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WorksheetsCranium Anatomy and Pathology
Total questions: 56
Worksheet time: 28mins
How many cranial bones make up the human skull?
12
8
14
10
How many facial bones are there?
6
8
12
14
Which bones form the skullcap (calvaria)?
Frontal, parietal (2), occipital
Parietal, temporal (2), occipital
Frontal, ethmoid, occipital, sphenoid
Frontal, sphenoid, temporal, parietal
The floor of the cranium is formed by which bones?
Temporal (2), occipital, sphenoid, ethmoid
Frontal, parietal (2), sphenoid
Temporal, parietal, frontal
Sphenoid, frontal, occipital
How many bones does the frontal bone articulate with?
2
4
8
4
Which bone forms the anterior portion of the skullcap and the forehead?
Frontal bone
Parietal bone
Occipital bone
Temporal bone
Which of the following bones articulates with 5 other bones?
Parietal
Frontal
Temporal
Sphenoid
Which of the following bones articulates with 6 other bones?
Frontal
Parietal
Occipital
Sphenoid
Which bone contains the structures of the middle and inner ear?
Occipital
Frontal
Temporal
Parietal
How many parts make up the temporal bone?
2
3
4
1
The dense petrous part of the temporal bone is significant because it:
Contains the mastoid air cells
Houses the organs of hearing and balance
Connects to the frontal bone
Forms the zygomatic arch
The sella turcica is a depression in which cranial bone?
Ethmoid
Temporal
Sphenoid
Frontal
Which gland sits in the sella turcica?
Pituitary gland
Thyroid gland
Adrenal gland
Pineal gland
Which bone articulates with all other cranial bones?
Frontal
Ethmoid
Sphenoid
Parietal
Which cranial bone contains the cribriform plate?
Sphenoid
Ethmoid
Temporal
Occipital
The ethmoid bone is involved in forming all of the following EXCEPT:
Nasal septum
Medial orbital wall
Cranial floor
Zygomatic arch
How many cranial bones does the ethmoid articulate with?
2
4
6
2
Which suture lies between the two parietal bones?
Coronal
Sagittal
Lambdoidal
Squamosal
Which cranial junction is located at the intersection of the sagittal and coronal sutures?
Lambda
Asterion
Pterion
Bregma
The lambdoidal suture separates the parietal bones from the:
Occipital bone
Frontal bone
Temporal bone
Ethmoid bone
The junction point at the meeting of the parietal, temporal, and sphenoid bones is called the:
Bregma
Lambda
Pterion
Asterion
Which part of the ear contains the auricle and external auditory meatus?
Internal ear
Middle ear
External ear
Eustachian tube
The eustachian tube connects the middle ear to the:
Mastoid process
Nasopharynx
Cochlea
Semicircular canals
Which part of the ear houses the cochlea and vestibule?
Middle ear
Inner ear
External ear
Eustachian tube
Which ossicle is shaped like a stirrup?
Malleus
Incus
Stapes
Cochlea
The mastoid air cells are located in which cranial bone?
Sphenoid
Temporal
What type of skull has a width between 75% and 80% of its length?
Dolichocephalic
Mesocephalic
Brachycephalic
Microcephalic
Which positioning line should be parallel to the IR for a lateral skull projection?
MML
IOML
OML
AML
What is the minimum SID recommended for skull radiography?
36 inches
40 inches
48 inches
72 inches
Which projection best demonstrates the petrous ridges in the lower third of the orbits?
AP axial (Towne)
Lateral
PA Caldwell
Parietoacanthial (Waters)
Which projection best shows the sella turcica in profile?
Lateral
Towne
Caldwell
Waters
Which of the following is NOT a common skull positioning error?
Tilt
Rotation
Excessive exposure
Excessive flexion
Air-fluid levels in the sinuses are best seen in which position?
Erect
Prone
Supine
Trendelenburg
What is the typical kVp range for skull imaging with digital systems?
60-75
75-90
80-100
85-105
What landmark lies at the base of the anterior nasal spine?
Acanthion
Nasion
Glabella
Bregma
Which line is used to align the skull for a Waters projection?
OML
MML
IOML
AML
Which type of skull fracture appears as a jagged or irregular lucent line?
Depressed
Linear
Basal
Open
Linear fractures most commonly occur in which skull regions?
Occipital and temporal
Frontal and parietal
Temporal and sphenoid
Frontal and occipital
A depressed skull fracture is best visualized with which imaging technique?
Axial X-ray
Tangential view
Lateral view
Waters view
A depressed skull fracture is sometimes referred to as a:
ping-pong fracture
greenstick fracture
comminuted fracture
linear fracture
Which fracture often shows bruising behind the ears and around the eyes?
Depressed
Linear
Basal skull fracture
Orbital fracture
Which sign may indicate a basal skull fracture?
Fluid in the maxillary sinus
Fluid in the sphenoid sinus
Hematoma in the frontal sinus
Opacity in the mastoid air cells
Metastatic lesions that break down bone are termed:
Osteoblastic
Osteolytic
Sclerotic
Cartilaginous
Which metastatic pattern appears as thickened, dense bone?
Osteoblastic
Osteolytic
Mixed
Erosive
A 'moth-eaten' radiographic appearance suggests which type of metastases?
Osteolytic
Osteoblastic
Mixed osteolytic/blastic
Calcified
Multiple myeloma originates from:
Cartilage
Blood vessels
Bone marrow
Lymph nodes
Which condition is a bacterial infection of the mastoid process?
Otosclerosis
Acoustic neuroma
Cholesteatoma
Mastoiditis
A benign tumor that causes widening of the internal auditory canal is:
Acoustic neuroma
Cholesteatoma
Pituitary adenoma
Osteoma
Which cyst-like benign lesion destroys bone in the mastoid area and can cause hearing loss?
Osteoma
Polyp
Cholesteatoma
Otosclerosis
Which of the following is NOT typically associated with cholesteatoma?
a) Hearing loss
b) Benign tumor
c) Bone destruction
d) Viral origin
What condition is characterized by excessive spongy bone in the middle and inner ear?
Otosclerosis
Paget’s disease
Polyp
Acoustic neuroma
Which imaging modality is preferred for detecting recent bleeding in the brain?
MRI
CT
Ultrasound
MRI is superior for evaluating:
Fluid levels
Bone fractures
Soft tissues and tumors
Metastatic extent
Nuclear medicine is especially useful for evaluating:
Soft tissue tumors
Degree of metastases
Internal bleeding
Pediatric brain infections
Which modality is preferred for detecting hydrocephalus in neonates?
CT
MRI
Nuclear medicine
Ultrasound
Premature closing of cranial sutures is called:
Hydrocephalus
Craniosynostosis
Cholesteatoma
Otosclerosis
