7.2 The Axial Skeletal system Flashcards
The wrist bones are generally cube-shaped; as a result, they are classified as
Short Bones
The sternum and the ribs would be classified as
The sternum and ribs are examples of flat bones. These thin bones function in protection and serve as attachment surfaces for muscles.
What type of bone is seen most frequently in the appendages (upper limb and lower limb)?
Long bones are the most common bones found in the appendicular skeleton. Examples of long bones include humerus, ulna, radius, femur, tibia, fibula, metacarpals, metatarsals, and phalanges.
A vertebra would be classified as
Select answer from the options below
irregular bones.
short bones.
flat bones.
long bones.
Irregular bones
You’re looking at a bone that has a diaphysis and two epiphyses. What kind of bone is this?
Select answer from the options below - Correct!
Long bone
Flat bone
Irregular bone
Short bone
Long Bones
Long bones are longer than they are wide and have a diaphysis (shaft) and a variable number of epiphysis (ends). Examples of long bones include the humerus, ulna, radius, femur, tibia, fibula, metacarpals, metatarsals, and phalanges.
If the palatine processes of the maxillary bones fail to unite during embryonic development, a condition arises called
Select answer from the options below - Correct!
deviated nasal septum.
TMJ dysfunction.
cleft palate.
sinusitis.
Cleft palate
Identify which of the following bones are paired.
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Vomer
Hyoid
Nasal bones
Mandible
Nasal Bones
How many facial Bones?
14
`There are pairs (2 each) of the nasal bones, zygomatic bones, maxillae, lacrimal bones, palatine bones, and inferior nasal concha bones. The mandible, hyoid, and the vomer are unpaired
Which of the following is a paired skull bone that helps form the face?
Select answer from the options below - Incorrect!
parietal
mandible
lacrimal
vomer
The paired lacrimal bones are facial bones that form a portion of the medial wall of both orbits. The parietal bones are also paired, but they form part of the cranial cavity and not the face. The vomer and the mandible are facial bones, but they are single bones
Which of the following should not be grouped in the same category as the other bones listed?
The frontal, ethmoid, and sphenoid bones are cranial bones, while zygomatic bones are facial bones.
Which of the following is a paired skull bone that functions to protect the brain?
Select answer from the options below - Incorrect!
parietal
occipital
sphenoid
zygomatic
Parietal Bone
Identify which of the following facial bones are unpaired.
Select answer from the options below - Correct!
Zygomatic
Vomer
Palatine
Lacrimal
There are 14 facial bones. There are pairs (2 each) of the nasal bones, zygomatic bones, maxillae, lacrimal bones, palatine bones, and inferior nasal concha bones. The mandible and the vomer are unpaired.
Which of the following is the first secondary curve of the vertebral column to develop?
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sacral
lumbar
cervical
thoracic
when an infant begins to hold its head erect, the anteriorly convex cervical curve develops
If you examine a vertebra and determine it contains three foramina, which type of vertebra must it be?
Select answer from the options below - Correct!
sacral
thoracic
cervical
lumbar
Cervical
The cervical vertebrae contains three foramina, one vertebral and two transverse, which allow the passage of the spinal cord, vertebral artery, vertebral vein, and nerve fibers. The thoracic and lumbar vertebrae each have one vertebral foramina.
The vertebral column consists of?
bone and connective tissue;
the spinal cord that it surrounds and protects consist of ?
nervous and connective tissue
the adult vertebral column typically contains? 26 vertebrae
26 vertebrae
Are the sacral and Coxxylegeal movable vertebras?
No the are not, only cervical, thoracic, and lumbar
Which normal curves are convex
cervical and lumbar curves
Which normal cubes are concave?
thoracic and sacral curves are concave
Later, when the child sits up, stands, and walks, which part of the vertebrae convex
the anteriorly convex lumbar curve devel- ops.
the anteriorly convex lumbar curve devel- ops.
Each disc of the intervertebral discs consist of
fibrocartilage called the annulus fibrosus
Inside of the annulus fibrosis is a
Nucleus Pulposus
Which of the following vertebral processes are used to form joints with other vertebrae?
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superior and inferior articulars
spinous and superior articular
transverse and superior articular
transverse and inferior articular
The two superior articular processes of a vertebra articulate with the two inferior articular processes of the vertebra located directly above it. Similarly, the two inferior articular processes of a vertebra articulate with the two superior articular processes of the vertebra below it.`
Which of the normal curves of the vertebral column is the last to develop?
Select answer from the options below - Correct!
thoracic
cervical
lumbar
sacral
Lumbar
The vertebra, ____, has a process called a dens that allows for rotational movement.
Select answer from the options below - Correct!
T1
C2
C1
C7
C2
The second cervical vertebra also called C2 and the axis, contains a projection on its anterior side called the dens (or odontoid process) where the skull and the first cervical vertebra (C1 or the atlas) connect and form a pivot point that allows the head to rotate such as to signify “no.”
Where can you find short bones
Carpel (wrist) and tarsals (ankles)
Are short bones mostly compact or spongy bone?
They consist of both compact and spongy bone. However they are more spongy and have a thin layer of compact bone on the outer surfaces.
How are the appearances of flat bones?
Thin and have nearly parallel sides
Flat bone function?
Flat bones afford considerable protection and provide extensive areas
for muscle attachment.
flat bones
Flat bones include the cranial bones, which
protect the brain; the sternum (breastbone) and ribs, which protect
organs in the thorax; and the scapulae (shoulder blades).
