What are the basic types of movement by the temporomandibular joint?

The temporomandibular joint allows for movement of the mandible during speech and mastication. Two basic types of movement are performed by the joint and its associated muscles: a gliding movement and a rotational movement.

What type of joint is temporomandibular joint?

The temporomandibular joint (TMJ), also known as the mandibular joint, is an ellipsoid variety of the right and left synovial joints forming a bicondylar articulation.

Where is the Postglenoid process?

temporal bone
The process of the temporal bone separating the mandibular fossa from the external acoustic meatus.

What type of joint is the temporomandibular joint quizlet?

The temporomandibular joint is bilateral (one on either side), synovial (filled with fluid from a synovial membrane) with an articulating disc. It is also called a ginglymoarthrodial joint.

How many planes of movement can the mandible move in?

three reference planes
Rotational movement of the mandible can occur in all three reference planes: horizontal, frontal (vertical), and sagittal. In each plane it occurs around a point called the axis.

What four movements are provided by the TMJ?

Movements. A variety of movements occur at the TMJ. These movements are mandibular depression, elevation, lateral deviation (which occurs to both the right and left sides), retrusion and protrusion.

What is special about the temporomandibular joint?

It is a bilateral synovial articulation between the temporal bone of the skull above and the mandible below; it is from these bones that its name is derived. This joint is unique in that it is a bilateral joint that functions as one unit.

What is a Ginglymoarthrodial joint?

The temporomandibular joint (TMJ) is a ginglymoarthrodial joint formed by the glenoid fossa of the temporal bone and the mandibular condyle. An articular disc separates the joint into two synovial cavities with distinctive movement patterns.

What do Plane joints do?

plane joint, also called gliding joint or arthrodial joint, in anatomy, type of structure in the body formed between two bones in which the articular, or free, surfaces of the bones are flat or nearly flat, enabling the bones to slide over each other.

What structures form the temporomandibular joint quizlet?

Convex condyle of the mandible articulating with the concave mandibular fossa of the temporal bone and the convex articular tubercle (eminence) of the temporal bone.

What are the anatomical planes?

Anatomical planes can be used to describe any body part or an entire body. (View a detailed body plane image.) Lateral Plane or Sagittal Plane:Imagine a vertical plane that runs through your body from front to back or back to front. This plane divides the body into right and left regions.

What is the plane joint?

Plane joint, also called gliding joint or arthrodial joint, in anatomy, type of structure in the body formed between two bones in which the articular, or free, surfaces of the bones are flat or nearly flat, enabling the bones

Which plane divides the body into front and back regions?

This plane divides the body into front (anterior) and back (posterior) regions. Transverse Plane: Imagine a horizontal plane that runs through the midsection of your body. This plane divides the body into upper (superior) and lower (inferior) regions.

What are the different planes of the sagittal system?

Median or Midsagittal Plane: Sagittal plane that divides the body into equal right and left regions. Parasagittal Plane: Sagittal plane that divides the body into unequal right and left regions. Frontal Plane or Coronal Plane: Imagine a vertical plane that runs through the center of your body from side to side.