0
The upper jaw is attached to the skull and therefore can not move. It is the lower jaw that is able to move. Several muscles are involved, sometimes working together to cause the desired movement. The jaw can move in primarily three motions, down or open, up or closed, and laterally to the right or left. The muscles used to close the jaw are primarily the two Masseters, the two Medial Pterygoids, and the two Temporalis muscles. The Lateral Pterygiod muscles work with the Medial Pterygoid muscles on the same side to move the jaw laterally to the right or left, and if both Lateral Pterygoid muscles are contracted simultaneously, the lower jaw slides forward protruding the chin. The anterior fibers of the Temporalis also help in protruding the jaw and it's posterior fibers pull it back. Opening the jaw is a bit more complicated. The primary muscles used are the Digastric muscles. What complicates the situation is that they pull off the hyoid bone. The hyoid bone is stabilized by the Sternohyoid, Stylohyoid, Omohyoid, Thyrohyoid, and Mylohyoid muscle pairs. Without stabilization of the hyoid bone, the Digastric muscles could not work, so, indirectly they are involved in opening the lower jaw. When opening really wide, the Lateral Pterygoids pull the jaw forward in addition to the rotation caused by the Digastrics.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoThe muscles that move your jaw are also known as muscles of mastication. They are:
Masseter
Temporalis
Medial pterygoid
Lateral pterygoid
Wiki User
∙ 14y agoThe primary muscles of mastication are:
Masseter
Temporalis
Medial pterygoid
Lateral pterygoid
Wiki User
∙ 12y agothe mental tubercle, a central, frontal protuberance glenioglossus muscle, gleniohyoid muscle.
i think thats all
Add your answer:
Earn +20 pts
What type of muscles helps you move your jaw to chew food?
your mouth
What is the name for the muscle contractions that helps food move through the digestive system?
peristalsis
How does the esophagus help move food through the digestive system?
peristalsis is a muscle that helps food to get through the oesphagus
Do green sea turtles chew their food?
green sea turtles do not have the ability to move their jaws laterally, so they can't chew the way that mammals can :) hope it helps
What muscle helps move food through your digestive system?
Smooth muscle is involuntary tissue. It is not controlled by the brain. Smooth muscle forms the muscle layers in the walls of organs such as the lower part of the esophagus, stomach and intestines.
What muscle helps move the lungs?
diaphragm
How does the digestive system move food through itself?
Muscle motion in your digestive system called Peristalsis helps the food to travel through your digestive system.
What is the difference between a organ and a muscle?
an organ is a system that helps your bodily functions. a muscle helps you work and move.
What is the difference between an organ and a muscle?
an organ is a system that helps your bodily functions. a muscle helps you work and move.
Why do Arteries have very smooth lining inside them?
becuase it does
What is the medial rectus muscle of the eye?
it is the lower muscle of the eyeball. Helps move the eyeball.
What are mucles?
Muscle is a body parts in side of ous. There are three different types of muscle the Skeletal,Smooth and the Cardiac. The skeletal muscle is the muscle that you can see and feel its also a voluntary muscle that means you choose to move them. The Smooth is in your digustive system it helps you move along the food. The Cardiac is the muscle in your heart it has a job of pumping all the blood out from the heart.
