Upper Limb

Question 1

What are the two groups of intrinsic back muscles?

Answer 1

Erector spinae and transversospinalis muscles.

Question 2

Which section of an intervertebral joint consists of concentric lamellae?

Answer 2

Anulus fibrosus

Question 3

Which section of an intervertebral joint has a high water content?

Answer 3

Nucleus pulposus

Question 4

List the four extrinsic back muscles you have covered in class.

Answer 4

• Trapezius
• Levator scapulae
• Rhomboid minor
• Rhomboid major
• Latissimus dorsi

Question 5

Erector spinae work both concentrically and eccentrically. True or false?

Answer 5

True.

They work concentrically (during extension) and eccentrically (during flexion).

Question 6

Erector spinae muscles are deep to the transversospinalis muscles. True or false?

Answer 6

False. Erector spinae muscles are SUPERFICIAL to transversospinalis muscles.

Question 7

Erector spinae muscles are long and powerful, where as transversospinalis muscles are short. True or false?

Answer 7

True.