Exam 2 Curvatures Of The Column Flashcards
Why is the posterior curve also called the primary curve
It is the first curve to appear embryologically
What are the adult remnants of the primary curve along the vertebral column
The thoracic or dorsal curve and the pelvic or sacrococcygeal curve
What are the names given to curves that form during development to reverse the direction of regions along the vertebral column
Anterior curve secondary curve compensatory curve
What embryonic event causes the direction of the posterior curve of the vertebral column
The embryonic disc will undergo flexion in a cranial to caudal direction
What are the names of the anterior curve secondary curves and comparators curves
Cervical curve and lumbar curve
What segmental levels form the cervical curve
C2 to T1
What segmental levels form the lumbar curve
T 12 to L5
What is the earliest time of appearance of the cervical curve
The third fetal month
What is the traditional time of appearance of the cervical curve said to be
During the last trimester in utero
What is the time during which the adult cervical curve is said to appear
Within the first year after birth
What infant activities are associated with the developmental of the lumbar curve
Crawling and walking
What is the time of appearance of the lumbar curve
Between 12 and 18 months after birth
What is the location for the cervical kyphosis
Between occiput and C1
What is the location for the apex of the cervical curve
Typically between C4 and C5
What is the name given to the integration of visual and motor pathways associated with holding the head erect
The righting reflex
At what age will the infant begin to hold the head erect
Usually between the third and fourth month after birth
What developmental events are indicated in the formation of the adult cervical curve
Centers for division and equilibrium will appear in the brain musculature
attaching to the skull cervical region and upper thoracic together develops
the head is held up right
the intravertebral disc height becomes greater anterior and posterior
What is the relationship between curve direction and handedness
a right-handed person has a high probability for a right thoracic left lumbar curve combination
What is the time of appearance of the lateral curves
They appear after six years old
What is the vertebral relationship between the lumbar curve and the lumbar enlargement
Lumbar curve T 12 - L5 lumbar enlargement T9- T12
What is the gender bias associated with the lumbar curve convexity
Females have greater convexity of the lumbar curve
Which sense is a requirement for holding the head correct standing sitting and walking
Vision
What developmental events are indicated in the formation of the adult lumbar curve
Crawling will cause the abdomen to put tension on the lumbar region and pulled it forward
muscle development is promoted to compensate for the swayback of the lumbar’s
intravertebral disc height will become greater anterior compared to posterior
walking to further promote muscle in intravertebral disc development
