Intro: The skull is composed of bones that are interlocked (connected) along Sutures are joints that only occurs in the. It also contributes to the compliance and of the skull 8 of these cones make up the and the other 14 make up the skeleton



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Section 7.6: The Skull Notes

Intro:

  • The skull is composed of _____ bones that are interlocked (connected) along ____________

  • Sutures are ___________ joints that only occurs in the __________. It also contributes to the compliance and ___________ of the skull

  • 8 of these cones make up the _________ and the other 14 make up the __________ skeleton

  • __________: (lower jawbone) - “_________ bone that is _________ to the cranium by ligaments” (Shier,142)

Cranium:

  • Cranium: “_________ and _________ the brain” (Shier,142)

  • Attached to __________ that allows you to move your head and _________

  • __________ sinuses- air-filled cavities in some cranial bones, they are lined by mucous membranes are connected by passageways that lead to the nasal cavity

  • 1. __________ bones: “forms the __________ (near the front) portion of the skull above the eyes” (Shier,142)

  • The bony socket of the eye is marked by a bony elongated path that lies directly under the eyebrow (supraorbital foramen) “where blood vessels and nerves pass to the tissues of the forehead” (Shier,142)

  • Contains two frontal ________, there is one above each eye near the ___________

  • 2. __________ bones: located on each side of the skull _________ the frontal bone

  • Forms __________________ of the cranium

  • They unite at the ____________ along the sagittal suture (dense, fibrous connective tissue joint between the two parietal bones)

  • “Meet the frontal bone along the coronal suture” (separates the frontal bone and parietal bones)

  • 3. ____________ bone:

  • Meets the parietal bone along the lambdoid suture (dense fibrous connective tissue joint that connects the parietal bone and occipital bone)

  • ___________ of the cranium

  • Forms __________ of skull

  • Nerve fibers pass from the brain to the vertebral canal and become part of the spinal cord through a large opening called the foramen magnum

  • 4. _____________ bones:

  • On each side of the skull, joins the parietal bone along the squamous suture (connects the temporal squama with the lower border of the parietal bone)

  • Makes up the _________________ of cranium

  • Mandibular fossae: depressions that form a ________ with the rounded ends of the lower _______

  • Mastoid process: “provides ____________ to some muscles of the _________”

  • Styloid process: “gives attachment to _____________ associated with the __________ and pharynx”

  • _____________ process: “helps form the prominence of the __________ and joins the zygomatic bone”



  • 5. ____________ bone: “forms base of the cranium, __________ of the skull, and the floors and sides of the orbits” and contains two sphenoidal ________. A portion of this bone will form a sella turcica in which a pituitary _________ will fill in the indentation.

  • 6. __________ bone: located ___________ to the sphenoid bone and contain ethmoidal sinuses

  • -Cribriform Plates: form a portion of the roof of the __________ cavity

  • -Crista Galli: functions in attachments of ____________ and ____________ the __________ of the brain

  • -Perpendicular plate forms a portion of the nasal septum

  • -Superior nasal conchae: scroll-shaped bones attached to lateral walls of nasal cavity and support mucous membranes of the nose

Facial Skeleton:

  • has 13 _________ bones and a ___________ lower jaw and create the structure of the face and provide attachments for muscles that control facial movements/_____________

  • ___________: forms the ________ jaw and some parts make up the hard palate (“bones of the anterior roof of the mouth”), floors of the orbits and nasal cavities, and they house sockets of the upper _________. The ____________ process creates an arch that will contain the teeth

  • _________ Bones: __-shaped bones located ________ the maxillae which form the posterior part of the hard palate and the nasal cavities and its walls

  • ____________ Bones: form the noticeable parts of the _______ below and by the eyes and help in the formation of walls and floors of the orbital cavity. Each bone has a temporal process and will join together to form the zygomatic arch (____________)

  • 4. __________ bones: ________ bone, located __________ the eye socket closer to the walls of the __________ cavity.

  • 5. __________ bones: _______ thin and long bones that makes up the ________ of the nose by joining along the _____________

  • 6. __________ bone: very thin, located at the midline inside the nasal cavity. Forms the nasal __________ when combined with the __________ bone.

  • 7. ___________ nasal conchae: Locate toward the inferior (________) of the nasal cavity. Small and ________. They hold important _________ membranes.

  • 8. _________: the _________ jaw. Consists of two parts:

  • ______________ condyle (top part closest to the ________) : attached to muscles that allow _____________

  • Coronoid process (projection behind the last __________):

  • Alveolar arch: (dental alveoli) __________ part that houses the __________ teeth.

Infantile Skull:

  • An infant's skull has a slightly __________ structure, for example; the nasal cavity and jaw are considerably smaller than an adult’s.

  • Thin and ___________, not as easily ___________ as a developed skull.

  • __________ parts of the skull that are not __________ developed yet. They are _______ and ___________. This allows for better transfer of ___________ and ________ passage through the ____________ ____________.


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