Week 7 - The spine and abdominal region

Question 1

What are the key joints of the spine and vertebral column?

Answer 1

Atlanto-occipital joint - between atlas and occipital condyles of the skull.
Atlantoaxial joint - between the atlas and the axis
Intervetebral joint
Lumbosacral joint

Question 2

Parts of the spine

Answer 2

7 Cervical
12 thoracic
5 Lumbar
Sacrum
Coccyx

Question 3

Movements of the lumbar spine

Answer 3

Lumbar flexion
Lumbar extension
Lumbar rotation
Lumbar lateral flexion

Question 4

Rectus abdominis

Answer 4

Both sides for lumbar flexion
Right side for lateral flexion to the right
Left side for lateral flexion to the left

Question 5

Obliques

Answer 5

Ext Oblique = Lumbar rotation to opposite side and lateral flexion to same side
Int oblique = Lumbar rotation to same side and lat flexion to same side.

Question 6

Transverse Abdominis

Answer 6

Contributes to forced expiration by pulling abdominal wall inward.
Plays a key role in maintaining abdominal pressure:
Maintaining a stable and balanced abdomen during exercise
Core stability.

Question 7

Posterior Muscles

Answer 7

Extension of all regions of the spine
Erector Spinae: Spinalis, longissimus, iliocostalis.

Question 8

Core Stability

Answer 8

The ability of the muscles of the abdomen to maintain a stable and balanced absomen and pelvis.
Aids performance, solid base for forceful movements of the limbs. Effective transfer of force/power through the core.
Injury risk: core instability may allow unwanted movements of pelvis and lubar spine leading to:
Excessive ROM
Excessive forces on the musculo-skeletal system

Question 8

Quadratus Lumborum

Answer 8

I: 12th rib and L1-4
O: Posterior inner lip of the iliac crest
Stabilisation of the pelvis and lubar spine: core stab and posture.