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Frontal
Which skull bone is shown?

Nasal
Which skull bone is shown?

Maxilla
Which skull bone is shown?

Mandible
Which skull bone is shown?

Parietal
Which skull bone is shown?

Occipital
Which skull bone is shown?

Lacrimal
Which skull bone is shown?

Palatine
Which skull bone is shown?

Ethmoid
Which skull bone is shown?

Sphenoid
Which skull bone is shown?

Temporal
Which skull bone is shown?

Zygomatic
Which skull bone is shown?

Inferior Nasal Conchae
Which skull bone is shown?

Vomer
Which skull bone is shown?

Vomer
Which skull bone is shown?

Sella Turcica (Hypophosyeal Fossa)
Which anatomical region is shown?

Sphenoid
Which bone of the skull forms the posterior boundary of the anterior cranial fossa?
Neurocranium
What term describes the bones that house and protect the brain?
Viscerocranium
(think visceral function = essential function)
What term describes the bones that house and protect the airway?
Ethmoid
Which bone in the skull makes up the cribriform plate?
True
True or False: Our skull contains 2 separate maxillary bones.
True
(Fuse at 1 year old)
True or False: We are born with 2 mandibular bones.
False
(2 palatine bones)
True or False: Our skull contains 1 palatine bone.
Fontanelle
What term describes a fibro-membranous junction, or "soft-spot", on the top of a developing skull?
Anterior Fontanelle
Which structure is indicated on the developing skull?

17-18 months with most by 2.5 years
When does the anterior fontanelle close?
Metopic Suture
Which structure is circled on the developing skull?

3-9 months
When does the metopic suture close?
Posterior Fontanelle
Which structure is indicated on the developing skull?

2-3 months
When does the posterior fontanelle close?
Sutures
What type of skull joint is immovable and replaces fontanelles?
Synchondroses
What type of joint is made of cartilage and present on the base of a developing skull?
Sphenoid fontanelle
What structure is labeled 1 on the developing skull?

6 months
When does the sphenoid fontanelle close?
Mastoid fontanelle
What structure is labeled 2 on the developing skull?

6-18 months
When does the mastoid fontanelle close?
Mandibular symphysis
What is labeled 1 on the developing skull?

When does the mandibular symphesis close?
Spheno-occipital synchondrosis
What is labeled 2 on the developing skull?

14-18 yo
When does the spheno-occipital synchondrosis close?
Anterior intraoccipital synchondrosis
What is labeled 3 on the developing skull?

about 4-10 yo
When does the anterior intraoccipital synchondrosis close?
Mastoid fontanelle
What is labeled 4 on the developing skull?

6-18 months
When does the mastoid fontanelle close?
Posterior intraoccipital synchondrosis
What is labeled 5 on the developing skull?

about 2-4 years old
When does the posterior intraoccipital synchondrosis close?
Sliding/Gliding
(Ginglymoarthrodial)
What type of movement is seen at the TMJ?
Atlanto-Occipital
Which skull joint is responsible for head and neck movement?
Synovial
What type of joint is the atlanto-occipital joint?
Sagittal Suture
What type of suture is shown?

Coronal Suture
What type of suture is shown?

Lambdoid Suture
What type of suture is shown?

Squamosal Suture
What type of suture is shown?

Palatal Suture
What type of suture is shown?

Frontomaxillary
What type of suture is shown?

Frontozygomatic
What type of suture is shown?

Zygomaticotemporal
What type of suture is shown?

Zygomaticomaxillary
What type of suture is shown?

Frontonasal
What type of suture is shown?

Nasomaxillary
What type of suture is shown?

Atlanto-Occipital
Which type of joint in the skull becomes extremely fragile in Trisomy 21?
Infraorbital foramen
What foramen is shown?

Mental foramen
What foramen is shown?

CN V2 (Maxillary nerve)
Which cranial nerve passes through the infraorbital foramen?
CN V3 (Mandibular nerve)
Which cranial nerve passes through the mental foramen?
Frontal, zygomatic, palatine, alveolar
What are the 4 processes of the maxilla?
Mandible
What is the largest bone in the skull?
Coronoid process
Which part of the mandible is shown?

Condyloid process
Which part of the mandible is shown?

Mandibular notch
Which part of the mandible is shown?

Mandibular foramen
What foramen is shown?

Ramus
Which part of the mandible is shown?

Body
Which part of the mandible is shown?

Angle
Which part of the mandible is shown?

Mylohyoid groove
(separates floor of mouth from neck)
Which part of the mandible is shown?

Mental Spines/Genial Tubercles
Which part of the mandible is shown?

Frontal
What bone makes up the superior wall (roof) of the orbit?

Zygomatic
Which bone makes up the lateral wall of the orbit?

Maxilla
Which bone makes up the inferior/medial wall of the orbit?

Lacrimal, Ethmoid, and Palatine
Which 3 bones make up the medial wall of the orbit?

Sphenoid
Which bone makes up the posterior wall of the orbit?

Sphenoid sinus
Which sinus is shown in purple?

Frontal sinus
Which sinus is shown in green?

Ethmoid air cells
Which sinus is shown in orange?

Maxillary sinus
Which sinus is shown in red?

Optic canal
What is the red arrow pointing to?

Foramen rotundum
What is the red arrow pointing to?

Foramen ovale
What is the red arrow pointing to?

Foramen spinosum
What is the red arrow pointing to?

Foramen lacerum
What is the red arrow pointing to?

Internal acoustic meatus
What is the red arrow pointing to?

Foramen cecum
What is the red arrow pointing to?

Anterior ethmoidal foramen (obscured)
What is the red arrow pointing to?

Superior orbital fissure
What is the red arrow pointing to?

Posterior ethmoidal foramen (obscured)
What is the red arrow pointing to?

Jugular foramen
What is the red arrow pointing to?

Hypoglossal canal
What is the red arrow pointing to?

Cribiform plate
What is the red arrow pointing to?

Crista galli
What is the red arrow pointing to?

Jugular foramen
What is the red arrow pointing to?
