Final Accessory Muscle Of The Vertebral Column

Question 1

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

Answer 1

Accessory process if transverse process L1-L4

Mammillary process of superior articular process L1-L4

Question 2

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

Answer 2

Medial belly lumbar intertransversarii

Question 3

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

Answer 3

Intertransversarii

Question 4

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

Answer 4

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

Question 5

Interspinalis is paired in which regions of the spine

Answer 5

Cervical and lumbar regions

Question 6

At what locations will intersoinalis be absent along the spine

Answer 6

T3 through T4 down to T 10 through T 11

Question 7

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

Answer 7

Posterior medial belly cervical intertransversarii

Question 8

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

Answer 8

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