Chapter 8
The cranial cavity encloses which of the following?
brain
The _______ canal is the passage for the carotid artery.
carotid
The lateral walls of the nasal cavity give rise to scroll-like bones called the nasal ________ .
conchae
The largest cavity in the skull that encloses the brain is the ______ cavity.
cranial
The perforated part of the ethmoid bone that forms the roof of the nasal cavity is called the ________ plate.
cribriform
The crista galli is an attachment site for the ______.
dura mater
The ear canal is also called the ______.
external acoustic meatus
The smooth flat area of the bone marked on the figure is called the
glabella
The palatine bones forms part of the ______.
hard palate
The ______ is an irregular opening for the jugular vein just medial to styloid process.
jugular foramen
The _________ bone, located between the maxillary and ethmoid bone, forms part of the medial wall of the orbit.
lacrimal
The ______ foramen is a hole that provides passage for a nerve, artery, and vein above the margin of the eye.
supraorbital
The bony ridge marked on the figure is called the
supraorbital Margin
The ______ process of the zygomatic bone forms part of the zygomatic arch.
temporal
The _________ lines indicated in the figure are the site of attachment for the temporalis muscle.
temporal
The bone indicated in the figure is the
temporal bone
The temporal process of the ________ bone forms part of the zygomatic arch.
zygomatic
Only one of the pairs of nasal conchae is not part of the ethmoid bones. Which one is its own bone?
Inferior
Name the bony structure marked on the figure.
Inferior nasal concha
Which opening is marked on the figure?
Infraorbital foramen
Petrous part
Internal acoustic meatus, carotid canal, and jugular foramen
Identify the opening indicated in the figure.
Jugular foramen
Which features are found in the petrous part of the temporal bone?
Jugular foramen Carotid canal Internal acoustic meatus
Identify the bone indicated on the figure.
Lacrimal bone
Which wing of the sphenoid bone forms the posterior margin of the anterior cranial fossa?
Lesser wing
The foramen ________ is a large hole where the spinal cord enters the cranium.
Magnum
The opening in the occipital bone through which the spinal cord exits the cranial cavity is the foramen __________
Magnum
The indicated bone is the
Mandible
Identify the opening indicated in the figure.
Mandibular fossa
The mandibular condyle articulates with which part of the temporal bone?
Mandibular fossa
Which of following is a true statement and explains why the number of bones varies with age?
Many bones fuse together during development, resulting in fewer bones in the adult.
What is the prominent bony process behind and below the ear that is filled with small air sinuses and serves as an attachment for a major neck muscle?
Mastoid
Mastoid part
Mastoid process and mastoid foramen
The infraorbital foramen is in which bone?
Maxilla
Another term for a canal through a bone is a(n) ______.
Meatus
What is the name of the bony feature labeled "A" in this picture?
Medial pterygoid plate
The _______bones form the bridge of the nose and support the cartilage that forms the lower portion.
Nasal
Name the scroll-like bones that project into the nasal cavity.
Nasal conchae
Identify the bony structure indicated in the figure.
Occipital condyle
Where does the skull rest on the vertebral column?
Occipital condyles
The bone indicated in the figure is the ___________ bone
Palatine
The sagittal, squamous, coronal, and lambdoid sutures border the ______ bone.
Parietal
Which cranial bones are paired?
Parietal and temporal
Which best describes the cribriform plate?
Perforated bone area that forms the roof of the nasal cavity
What structure sits in the sella turcica?
Pituitary gland
The cerebellum is contained within which cranial fossa?
Posterior
Which type of bone forms within a tendon due to stress?
Sesamoid
The foramen magnum is a hole for the passage of which of the following?
Spinal cord
What structure passes through the foramen magnum?
Spinal cord
List the sutures surrounding the parietal bones.
Squamous Coronal Sagittal Lambdoid
Identify the bony structure indicated in the figure.
Styloid
Which process on the temporal bone provides a site of attachment for muscles of the tongue, pharynx, and hyoid bone?
Styloid process
Which features are found in the tympanic part of the temporal bone?
Styloid process External acoustic meatus
Identify the opening indicated in the figure.
Stylomastoid foramen
Which is a passage in the temporal bone for the facial nerve?
Stylomastoid foramen
Name the term used to describe a groove in which is located a tendon, nerve, or blood vessel.
Sulcus
Which of the following extends horizontally from the external occipital protuberance?
Superior nuchal line
Name the hole marked on the figure.
Supraorbital foramen
What is the name of the bony ridge indicated in the figure?
Supraorbital margin
The thickened lines on the side of the skull that provide attachment points for the temporalis muscle are called which of the following?
Temporal lines
The axial skeleton can be defined as which of the following?
The bones of the supporting central axis of the body
Head
The prominent expanded end of a bone, sometimes rounded
Within the nasal septum, the ________ plate is part of the ethmoid bone.
perpendicular
The suture between the parietal bones is the ______ suture.
sagittal
The ___________ turcica is a saddle-like prominence in the body of the sphenoid bone that houses the pituitary gland.
sella
The patella is an example of ________ a bone, one that forms within a tendon due to stress.
sessamoid
The inferior nuchal line is an attachment site for ______.
some deep neck muscles
A sharp, slender, or narrow process of a bone is called a ______.
spine
Choose the bone that, along with the ethmoid, forms the nasal septum.
Vomer
How many bones does the skeleton typically contain at birth?
270
Condyle
A rounded knob that articulates with another bone
Facet
A smooth, flat, articular surface
Which part of the maxilla consists of raised portions of bone that lie between the roots of the teeth?
Alveolar process
What are the names of the three cranial fossae?
Anterior, middle, and posterior
The skull, vertebral column, and rib cage comprise the _____ skeleton.
Axial
Which region of the occipital bone is indicated in the figure?
Basilar
The skullcap that forms the roof and walls of the skull is called which of the following?
Calvaria
Identify the openings indicated in the figure.
Carotid canal
Which term refers to the bony structure that surrounds the brain?
Cranium
Which bones are classified as cranial bones?
Ethmoid Parietal Temporal Sphenoid Frontal Occipital
List the paranasal sinuses.
Ethmoid Sphenoid Frontal Maxillary
Tympanic part
External acoustic meatus and styloid process
Which of the following is a prominent median projection on the occipital bone?
External occipital protuberance
Which foramina of the sphenoid bone are passage ways for branches of the trigeminal nerve?
Foramen rotundum and foramen ovale
List the foramina found in the sphenoid bone.
Foramen rotundum, foramen ovale, foramen spinosum, foramen lacerum
The bone indicated in the figure is the
Frontal bone
Name the smooth flat area of the bone marked on the figure.
Glabella
Which wing of the sphenoid bone forms one half of the middle cranial fossa and a part of the lateral surface of the cranium?
Greater wing
The maxilla and palatine bones come together to form which of the following?
Hard palate
Which term refers to a prominent expanded end of a bone that is sometimes rounded?
Head
Which process of the temporal bone extends anteriorly to form part of the zygomatic arch?
Zygomatic
Which features are found in the squamous part of the temporal bone?
Zygomatic process Mandibular fossa
Squamous part
Zygomatic process and mandibular fossa
The part of the maxilla called the process consists of points of bones that fill the spaces between the bases of teeth.
alveolar
A tooth socket is a(n) _______.
alveolus
The region of the bone indicated in the figure is the ___________ of the mandible.
angle
The limb bones and their girdles comprise the ______ skeleton.
appendicular
The bony process indicated in the figure is the ____________ process.
mastoid
The bony bump marked on the figure is the _________protuberance.
mental
The __________ processes of the maxillary bones form the anterior 2/3 of the hard palate.
palatine