Skull-Facial Bones and Sinuses
Hom many bones in the cranium Correct Answer: 8
How many facial bones Correct Answer: 14
Four bones of the calvaria? Correct Answer: Frontal, R and L Parietal and Occipital
Four bones of the cranium Correct Answer: R and L Temporal, spheniod, ethmoid
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Skull-Facial Bones and Sinuses
Hom many bones in the cranium Correct Answer: 8
How many facial bones Correct Answer: 14
Four bones of the calvaria? Correct Answer: Frontal, R and L Parietal and Occipital
Four bones of the cranium Correct Answer: R and L Temporal, spheniod, ethmoid
Small horizontal plate of the ethmoid Correct Answer: Cribiform plate
Vertical plate of the ethmoid bone Correct Answer: Perpendicular plate
Structure found in the middle of the sphenoid bone that surrounds the pituitary gland Correct Answer:
Sella tercica
Posterior aspect of the sella tercica Correct Answer: Dorsum sellae
What structure of the sphenoid bone allows for the passage of the optic nerve Correct Answer: Optic
foramen
Which structures of the sphenoid bone help form part of the lateral walls of the nasal cavity? Correct
Answer: Medial and lateral pterygoid
What position/projection best shows the sella tercica? Correct Answer: Lateral
Which aspect of the frontal bone forms the superior aspect of the orbit? Correct Answer: Orbital or
horizontal
Anterior Correct Answer: Bregma
Posterior Correct Answer: Lambda
R & L sphenoid Correct Answer: pterion
R & L Mastoid Correct Answer: asterion
CRanial sutures are classified as Correct Answer: Fibrous
Small irregular bones that sometimes develop in an adult skull Correct Answer: sutural or wormian
(usually found in the lambdoidal suture
What term describes the superior rim of the orbit? Correct Answer: Supraorbital margin (SOM)
, What is the name of the notch that separates the orbital plates from each other? Correct Answer:
Ethmoidal notch
Which cranial bones form the upper lateral walls of the calvarium Correct Answer: Right and Left
parietals
Which bone contains the foramen magnum? Correct Answer: Occipital
A small prominence located on the sqamous portion of the occipital bone called the ----- Correct
Answer: External occipital protuberance
What is the name of the oval processes found on the occipital bone that helps form the occipito-atlantal
joint? Correct Answer: Occipital condyles or lateral condylar portion
Three aspects of the temporal bones Correct Answer: Squamous, mastoid, petrous
What external landmark corresponds with the level of the ptrous ridge? Correct Answer: Top of the ear
TEA
Which opening is in the temporal bone serves as a passageway for nerves of hearing and equilibrium?
Correct Answer: Internal acoustic meatus
Which aspect of the temporal bone is the densest? Correct Answer: Petrous portion
Which structure makes up the cartilaginious external ear? Correct Answer: Auricle or Pinna
Which small membrane marks the begining of the middle ear? Correct Answer: Tympanic membrane
collective term for the small bones of the middle ear? Correct Answer: Auditory ossicles
What structure allows for communication between the nasopharynx and middle ear? Correct Answer:
Eustachian
What is the major function of the structure the eustachian? Correct Answer: Equalize atmospheric
pressure in the middle ear
What structure serves as an opening between the mastoid portion of the temporal bone and the middle
ear? Correct Answer: Aditus
NAme of the thin plate of bone that separates the mastoid air cells from the tympanic membrane?
Correct Answer: Tegmen tympani
Which one of the auditory ossicles is consideered to be the smallest? Correct Answer: stapes
which auditory picks up vibrations Correct Answer: Malleus
Which auditory ossicles looks like a tooth Correct Answer: Incus
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