The motions of the mandible are chewing, talking, yawning etc. Unwanted movement cause problems like dislocation at the hinge , trouble swallowing, choking, poor enunciation in speech , cross-bite or over-bite causing uneven wear on the teeth, and maybe biting of the tongue. I am not sure exactly what you are getting at
The tooth that is coming in behind the mandibular tooth is not deciduous, it will be a permanent tooth. These permanent mandibular teeth should be coming in anywhere from 6-10 years of age.
The plane that separates the mouth into a maxillary and mandibular section is called the occlusal plane.
A mandibular palp is usually used to help guide food into the mouth and/or to aid in cleaning a crustacean or insect's body.
Temporo Mandibular Joint
The jaw bone articulates with the temporal bone at the mandibular fossa, also known as the glenoid fossa or the mandibular fossa of the temporal bone. This is where the temporomandibular joint is formed, allowing for movements of the jaw.
The mandibular branch (V3) of the trigeminal nerve (CN V) runs down through the mandibular foramen to all the lower teeth. They need to be able to find that spot to properly numb the teeth of the mandible.
The mandibular condyle is a rounded projection at the end of the mandible that articulates with the skull to form the temporomandibular joint (TMJ). Its function is to allow for smooth and controlled movements of the jaw during activities such as chewing, speaking, and yawning.
Mandibular 2nd Molar
Mandibular Ramus
submandibular lymph node
Temporal Bone!
temporalis