Anatomy of Head and Neck: Skull and Cranial Fossae
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Questions and Answers

What is the primary function of the cranium?

  • To protect the brain and house the special sensory organs (correct)
  • To facilitate the movement of the skull bones
  • To support the facial muscles and mandible
  • To regulate the body's temperature

What are the two main parts of the cranium?

  • The viscerocranium and the face
  • The cranium and the scalp
  • The skull and the mandible
  • The neurocranium and the viscerocranium (correct)

How many bones make up the neurocranium?

  • 7 bones
  • 9 bones
  • 8 bones (correct)
  • 6 bones

What is the purpose of skull sutures?

<p>To allow for brain growth during fetal development (A)</p> Signup and view all the answers

What is the result of the skull bones growing at the suture interface?

<p>The skull bones become fully ossified (A)</p> Signup and view all the answers

When do the skull bones become fully ossified?

<p>After brain growth is complete (A)</p> Signup and view all the answers

Which bone covers the forehead, part of the top of the head, and the roof of the orbits?

<p>Frontal bone (B)</p> Signup and view all the answers

What is the significance of the term 'temporal' in the context of the cranium?

<p>Reflects the passage of time (C)</p> Signup and view all the answers

Which bone is shaped like a butterfly and articulates with every other cranial bone?

<p>Sphenoid bone (D)</p> Signup and view all the answers

Where is the ethmoid bone positioned?

<p>Between the orbits (B)</p> Signup and view all the answers

Which bone covers the posterior region of the skull?

<p>Occipital bone (C)</p> Signup and view all the answers

What is the function of the parietal bones?

<p>Cover the lateral walls and roof of the cranium (B)</p> Signup and view all the answers

What is the primary function of the maxilla bone in the skull?

<p>Supporting the upper teeth (B)</p> Signup and view all the answers

Which bone has a distinct L shape and contributes to the hard palate?

<p>Palatine bone (B)</p> Signup and view all the answers

What is the function of the lacrimal bone?

<p>Draining tears into the nasal cavity (D)</p> Signup and view all the answers

Which bone forms the inferior posterior part of the nasal septum?

<p>Vomer bone (C)</p> Signup and view all the answers

What is the function of the inferior nasal conchae?

<p>Located in the lateral wall of the nasal cavity (A)</p> Signup and view all the answers

Which bone comprises the entire lower jaw?

<p>Mandible bone (A)</p> Signup and view all the answers

Which bones form the boundary of the anterior cranial fossa?

<p>Frontal, ethmoid, and lesser wing of sphenoid (B)</p> Signup and view all the answers

What structures are located in the middle cranial fossa?

<p>Temporal lobes and cranial nerves (A)</p> Signup and view all the answers

Which artery is associated with the anterior cerebral artery in the anterior cranial fossa?

<p>Internal carotid artery (B)</p> Signup and view all the answers

What structure is enclosed by the sella turcica?

<p>Pituitary gland (C)</p> Signup and view all the answers

Which bones form the boundary of the posterior cranial fossa?

<p>Temporal and occipital (D)</p> Signup and view all the answers

What is the clinical relevance of the sella turcica?

<p>It is a confined space where pituitary gland tumors can compress neighboring structures (B)</p> Signup and view all the answers

What is the main function of the Maxilla bone?

<p>To support the lower teeth and anchor the muscles of mastication (A)</p> Signup and view all the answers

How many pairs of sinus cavities are present in the skull?

<p>Four (C)</p> Signup and view all the answers

What is the function of the occipital condyle?

<p>To articulate with the cervical spine (D)</p> Signup and view all the answers

What is the primary function of the top seven vertebrae, known as the cervical vertebrae?

<p>To provide a dual role of weight support and head movement (D)</p> Signup and view all the answers

What is the term for the first two vertebrae, which are specialized to provide the greatest range of movement?

<p>Atlas and axis (C)</p> Signup and view all the answers

What is the intracranial region?

<p>The space that contains the brain and its surrounding elements (D)</p> Signup and view all the answers

What is the purpose of the exercise on the structure of a cervical vertebra?

<p>All of the above (D)</p> Signup and view all the answers

What is the characteristic of the cranial cavity when viewed from above?

<p>Three shallow depressions (D)</p> Signup and view all the answers

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