Accessory Muscles of the Vertebral Column

Question 1

At what locations will interspinalis be absent along the spine?

Answer 1

T3-T4 down to T10-T11

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 conduction with intertransversarii to coordinate the smooth movement of the spine and to maintain appropriate posture

Question 3

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

Answer 3

Intertransversarii

Question 4

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

Answer 4

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