CTMR 405 Sectional Anatomy Of
Head study Set Exam
What are the four imaging planes used in CT? - Answer 1.) Axial
2.) Coronal
3.) Sagittal
4.) Oblique
What bones make up the skull? - Answer Frontal bone, parietal bone (2), occipital bone,
temporal bone (2), sphenoid, ethmoid
The organs of hearing and equilibrium are housed in? - Answer Temporal bones
(specifically petrous portion)
The mastoid portion of the temporal bones contain mastoid sinuses which are located __
and __ to the EAM? - Answer posterior and inferior
Why is the sphenoid bone considered an anchor or keystone? - Answer It articulates
with all 8 cranial bones
The sphenoid sinuses are located where? - Answer Body of the sphenoid, and inferior to
the sella turcica
Which foramens are located on the greater wing of the sphenoid? - Answer Foramen
ovale, spinosum, and rotundum
The sella turcica houses what? - Answer pituitary gland
What is a bony structure within the posterior cranial fossa that extends to the foramen
magnum? - Answer Clivus
Which cranial bone lies between the orbits and forms part of the anterior cranial fossa,
nasal wall, and orbital walls? - Answer Ethmoid bone
Horizontal portion of the ethmoid bone is termed? - Answer Cribriform plate
The cribriform plate contains small foramina for? - Answer olfactory nerves
The crista galli serves as an attachment site for what? - Answer The falx cerebri
What fold of the dura mater that separates the hemispheres of the cerebellum? - Answer
falx cerebri
, What separates the nasal cavity into right and left halves (helps to form the nasal
septum below the cribriform plate) and joins with the vomer and septal cartilage? -
Answer Perpendicular plate of the ethmoid
What are the facial bones? - Answer lacrimal (2), maxilla (2), nasal bones (2), vomer,
palatines (2), zygomatic (2), mandible, inferior nasal conchae (2).
Maxillary sinuses are also called? - Answer Antrum of Highmore
The vomer forms what? - Answer posterior part of the nasal septum
The palatines form what? - Answer posterior part of the hard palate
The foramen are located in the petrous portion of temporal bone? - Answer Internal and
external auditory canal and carotid canal
What foramen is located between the occipital, temporal, and sphenoid bones? -
Answer lacerum
What nerves/veins does the jugular vein transmit? - Answer internal jugular vein,
glossopharyngeal (IX nerve), vagus (X), and spinal accessory (XI nerve).
Where is the jugular foramen located in relationship to the carotid foramen? - Answer
Posteriorly
What are the 4 sinuses? - Answer Frontal, ethmoidal, sphenoidal, and maxillary
Where do frontal sinuses drain? - Answer Into the middle meatus of the nasal cavity
What are the 12 pairs of cranial nerves? - Answer Olfactory (I), Optic (II), Oculomotor
(III), Trochlear (IV), Trigeminal (V), Abducens (VI), Facial (VII),
Acoustic/vestibulocochlear (VIII), Glossopharyngeal (IX), Vagus (X), Accessory (XI),
Hypoglossal (XII)
White matter consists of? - Answer Myelinated axions (nerve fibers)
Gray matter consists of? - Answer Nerve cell bodies and unmyelinated fibers
White and gray matter that is grouped together to form regions is called? - Answer Basal
ganglia
What are the layers of the meninges from superficial to deep? - Answer dura mater,
arachnoid mater, pia mater
What layer of the meninges contains CSF? - Answer subarachnoid space
What are the regions of the brain from largest to smallest? - Answer Cerebrum,
cerebellum, and the brainstem
What are the parts of the brain stem? - Answer midbrain, pons, medulla oblongata