Exam 2: BIOL 2320 USU Malan
What is the function of the skeleton? - correct answer ✔✔support, protection, movement, and body
framework
How many bones are in the skeleton? - correct answer ✔✔206 (depends on the individual due to fusion)
What bones make up the axial skeleton? - correct answer ✔✔Skull (auditory ossicles and hyoid bone),
vertebral column, and rib cage
What are the cranial bones? - correct answer ✔✔frontal, 2 parietal, 2 temporal, occipital, sphenoid, and
ethmoid
What is the domelike portion of the skull called? - correct answer ✔✔Calvaria
What composes the nasal septum? - correct answer ✔✔vomer
perpendicular plate of ethmoid bone
septal cartilage
What are the four paranasal sinuses? - correct answer ✔✔Sphenoidal
Maxillary
Frontal
Ethmoidal
What is the purpose of sinuses? - correct answer ✔✔Sound of voice, lighten weight of skull,
moisten/humidify/clean air you breathe
The frontal bone contributes to the: - correct answer ✔✔Anterior roof of the cranium
The Forehead
, A portion of the nasal cavity roof
The superior arch of the bony orbits
The parietal bones are separated by: - correct answer ✔✔sagittal suture
The temporal bone is separated from the parietal bone by: - correct answer ✔✔squamous suture
Describe the petrous region of the temporal bone: - correct answer ✔✔Houses the structures of the
middle and inner ear.
Contains the carotid canal that allows entry of the internal carotid artery into the cranial cavity.
The foramen lacerum is located between the petrous region, the sphenoid bone, and occipital bone.
Holds the jugular foramen that allows blood to drain from the brain via the internal jugular vein.
Describe the mastoid region of the temporal bone: - correct answer ✔✔Rounded projection that can be
easily felt as the bony knob behind your earlobe.
Filled with many small, interconnected air cells that communicate with the middle ear.
Describe the squamous region of the temporal bone: - correct answer ✔✔Lateral flat surface of each
temporal bone immediately inferior to the squamosal suture.
Zygomatic process forms the posterior portion of the zygomatic arch.
Mandibular fossa is also in this region and receives the articulating condyle of the mandible, referred to
as temporomandibular joint.
Describe the tympanic region of the temporal bone: - correct answer ✔✔Small area surrounding the
outer entrance into the external auditory canal.
Inferior to this opening is the styloid process that projects downward. (serves as attachment site for
muscles associated with the tongue and hyoid bone)
The occipital bone forms the: - correct answer ✔✔single bone in the back and much of the base of the
skull
What is the function of the skeleton? - correct answer ✔✔support, protection, movement, and body
framework
How many bones are in the skeleton? - correct answer ✔✔206 (depends on the individual due to fusion)
What bones make up the axial skeleton? - correct answer ✔✔Skull (auditory ossicles and hyoid bone),
vertebral column, and rib cage
What are the cranial bones? - correct answer ✔✔frontal, 2 parietal, 2 temporal, occipital, sphenoid, and
ethmoid
What is the domelike portion of the skull called? - correct answer ✔✔Calvaria
What composes the nasal septum? - correct answer ✔✔vomer
perpendicular plate of ethmoid bone
septal cartilage
What are the four paranasal sinuses? - correct answer ✔✔Sphenoidal
Maxillary
Frontal
Ethmoidal
What is the purpose of sinuses? - correct answer ✔✔Sound of voice, lighten weight of skull,
moisten/humidify/clean air you breathe
The frontal bone contributes to the: - correct answer ✔✔Anterior roof of the cranium
The Forehead
, A portion of the nasal cavity roof
The superior arch of the bony orbits
The parietal bones are separated by: - correct answer ✔✔sagittal suture
The temporal bone is separated from the parietal bone by: - correct answer ✔✔squamous suture
Describe the petrous region of the temporal bone: - correct answer ✔✔Houses the structures of the
middle and inner ear.
Contains the carotid canal that allows entry of the internal carotid artery into the cranial cavity.
The foramen lacerum is located between the petrous region, the sphenoid bone, and occipital bone.
Holds the jugular foramen that allows blood to drain from the brain via the internal jugular vein.
Describe the mastoid region of the temporal bone: - correct answer ✔✔Rounded projection that can be
easily felt as the bony knob behind your earlobe.
Filled with many small, interconnected air cells that communicate with the middle ear.
Describe the squamous region of the temporal bone: - correct answer ✔✔Lateral flat surface of each
temporal bone immediately inferior to the squamosal suture.
Zygomatic process forms the posterior portion of the zygomatic arch.
Mandibular fossa is also in this region and receives the articulating condyle of the mandible, referred to
as temporomandibular joint.
Describe the tympanic region of the temporal bone: - correct answer ✔✔Small area surrounding the
outer entrance into the external auditory canal.
Inferior to this opening is the styloid process that projects downward. (serves as attachment site for
muscles associated with the tongue and hyoid bone)
The occipital bone forms the: - correct answer ✔✔single bone in the back and much of the base of the
skull
