جــامعــه الحديدة طب كلـيهاألسنــان

The oral cavity. «palate»

1)Introduction.2)The hard palate .3)The soft palate .4)The muscle of the soft .5)Nerve supply of the palate.6)The Blood supply of palate .

The palate Lies in the roof of the oral cavity.Has two parts:

Hard (bony part) palate anteriorly

Soft (mucous tendon muscular) palate posteriorly.

Introduction

The Hard palate. Lies in the roof of the oral cavity. Forms the floor of the nasal cavity.

Its from by the palatine processes of maxillae and the horizontal palate of the palatine bones .”Its bony part” the hard

palate is mobile bone . Bounded.

By the alveolar arches and behind is continuous with the soft palate . It forms the floor of the nasal cavities . The hard palate is covered with the mucous membrane.

The soft palate. Its called the mucous tendon muscular . The soft palate is attached to the posterior border of the hard palate anteriorly ,and the pharyngeal wall laterally . Its free posterior border of the soft palate in the midline projection called The uvula So the soft palate is immobile bone.The soft palate is continuous at the side with the lateral wall of the pharynx . The soft palate is composed the mucous membrane ,palatine Aponeurosis and muscle.

The mucous membrane covers the upper and lower surface of the soft

palate . The palatine aponeurosis is fibrous sheet attached to the posterior border of

the hard palate .

The muscles of the soft

palate Action Nerve

supply Insertion Origin Name of muscle

Tenses soft palate

Medial pterygoid nerve of the mandibular nerve

With muscle other side forms palatine aponeurosis

Spine of sphenoid auditory tube

Tensor veli palatini

Raises soft palate

Pharyngeal plexus

palatine aponeurosis

Petrous part of temporal bone auditory tube

Levator veli palatini

Pulls root of tongue upward and backward

Pharyngeal plexus

Side of tongue

Palatine aponeurosis

Palatoglossus

Elevates wall of pharyn

Pharyngeal plexus

Posterior border of thyroid cartilage

Palatine aponeurosis

Palatopharyngeus

Elevates uvula

Pharyngeal plexus

Mucous membrane of uvula

Posterior border of hard palate

Musculus uvulae

Nerve supply of the palate.

1)The greater and lesser palatine nerves from the maxillary branched of the trigeminal nerve enter the palate from the greater and lesser palatine foramina.

2)The nasopalatine nerve branch of maxillary nerve enter the hard palate from the incisive foramen.

3)The glossopharyngeal nerve supplies the soft palate .

The Blood supply of palate.

1)The greater palatine branch of the maxillary artery.

2)The ascending palatine branch of the facial artery.

3)The ascending pharyngeal artery.

First Thank God, after that Thanks a lot for any one help my , to the search special Dr .Abdullah Mohagab and ever one to Listen to

me and help me . Without you I would not be the person I am today.

I can never be thankful enough for all your support .

Thank you for everything

Best wishes

a Zaid Hassen’By student : Wala

Dr.Abdullah Mohagab