Anatomy of Head and Neck: Skull and Cranial Fossae

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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?

To allow for brain growth during fetal development Signup and view all the answers

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

The skull bones become fully ossified Signup and view all the answers

When do the skull bones become fully ossified?

After brain growth is complete Signup and view all the answers

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

Frontal bone Signup and view all the answers

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

Reflects the passage of time Signup and view all the answers

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

Sphenoid bone Signup and view all the answers

Where is the ethmoid bone positioned?

Between the orbits Signup and view all the answers

Which bone covers the posterior region of the skull?

Occipital bone Signup and view all the answers

What is the function of the parietal bones?

Cover the lateral walls and roof of the cranium Signup and view all the answers

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

Supporting the upper teeth Signup and view all the answers

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

Palatine bone Signup and view all the answers

What is the function of the lacrimal bone?

Draining tears into the nasal cavity Signup and view all the answers

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

Vomer bone Signup and view all the answers

What is the function of the inferior nasal conchae?

Located in the lateral wall of the nasal cavity Signup and view all the answers

Which bone comprises the entire lower jaw?

Mandible bone Signup and view all the answers

Which bones form the boundary of the anterior cranial fossa?

Frontal, ethmoid, and lesser wing of sphenoid Signup and view all the answers

What structures are located in the middle cranial fossa?

Temporal lobes and cranial nerves Signup and view all the answers

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

Internal carotid artery Signup and view all the answers

What structure is enclosed by the sella turcica?

Pituitary gland Signup and view all the answers

Which bones form the boundary of the posterior cranial fossa?

Temporal and occipital Signup and view all the answers

What is the clinical relevance of the sella turcica?

It is a confined space where pituitary gland tumors can compress neighboring structures Signup and view all the answers

What is the main function of the Maxilla bone?

To support the lower teeth and anchor the muscles of mastication Signup and view all the answers

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

Four Signup and view all the answers

What is the function of the occipital condyle?

To articulate with the cervical spine Signup and view all the answers

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

To provide a dual role of weight support and head movement 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?

Atlas and axis Signup and view all the answers

What is the intracranial region?

The space that contains the brain and its surrounding elements Signup and view all the answers

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

All of the above Signup and view all the answers

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

Three shallow depressions Signup and view all the answers