Lab 6: Axial Skeleton
how many vertebrae comprise the thoracic region of the spine
12
how many bones make up the nasal septum
2
How many ribs make up the rib cage?
24
how many lumbar vertebrae are in the vertebral column
5
how many pairs of ribs are considered false ribs
5
lumbar vertebrae
5 vertebrate region must support weight of head, neck and trunk
how many pairs of ribs articulate directly with the sternum
7
how many pairs of true ribs are there
7
the sella turcica is best described as
A depression.
Identify the best description of the mandibular condyle.
A projection on the mandible
Identify the best description of the mandibular fossa.
A shallow depression
Identify the central portion of the sternum.
Body
identify the recessed area surrounding the crista galli
Cribriform plates
Identify the landmark that serves as a site of attachment for the meninges.
Crista galli
identify the articulation site for the head of a rib
Demi-facet
which of the following characteristics do not belong in the lumbar region
Elongated spinous process
The lumbar vertebrae are part of the appendicular skeleton
FALSE.
The lumbar vertebrae are roughly the same size as vertebrae from the rest of the vertebral column
FALSE.
the ethmoid bone forms the inferior portion of the nasal septum
FALSE.
the ethmoid bone is a facial bone
FALSE.
which of the following categories is the best fit for the zygomatic arch
Facial
which part of the nasal cavity is formed by the nasal septum
Forms the medial wall of the nasal cavity.
identify the location of the ethmoid bone
In between the orbits
Where is the mandibular fossa located?
Inferior surface of the zygomatic process
which two bones form the roof of the mouth
Palitine and Maxillary
Which part of the ethmoid bone forms the nasal septum?
Perpendicular plate
identify the location of the occipital bone
Posterior surface and base of the cranium
identify the primary function of the ethmoidal sinuses
Reduce the weight of the skull
the mandible is not responsible for
Structure of the palate
Which region of the vertebral column is located superior to the thoracic region and which region is inferior to the thoracic region, respectively?
Superiorly: cervical and inferiorly: lumbar
which of the following thoracic vertebrae is the largest
T12
The lumbar vertebrae are found in the lower back
TRUE.
The shape of the spinous process can be used to help determine if a vertebra is from the lumbar region.
TRUE.
the ethmoid bone contains sinuses
TRUE.
the ethmoid bone is part of the axial skeleton
TRUE.
thoracic vertebrae
The 12 pairs of ribs articulate with the vertebrae in this region
identify the cranial nerve that passes through the olfactory foramina
The olfactory nerve (CN I)
what are the major components of the axial skeleton
The school, vertebral column, and thoracic cage
Coccyx Vertebrae
The small bone that articulates with the fifth fused sacral vertebra
cervical vertebrae
The vertebrae of this region include the transverse foramen, which serves as passageways for the vertebral arteries
what fontanel is present at birth and is between the frontal and parietal bones were the frontal, coronal, and sagittal sutures intersect
anterior
which vertebral bone does not have a body
atlas
identify the general location of the zygomatic arch
cheek
identify the part of the mandible that serves as a site of attachment for the temporalis muscle
coronoid process
all of the following are bones that make up the sternum except
costae
The superior nasal concha is a part of which bone?
ethmoid
which of the following bones is not a facial bone
ethmoid
thoracic vertebrae are different from other vertebrae in that they have
facets for the attachments for ribs
identify the location of the sphenoid bone
floor of the skull
where do the auditory tubes enter the skull
foramen lacerum
Name the opening in the occipital bone through which the spinal cord passes.
foramen magnum
which of the following foramen convey a branch of the trigeminal nerve (CN V)
foramen rotundum
the skull is perforated with many holes called_______ where nerves and blood vessels pass to inform the brain
formania
Identify the part of a rib that articulates in the demi-facets of the thoracic vertebra.
head
Name the type of connective tissue that anchors the ribs onto the sternum.
hyaline cartilage
Identify the small hole on the maxillary bone located below the orbit.
infraorbital foramen
which of the following structures or formania can be located in the cervical, thoracic, or lumbar vertebra?
intervertebral foramen, spinous process, superior articular facet, and transverse process
Sacrum Vertebrae
is a single bony element that articulates with the ilium of the pelvic girdle
the hyoid bone is unique because
it does not articulate with any other bones
Identify the small facial bones found in the medial wall of the orbit.
lacrimal
Identify the large suture on the posterior surface of the skull at the border of the occipital bone.
lambdoid
identify the region of the sphenoid bone that contains the optic canal
lesser wings
which of the following is a characteristic of the paranasal sinuses
lighten the skull
Identify the skull bone that can move independent of head movement.
mandible
the temporal and______form the temporomandibular joint
mandible
Which region of the mandible articulates with the cranium?
mandibular condyle
identify the region of the mandible that forms part of the temporomandibular joint
mandibular condyle
identify the region of the temporal bone that articulates with the mandible
mandibular fossa
Name the U shaped border found between the mandibular condyle and the coronoid process.
mandibular notch
Identify the shield shaped top of the sternum.
manubrium
what part of the sternum articulates with the clavicle
manubrium
paranasal sinuses are found in which of the following facial bones
maxillary
which facial bones fuse to form the upper jaw
maxillary
which of the following facial bones contain a sinus
maxillary
Which surface of the maxillary bones fuse together?
medial
which facial bones makeup the central portion of the bridge of the nose
nasal
which of the following locations is not formed by part of the maxillae
nasal septum
which bone forms the posterior floor and wall of the skull
occipital
Identify the area of the occipital bone that articulates with the vertebral column.
occipital condyles
Identify the occipital bone landmark that can not be palpated from the surface of the head.
occipital condyles
Identify the posterior most region of the hard palate.
palatine bone
Which part of the maxillary bones form the roof of the mouth?
palatine processes
identify the part of the ethmoid bone that contributes to the nasal septum
perpendicular plate
which of the following best describes the function of the vertebral curves
providing balance and flexibility to the body
Which region of the vertebral column is immediately inferior to the lumbar region?
sacral
The nasal septum occupies which anatomic plane?
sagittal
identify the region of the sphenoid bone in contact with the pituitary gland
sella turcica
The pituitary gland is housed in the
sella turcica of the sphenoid bone
identify the region on the zygomatic bone that forms part of the zygomatic arch
temporal process
what joins the temporal bone's zygomatic process to complete the zygomatic arch
temporal process
Which region of the vertebral column is immediately superior to the lumbar region?
thoracic
identify the articulation site for a tubercle of a rib
transverse costal facet
the sphenoid bone contains a sinus
true
identify the region of a rib that articulates with the transverse process of a vertebra
tubercle
which bone forms the inferior portion of the nasal septum
vomer
What part of the sternum is palpated prior to giving CPR?
xiphoid process
Identify the 2 bones that make up the zygomatic arch.
zygomatic bone and temporal bone
what is the anatomical name for the facial bones known as "cheekbones"
zygomatic bones
identify the region on the temporal bone that forms much of the zygomatic arch
zygomatic process
