•Maxilla(上颌骨)– forms the upper jaw • Incisive bone or pre-maxilla(切骨或前上颌骨)– houses the incisor teeth of the upper jaw • Orbit(眼眶)– the eye socket, formed by contributions from several bones •...
The lips are the soft and movable most external parts of the oral cavity. The tongue, on the otherhandThe hand constitutes the distal part of the upper limb and provides the fine, precise movements needed in activities of daily living. It consists of 5 metacarpal bones and 14 phalanges, as...
The primary lips characteristic of selachians, after the maxillary and premaxillary bones have developed within the territory of the upper lip (toadfish, cod), may disappear (trout, Spelerpes), accompanied by a forward migration of the lower jaw. The secondary lips of higher forms are first ...
1. The lower jaw of a vertebrate animal. 2. Either the upper or lower part of the beak in birds. 3. Any of various mouth organs of invertebrates used for seizing and biting food, especially either of a pair of such organs in insects and other arthropods. man·dib′u·lar (-dĭb′...
MaxillaPairedUpperjawThe jaw is made up of the mandible, which comprises the lower jaw, and the maxilla, which comprises the upper jaw. The mandible articulates with the temporal bone via the temporomandibular joint (TMJ). The 4 muscles of mastication produce the movements of the TMJ to ensur...
The Sphenoid Bone Ethmoid bone b. The Facial Bones The Nasal Bones The Maxillæ (Upper Jaw) The Lacrimal Bone The Zygomatic Bone The Palatine Bone The Inferior Nasal Concha The Vomer The Mandible (Lower Jaw) The Hyoid Bone c. The Exterior of the Skull ...
*Thoracic Cage*: The thoracic cage is made up of the sternum (breastbone) and 12 pairs of ribs. These bones form a protective cage around the organs of the upper torso, including the heart and lungs. Appendicular Skeleton There are a total of 126 bones in the appendicular skeleton. It ...
plexus, which innervates the teeth of the upper jaw.[12] The posterior superior alveolar nerve forms the posterior portion of the superior dental plexus and innervates the maxillary molar teeth, the surrounding gingiva, the mucosa of the cheek, and the membrane of the maxillary sinus. The ...
A more detailed description of the neurologic control of swallowing will be described. Also covered in greater detail are the anatomy and physiology of the esophagus and the upper and lower esophageal sphincter. Finally, specific changes seen in swallowing with aging will be described....
W right Introduction form ing the skeleton of the upper jaw, w hich is xed to the cra- nial base. (The m andible is detailed in Chapter 19.) On the lateral aspect of the skull is the thin pterion. The pte- The skull can be divided into two parts: the neurocranium , rion, ...