It’s the bone of lower jaw. It’s the most inferior structure in the skull anterior view.
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It’s the bone of lower jaw. It’s the most inferior structure in the skull anterior view. It consists of: the body of mandible anteriorly. the ramus of mandible posteriorly. These meet posteriorly at the angle of The mandible Body of mandible angle of mandible ramus of mandible
description
The mandible. ramus of mandible. angle of mandible. Body of mandible. It’s the bone of lower jaw. It’s the most inferior structure in the skull anterior view. It consists of: the body of mandible anteriorly. the ramus of mandible posteriorly. - PowerPoint PPT Presentation
Transcript of It’s the bone of lower jaw. It’s the most inferior structure in the skull anterior view.
It’s the bone of lower jaw. It’s the most inferior structure in the skull anterior view. It consists of: the body of mandible anteriorly. the ramus of mandible posteriorly. These meet posteriorly at the angle of mandible.
The mandible
Body of mandible
angle of mandible
ramus of mandible
The mental protuberance is a projection at middline where the two sides of the mandible meet.On each side mental foramen is visible, passing through it mental nerve & vessels.There is also oblique ridge for muscle attachment
The mandible
Oblique ridgeMental
foramen
On lateral view the superior part of the ramus extends upwards to form a condylar and coronoid process . The condylar process is involved in articulation of the mandible with the temporal bone. The coronoid process is the point of attachment for the temporalis muscle
The mandible
Condylar process
Coronoid process
On medial surface of mandible body: Submandibular fossa for submandibular S. gland Sublingual fossa for sublingual S. gland Mylohyoid ridge for mylohyoid muscle attachment.
The mandible
Fossa for submandibular
gland
Fossa for sublingual
gland
Mylohyoidridge
The seven cervical vertebrae form the bony framework of the neck..
Cervical vertebrae
Typical Cervical vertebrae are characterized by: Small bodies. Bifid small spinous processes. Transverse processes that contain a foramen (foramen transversarium). Large triangular vertebral foramen. Superior articular processes facing backward & upward. Inferior articular processes facing forward & downward.
Cervical vrtebrae
Together the foramina transversarium form a
longitudinal passage on each side of
the cervical spine for vertebral blood
vessels (artery and veins) passing
between the base of the neck and
the cranial cavity.
Cervical vrtebrae
Atypical Cervical vertebrae : The upper two cervical vertebrae (CI and CII) are modified for moving the head. The first cervical vrtebra (atlas): It has neither body or spinous process . It has anterior arch, posterior arch & a lateral mass on each side. Each lateral mass has articular surfaces on its upper & lower aspects.
Cervical vrtebrae
The atlas artigulates superiorly with skull occipital condyles & inferiorly with the axis. The second cervical vrtebra (axis): It has odontoid process (dens) which projects upward from the superior surface of body. The seventh cervical vrtebra has long & not bifid spine
Cervical vrtebrae
Atlas articulating with Axis
