Thoracic Region-Atypical Thoracic T9

Question 1

Which muscles attach to the transverse process of T9?

Answer 1

longissimus thoracis, semispinalis thoracis, multifidus, rotator longus and brevis, intertransversarii, levator costarum longus and brevis

Question 2

How many synovial joints are typically present at T9?

Answer 2

ten

Question 3

Identify the synovial joint surfaces typicaly present on T9

Answer 3

two superior costal demi-facets, two inferior costal demi-facets, two superior articular facets, two inferior articular facets and two transverse costal facets

Question 4

How many synovial joint surfaces for ribs are typically present on T9?

Answer 4

six

Question 5

What is the generic apperance of the spinous processes of T9?

Answer 5

shorter and more horizontal

Question 6

What muscles attach to the spinous process of T9?

Answer 6

trapezius, latissimus dorsi, multifidus, rotator longus and brevis, and interspinalis

Question 7

Which muscles are conspicuously absent at the T9 spinous process?

Answer 7

spinalis and semispinalis