Accessory muscles of the vertebral column

Question 1

Interspinalis is paired in which regions of the spine

Answer 1

Cervical and lumbar regions

Question 2

Based on the density of muscle spindles what is the proposed function of the interspinalis

Answer 2

Acts as a proprioceptive transducer in conjunction with intertransversarii to coordinate the smooth movement of the spine and maintain appropriate posture

Question 3

Which of the cervical intertransversarii is innervated by dorsal rami of cervical spinal nerves

Answer 3

Posterior medial belly

Cervical intertransversarii

Question 4

What is the insertion of the medial belly of the lumbar intertransversarii

Answer 4

Accessory process of transverse process of L1-L4

Mammillary process of superior articular process L1-L4

Question 5

Which muscle group is innervated by both dorsal rami and ventral rami of spinal nerves

Answer 5

Intertransversarii

Question 6

Based on the density of muscle spindles what is the proposed function of the interransversarii

Answer 6

Acts as a proprioceptive transducer in conjunction with interspinalis to coordinate the smooth movement of the spine and to maintain appropriate posture