Week 2 - The palate and mandible Flashcards
What are the 3 parts of the oral/facial structure
- Skull
- The palate
- The mandible
The mandible stays in place because of the tempromandibular ligaments, what are they called?
- Temporomandibular ligament
- Sphenomandibular ligament
- Stylomandibular ligament
What does the masseter do?
It pulls manidble UPWARDS and BACKWARDS
What does the contraction of the temporalis do?
contraction pulls upwards and BACKWARDS on the mandible
What is the job of the internal (medial) pterygoid?
Its a major elevator of the jaw, it forms a sling with the masseter.
What does the contraction of the internal (medial) pterygoid do?
contraction pulls UPWARDS on the mandible
What does the contraction of the external (lateral) pterygoid do?
contraction of these muscles pulls the mandible DOWNWARDS and FOREWARD
Where does the anterior digastric belly attach?
it attaches inside the lower border of the mandible to a tendon
What does contraction of the digastric (anterior belly) do?
contraction pulls DOWNWARDS on the mandible
What is the function of the mylohyoid?
It is essential in performing the functions of swallowing and speaking
What does contraction of the mylohyoid do?
Contraction pulls DOWNWARDS on the mandible
What does contraction of the geniohyoid do?
Contraction pulls DOWN on the mandible
What are the two parts of the hard palate?
- Palatine process of maxilla
- Horizontal plates of palatine bone
The palatine process of maxilla takes up how many quarters of the mouth?
- 3/4
What are the two sections of the palate
- Anterior Hard palate
- Posterior soft palate
What is RUGAE?
it is the wrinkled wrinkled membrane
What is palatine RAPHE?
It is the raised ridge on the hard/soft palate
What are some of the anatmoical changes during development?
- Mandible and lips grow and changes in shape
- Teeth are added
- Pharynx lengths (and larynx descends)
- Tongue descends (fills less of the oral cavity)
The temporomandibular joint is where which structures meet?
- Mandible
- Temporal bone
What is the name of the upper part of the mandible that interacts with the temporal bone?
Condylar Process
Which muscles are involved in raising the mandible?
- Masseter
- Pterygoid
- Temporalis
The palatal RAPHE are the wrinkeld forlds at the anterior part of the palate. True or false?
False
- The Palatal RAPHE is the raised ridge doown the centre of the palate.
- The RUGAE are the wrinkled folds on the palate
Which outer muscle can you feel when clenching your teeth?
Masseter
The two structures that meet at the Temporomandibular Joint are seperated by the ARTICULAR DISC. True or false?
TRUE
Which of the following is not a muscle of the mandible:
- Glossopalatine
- Internal pterygoid
- masseter
- temporalis
Glossopalatine
Which fan-like muscle covers most of the side of the cranium?
Temporalis
