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

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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

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Page 1: 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

Page 2: It’s  the bone of  lower jaw. It’s  the  most inferior structure  in the  skull  anterior view

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

Page 3: It’s  the bone of  lower jaw. It’s  the  most inferior structure  in the  skull  anterior view

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

Page 4: It’s  the bone of  lower jaw. It’s  the  most inferior structure  in the  skull  anterior view

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

Page 5: It’s  the bone of  lower jaw. It’s  the  most inferior structure  in the  skull  anterior view

The seven cervical vertebrae form the bony framework of the neck..

Cervical vertebrae

Page 6: It’s  the bone of  lower jaw. It’s  the  most inferior structure  in the  skull  anterior view

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

Page 7: It’s  the bone of  lower jaw. It’s  the  most inferior structure  in the  skull  anterior view

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

Page 8: It’s  the bone of  lower jaw. It’s  the  most inferior structure  in the  skull  anterior view

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

Page 9: It’s  the bone of  lower jaw. It’s  the  most inferior structure  in the  skull  anterior view

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