial pterygoid, lateral pterygoid, and the masseter (buccinator muscle is an important accessory of chewing). Another important function is facial expression.
What is the anatomy of the head?
The skull is formed from 8 bones that fuse together along suture lines. These bones include the frontal, parietal (2), temporal (2), sphenoid, occipital and ethmoid (Fig. 8). The face is formed from 14 paired bones including the maxilla, zygoma, nasal, palatine, lacrimal, inferior nasal conchae, mandible, and vomer.
Where is your facial nerve located?
The facial nerve exits the base of the skull at the stylomastoid foramen, which is an opening in the bone located near the base of the ear.
What is the anatomy of the head and neck?
The head rests on the top part of the vertebral column, with the skull joining at C1 (the first cervical vertebra known as the atlas). The skeletal section of the head and neck forms the top part of the axial skeleton and is made up of the skull, hyoid bone, auditory ossicles, and cervical spine.
What do you need to know about facial anatomy?
Prosthetic work needs a solid knowledge of anatomy and how the body is proportioned. For hairdressing, knowing the bones of the cranium is important for sectioning and cutting lines, as well as understanding facial proportions for styling. 1. The Skull 1.1. Bones of the Face 1.2. Bones of the Head 2. Muscles of the Face 3.
What is the 3 dimensional anatomy of the face?
Here, we discuss the 3-dimensional anatomy of the face as it relates to toxins and fillers, affording the reader a better understanding of facial anatomy and techniques to maximize patient safety. The muscles of the face fall into 2 categories: those responsible for facial expression and those involving mastication.
How does the anatomy of the face affect plastic surgery?
The facial anatomy combines to give the face form and function. Plastic surgical procedures can significantly affect facial form and function. The vast array of surgical and injectable procedures have expanded in recent years as the want and need to improve facial function and appearance has increased.
How is the anatomy of the face constant?
The anatomy of the face is fairly constant. Variant anatomy is seen in the thickness of the soft tissue layers, and in the size and orientation of cartilaginous structures such as the nasal cartilages (nose), tarsal plates (eyelids), and facial bones (maxilla, mandible, zygoma, etc.).