Skull ( Anterior View) Flashcards
Coronal suture
A joint that separates the frontal bone from the parietal bones. Allows skull to move and mold. Brain grows in children.
Parietal bone
A pair of large, flat, quadrilateral bones. Forms the sides and roof of the CRANIUM. Protects the right and left parietal lobes of the brain.
Greater wing of sphenoid bone. (GWS)
Two large, curved, regular bony structures that extend outward from the lower part of the sphenoid bone on either side of the skull help us form the base and lateral sides of the skull and combination the orbital floor.
Temporal bone
A thick, hard bone that forms part of the side and base of the skull. Protects nerve structures and control of hearing and balance.
Optic canal
Funnel shaped bony passageway in the sphenoid bone. It allows the optic nerve, ophthalmic artery, mental sheaths, and sympathetic nerve fibers to pass through.
Lacrimal bone
A small, paired facial bone that’s part of the medial wall of the orbit and is the smallest bone in the skull. Provide support to structures.
Ethmoid bone.
Is a spongy a regular bone of the skull. Contributes to the formation of medial walls of the orbit, the nasal septum, and the roof and lateral walls of the nasal cavity.
Middle nasal Concha
A curved, bony structure, in the lateral nasal wall that covers the middle nasal medius. Helps warm and humidify air as it passes to the lungs.
Perpendicular plate
A thin, flattened bone which extends vertically from the horizontal cribriform above it.
forming the septum of the nose.
Vomer bone
A small, thin bone, located in the middle of the nasal cavity, dividing it between the left and right nasal cavities.
Forms the nasal septum together with the perpendicular plate.
Zygomatic bone
A.k.a. cheekbone. A pair of a regular shaped bones that form the cheeks and part of the eye socket.
Protects the nerves and blood vessels that run through the face and provides an attachment for muscles that help the jaw move
mastoid process of temporal bone
Is a bony projection that extends from the bottom of the skull, behind the ear, and is part of the temporal bone.
This bone is for muscle attachment, middle ear, pressure, regulation, and inner ear protection.
Inferior nasal concha
A.k.a. inferior turbinate. A small, curved, bony plate that’s located on the lateral wall of each nasal cavity.
Increases the surface area of the nasal cavity, humidifying the air to the lungs, direct airflow.
Maxilla bone
The bones that form the upper part of the jaw, the roof of the mouth and parts of the eye, socket and nose.
Provides critical bone structure to the skull and defines the face.
Frontal bone
Is a bone that forms the anterior and superior portions of the skull.
Supports the head structure and protects the brain, including eyes and nasal passages.
Frontal squama of frontal bone
Largest part of frontal bone.
Forms forehead helps form the cranial cavity in front of the parietal bones.
Glabella bone
Is a bony point, present on the frontal bone between two superciliary arches.
Controls facial movements that involve eyebrow and forehead.
Frontal nasal suture
Connect the frontal bone in the two nasal bones.
Flexible, gives room to grow .
Supraorbital notch
Is a small opening in the frontal bone that allows the super orbital nerve, artery, and veins to pass through to the forehead.
Supraorbital margin
The upper edge of the eye sockets. Square shaped opening at the front of the skull.
Protects and provides structural integrity for the eye.
Supraorbital margin
The upper edge of the eye sockets. Square shaped opening at the front of the skull.
Protects and provides structural integrity for the eye.
Nasal bone
The bones are located in the upper and middle part of the face. a pyramidal structure made up of two thin, oblong bones that form the bridge of the nose in humans
Mandible
Lower jawbone. The only movable bone in the skull, host the lower teeth essential for chewing food.
Mental foreman
Small, funnel shaped opening in the mandible that allows a nerve endings in the mental artery to exit the mandibular canal
Mandibular symphysis
Is a vertical line on the mandible that marks the point where the right and left mandibular fuse during development
