Attachments:
The posterior border of the hard palate provides attachment to the palatine aponeurosis.
The posterior nasal spine gives origin to the musculus uvulae
The palatine crest provides attachment to a part of the tendon of tensor veli palatini muscle.
The attachments on the inferior surface of the basiocciput are as follows:
a. The pharyngeal tubercle gives attachment to the raphe which provides insertion to the upper fibres of the superior constrictor muscle of the pharynx .
b. The area in front of the tubercle forms the roof of the nasopharynx and supports the pharyngeal tonsil.
c. The longus capitis is inserted lateral to the pharyngeal tubercle
d. The rectus capitis anterior is inserted a little posterior and medial to the hypoglossal canal
The attachments on the medial pterygoid plate are as follows:
a. The pharyngobasilar fascia is attached below to the processus tuberis.
Processus tuberis is a triangular projection which is present at the middle of the posterior border of medial pterygoid plate.
It supports the medial end of cartilaginous part of auditory tube.
b. The lower part of the posterior border, and the pterygoid hamulus, give origin to the superior constrictor of the pharynx.
c. The upper part of the posterior border is notched by the auditory tube.
d. The pterygomandibular raphe is attached to the tip of the pterygoid hamulus at one end and to the mandible behind 3rd molar tooth at the other end.
The attachments on the lateral pterygoid plate are as follows:
a. Its lateral surface gives origin to the lower head of lateral pterygoid muscle.
b. Its medial surface gives origin to the deep head of the medial pterygoid. The small, superficial head of this muscle arises from the maxillary tuberosity and the adjoining part of the pyramidal process
of the palatine bone.
The infratemporal surface of the greater wing of the sphenoid gives origin to the upper head of the lateral pterygoid muscle, and is crossed by the deep temporal and masseteric nerves.
The spine of lhe sphenoid is related laterally to the auriculotemporal nerve, and medially to the chorda tympani neve and auditory tube.
Its tip provides attachment to the (i) sphenomandibular ligament, (ii) anterior ligament of malleus, and (iii) pterygospinous ligament.
Its anterior aspect gives origin to the most posterior fibres of the tensor veli palatini and tensor tympani muscles.
The inferior surface of petrous temporal bone gives origin to the levator veli palatini.
The margins of the foramen magnum provide attachment to:
a. The anterior atlanto-occipital membrane anteriorly
b . The posterior atlanto-occipital membrane posteriorly.
c. The alar ligaments on the roughened medial surface of each occipital condyle.
The ligamentum nuchae is attached to the external occipital protuberance and crest.
The rectus capitis lateralis is inserted into the inferior surface of the jugular process of the occipital bone
The following are attached to the squamous part of the occipital bone
The area between the superior and inferior nuchal lines provides insertion medially to the semispinalis capitis, and laterally to the superior oblique muscle.
The area below the inferior nuchal line provides insertion medially to tlne rectus capitis posterior minor, and laterally to the rectus capitis posterior major
The mastoid notch gives origin to the posterior belly of digastric muscle Follow me in blogspot - [ Ссылка ] _________________________________________________________________________________________________________________ Visit my blogs - [ Ссылка ]
Contact me @ [ Ссылка ]
