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Front Back
Where is the Foramen Magnum and what is it for?
Located as a large hole in the occipital bone

It allows the brainstem to extend downward to the spinal cord.
Markings found on temporal bone

  • external auditory meatus - opening to the ear

  • Zygomatic process - forms part of the cheek-bone

  • Syloid process - sharp projection used as a point of attachment for some of the muscles associated with the tongue and larynx

The Skeletal system is divide into what 2 sections
The Axial Skelton

The Appendicular Skeleton
Forms the chin
The anterior portion of the Mandible bone
An irregulary shaped bone located between the eye orbits, helps to form the bony structure of the nasal cavity
The Erthmoid Bone
Depression in front of the ear
Temporomandibular joint (TMJ)-tension or stress cause pain.
The Axial Skeleton includes
  • Bones of the skull
  • Hyoid bone
  • bones of the middle ear
  • Vertebral Column
  • Bony thorax
Remember middle of body
Depress in midline of spheniod bone is for?
The Sella Turcica which forms the seat for the Pituitary Gland

(also called Turks saddle)
The cranium is consists of what 8 bones
  • 1 Frontal
  • 2 Pariental
  • 2 Temporal
  • 1 Occipital
  • 1 Sphenoid
  • 1 Ethmoid
The opening for the spinal cord in the spine
is called the vetebral foramen
Where is the external auditory meatus and describe what it forms or is for?
Found on the Temporal bone

Opening for the ear
Where does the pituitary gland sit?
In the Sella Turcica (Turks saddle) that is midline on the spheniod bone
The butterfly bone that forms part of the floor and sides of the cranium and part of the orbits surrounding the eyes?
The Sphenoid
Forms the forehead and the upper part of the bony structure surrounding the eyes
The Frontal Bone
The only freely movable joint in the skull
Mandible bone
Where is the zygomatic process marking?
Found on the temporal bone

forms part of the cheek bone
This bone carries the upper teeth?
The Maxilla
The Appendicular Skeleton includes

  • Bones of the arms and legs

  • Bones of the hip bones and bones of the shoulder girdles

This forms the anterior portion of the roof of the mouth?
The palantine process which is an extension of the maxilla
Forms the posterior part of the hard roof of the mouth and floor of the nasal cavity
The palantine Bones
Cleft palate is cause by what bones?
Is caused by failure of the palatine bones and maxillary bones to fruse
Forms the 2 upper sides of the head and roof of the cranial cavity
The two Pariental bones
This is the cheekbone and also forms part of the orbits of the eyes
The Zygomatic Bones
Other facial bones just mentioned in studies
  • Lacrimal bones
  • nasal bones
  • vomer
  • inferior nasal conchae
Verterbrae has ___ Bones
Twenty Six
The upper limb contains
  • the humerus
  • the ulna
  • the radius
  • carpals
  • metacarpals
  • phalanges
Facts of Broken jaw
  • cannot cast
  • must be immobiled by wiring to upper jaw
  • patients cannot talk, eat or vomit
  • wirecutter need to be on hand in case of vomiting
  • usually a result of trauma or automobile accident
The sternum is made up of the

  • manubruim

  • body

  • xiphoid process (tip of sternum)

Functions of Sinuses

  • lessen the weight of the skull

  • increase the sound of voice

air-filled cavities in several bones of the skull
sinuses
The lower jaw bone, carries the lower teeth
Mandible
U Shaped Bone in upper neck
Hyoid Bone
Fontanels are usually closed by
Two years of age
Anchors the tongue and is associated with swallowing
Hyoid bone
A sinus infection characterized by stuffiness and pain in the overlying facial region
Sinusitis
Middle portion of verterbrae and how many
Thoracic Verterbrae

12  ---  T 1 to T 12
Slipped discs
are disc the may become damaged
Allergies cause the membranes that line the facial sinuses to
oversecrete mucous
Joining of the bones of the skull together like a zipper is called
Suture
Major sutures of the skull

  • Coronal sutre

  • Lambdoil suture

  • Squamosal suture

Four Paranasal Sinuses
  • frontal sinuses
  • ethmoid sinuses
  • sphenoidal sinus
  • maxillary sinus
Two Major Fontanels
  • larger, diamonds shaped anterior fontanel
  • smaller, postier, triangular occipital fontanel
The two bones of the forearm
Radius and ulna
THe ankle is formed by
7 tarsal bones
Bony Structure that protects the brain
The Cranium
The soft areas that have not yet been converted to bone
The fontanels
The spinal cord runs from
the base of the brain through the betevral foreman
The bony cone-shaped cage that surrounds and protects the lungs, heart, large blood vessels, liver and spleen.
Thoracic cage
Head of the radius articulates with

  • the humerus

  • the ulna

  • carpal bones

Occurs when the skull expands too much from an excessive accumulation of fluid, the bones are forced apart and the skull enlarges
Hydrocephalis
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