Cranial Bones Anatomy

What is the function of the hard palate?

To form the prominence of the cheeks
To empty into the nasal cavity
To contain the alveoli for the maxillary teeth
To separate the nasal cavity from the oral cavity (correct)

What is the condition called when the fusion of the maxillary bones fails?

Nasal septum defect
Zygomatic bone disorder
Cleft palate (correct)
Orbital fissure

Which of the following bones does the maxilla not articulate with?

Temporarily
Mandible (correct)
Frontal
Sphenoid

What is the location of the maxillary sinus?

In each maxilla (A) Signup and view all the answers

Which part of the occipital bone allows you to nod your head 'yes'?

Occipital condyles (A) Signup and view all the answers

Which bones form the prominences of the cheeks?

Zygomatic bones (A) Signup and view all the answers

What is the function of the ligamentum nuchae?

To support the head (A) Signup and view all the answers

What is the function of the alveolar process of the maxilla?

To contain the alveoli for the maxillary teeth (B) Signup and view all the answers

Which bone is the keystone of the cranial floor?

Sphenoid bone (B) Signup and view all the answers

What is the main function of the protrusions and depressions on the internal surfaces of the parietal bones?

To accommodate blood vessels supplying the dura mater (D) Signup and view all the answers

What is the function of the greater wings of the sphenoid bone?

To form the anterolateral floor of the cranium (A) Signup and view all the answers

What forms the zygomatic arch?

The zygomatic process of the temporal bone and the temporal process of the zygomatic bone (A) Signup and view all the answers

What is the characteristic of the ethmoid bone?

It is a delicate bone (B) Signup and view all the answers

What is the function of the styloid process?

To serve as an attachment point for muscles and ligaments of the tongue and neck (C) Signup and view all the answers

What is the location of the ethmoid bone?

Anterior to the sphenoid and posterior to the nasal bones (A) Signup and view all the answers

What is the name of the large hole in the inferior part of the occipital bone?

Foramen magnum (D) Signup and view all the answers

What passes through the foramen magnum?

The medulla oblongata, the vertebral and spinal arteries, and the accessory (XI) nerve (C) Signup and view all the answers

What forms the posterior part and most of the base of the cranium?

The occipital bone (B) Signup and view all the answers

Which part of the mandible articulates with the mandibular fossa and articular tubercle of the temporal bone to form the temporomandibular joint?

Condylar process (D) Signup and view all the answers

What is the approximate location of the mental foramen in relation to the teeth?

Inferior to the second premolar tooth (A) Signup and view all the answers

What is the main characteristic of the mandible that distinguishes it from other skull bones?

It is the only movable skull bone (excluding the auditory ossicles) (A) Signup and view all the answers

What is the name of the depression between the coronoid and condylar processes of the mandible?

Mandibular notch (A) Signup and view all the answers

What is the term for the clicking or popping noise when opening or closing the mouth, which is a symptom of TMJ syndrome?

Articular clicking (C) Signup and view all the answers

What is the term for the condition characterized by dull pain around the ear, tenderness of the jaw muscles, and limited or abnormal opening of the mouth?

TMJ syndrome (B) Signup and view all the answers

What is the main function of the hyoid bone?

To support the tongue and provide attachment sites for muscles (D) Signup and view all the answers

What is the approximate length of the vertebral column in an average adult male?

71 cm (C) Signup and view all the answers

What is the main function of the vertebral column?

To provide attachment sites for muscles and bones (A) Signup and view all the answers

What is the main difference between the vertebral column and the spinal cord?

The vertebral column is made up of bones, while the spinal cord is made up of nervous tissues (A) Signup and view all the answers

What are the four main curves of the vertebral column?

Cervical, Thoracic, Lumbar, and Sacral (B) Signup and view all the answers

What is NOT a function of the vertebral column?

To protect the heart and lungs (A) Signup and view all the answers