Exam 2 Curvatures Of The Column

Question 1

Why is the posterior curve also called the primary curve

Answer 1

It is the first curve to appear embryologically

Question 2

What are the adult remnants of the primary curve along the vertebral column

Answer 2

The thoracic or dorsal curve and the pelvic or sacrococcygeal curve

Question 3

What are the names given to curves that form during development to reverse the direction of regions along the vertebral column

Answer 3

Anterior curve secondary curve compensatory curve

Question 4

What embryonic event causes the direction of the posterior curve of the vertebral column

Answer 4

The embryonic disc will undergo flexion in a cranial to caudal direction

Question 5

What are the names of the anterior curve secondary curves and comparators curves

Answer 5

Cervical curve and lumbar curve

Question 6

What segmental levels form the cervical curve

Answer 6

C2 to T1

Question 7

What segmental levels form the lumbar curve

Answer 7

T 12 to L5

Question 8

What is the earliest time of appearance of the cervical curve

Answer 8

The third fetal month

Question 9

What is the traditional time of appearance of the cervical curve said to be

Answer 9

During the last trimester in utero

Question 10

What is the time during which the adult cervical curve is said to appear

Answer 10

Within the first year after birth

Question 11

What infant activities are associated with the developmental of the lumbar curve

Answer 11

Crawling and walking

Question 12

What is the time of appearance of the lumbar curve

Answer 12

Between 12 and 18 months after birth

Question 13

What is the location for the cervical kyphosis

Answer 13

Between occiput and C1

Question 14

What is the location for the apex of the cervical curve

Answer 14

Typically between C4 and C5

Question 15

What is the name given to the integration of visual and motor pathways associated with holding the head erect

Answer 15

The righting reflex

Question 16

At what age will the infant begin to hold the head erect

Answer 16

Usually between the third and fourth month after birth

Question 17

What developmental events are indicated in the formation of the adult cervical curve

Answer 17

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

Question 18

What is the relationship between curve direction and handedness

Answer 18

a right-handed person has a high probability for a right thoracic left lumbar curve combination

Question 19

What is the time of appearance of the lateral curves

Answer 19

They appear after six years old

Question 20

What is the vertebral relationship between the lumbar curve and the lumbar enlargement

Answer 20

Lumbar curve T 12 - L5 lumbar enlargement T9- T12

Question 21

What is the gender bias associated with the lumbar curve convexity

Answer 21

Females have greater convexity of the lumbar curve

Question 22

Which sense is a requirement for holding the head correct standing sitting and walking

Answer 22

Vision

Question 23

What developmental events are indicated in the formation of the adult lumbar curve

Answer 23

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