Curves of Spinal Column Flashcards Preview

Spinal Anatomy > Curves of Spinal Column > Flashcards

Flashcards in Curves of Spinal Column Deck (24):
1

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

Embryonic disc will undergo flexion in a cranial to caudal direction

2

Why is the posterior curve also called the primary curve?

It is the first curve to appear embryologically

3

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

Thoracic or dorsal curve
Pelvic or sacrococcygeal curve

4

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

5

What are the names of the anterior curves, secondary curves, and compensatory curves?

Cervical curve
Lumbar curve

6

What segmental levels form the cervical curve?

C2-T1

7

What segmental levels form the lumbar curve?

T12 - L5

8

What is the earliest time of appearance of the cervical curve?

Third fetal month

9

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

During the last trimester in utero

10

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

Within the first year after birth

11

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

Centers for vision and equilibrium will appear in the brain
Musculature attaching the skull, cervical region, and upper thorax together develop
Head is held upright
Intervertebral disc height becomes greater anterior than posterior

12

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

Usually between the third and fourth month after birth

13

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

Righting reflex

14

What is the location of the apex of the cervical curve?

Typically between C4 and C5

15

What is the location for the cervical kyphosis?

Between occiput and C1

16

What is the vertebral relationship between the cervical curve and the cervical enlargement?

Cervical curve C2-T1
Cervical enlargement C3-T1

17

What is the time of appearance of the lumbar curve?

Between 12 and 18 months after birth

18

What infant activities are associated with the development of the lumbar curve?

Crawling and walking

19

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 pulls it forward
Muscle development is promoted to compensate for the swayback of the lumbars
Intervertebral disc height will become greater anterior compared to posterior
Walking will further promote muscle and intervertebral disc development

20

Which sense is a requirement for holding the head erect, standing, sitting, and walking?

Vision

21

What is the gender bias associated with lumbar curve convexity?

Females have a greater convexity of the lumbar curve

22

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

Lumbar curve T12-L5
Lumbar enlargement T9-T12

23

What is the time of appearance of the lateral curves?

Appear after age 6

24

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