Week 1

• How many bones are in the skull?

  22 bones
• What is the function of the neurocranium?

  Encloses the brain in the cranial cavity
• Which bone forms the forehead and roof of the orbits?

  Frontal bone
• What bones make up the sides and roof of the cranium?

  Parietal bones
• Which bone is located at the back and base of the skull?

  Occipital bone
• What is the position of the temporal bone?

  Sides and base of the skull
• Where is the sphenoid bone located?

  Base of the skull, behind the eyes
• What does the ethmoid bone form?

  Roof of the nasal cavity
• What is the function of the viscerocranium?

  Forms the facial skeleton
• Which bone is known as the upper jaw?

  Maxilla
• What is the lower jaw called?

  Mandible
• Which bones are referred to as cheekbones?

  Zygomatic bones
• What forms the bridge of the nose?

  Nasal bones
• Where is the lacrimal bone located?

  Medial orbital wall
• What does the palatine bone form?

  Posterior part of the hard palate
• Where are the inferior nasal conchae located?

  Within the nasal cavity
• What does the vomer form?

  Part of the nasal septum
• What are sutures in the skull?

  Immovable joints connecting skull bones
• What is the coronal suture?

  Between frontal and parietal bones
• Where is the sagittal suture located?

  Between the two parietal bones
• What does the lambdoid suture connect?

  Parietal bones and occipital bone
• What is the squamous suture?

  Between temporal and parietal bones
• What special feature does the frontal bone contain?

  Frontal sinus
• What features does the parietal bone have?

  Superior and inferior temporal lines
• What does the temporal bone include?

  Mastoid process and external acoustic meatus
• What is the function of the foramen magnum?

  Allows spinal cord passage
• What is unique about the sphenoid bone?

  Butterfly-shaped with sella turcica
• What does the ethmoid bone feature?

  Cribriform plate for olfactory nerve fibers
• What is the function of the frontal sinus?

  Lightens the skull and aids voice resonance
• Where is the maxillary sinus located?

  In the maxilla, largest sinus
• What is the function of the sphenoidal sinus?

  Contributes to resonance
• What do the ethmoidal sinuses aid in?

  Air filtration and humidification
• What are the main parts of the mandible?

  • Body: Contains teeth sockets
  • Ramus: Connects body to skull
  • Condylar Process: Articulates with temporal bone
  • Coronoid Process: Attachment for temporalis muscle
• What is the function of the mandible?

  • Facilitates mastication (chewing)
  • Aids in articulation (speech)
• What are the five layers of the scalp?

  1. Skin: Outer covering
  2. Connective tissue: Dense, fibrous layer
  3. Aponeurosis: Connects frontal and occipital muscles
  4. Loose areolar tissue: Facilitates movement
  5. Periosteum: Covers skull bones
• What does the term "SCALP" mnemonic refer to?

  Five layers of the scalp
• What does the term "neurocranium" refer to?

  Protective shell around the brain
• What does the term "visceral cranium" refer to?

  Supports structures that are part of the face
• What are the three parts of the cranial cavity?

  Anterior, middle, and posterior cranial fossae
• Which bones are in the anterior cranial fossae?

  Frontal, ethmoid, sphenoid