Accessory Muscles of the Vertebral Column Flashcards Preview

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Flashcards in Accessory Muscles of the Vertebral Column Deck (6)
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1
Q

interspinalis is paired in which regions of the spine?

A

cervical and lumbar regions

2
Q

based on the density of muscle spindles what is the proposed function of the interspinalis?

A

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

3
Q

which of the cervical intertransversarii is innervated by dorsal rami of cervical spinal nerves?

A

posterior medial belly, cervical intertransversarii

4
Q

what is the origin of the medial belly of the lumbar intertransversarii?

A

accessory process of transverse process L1-L4 and mammillary process of superior articular process L1-L4

5
Q

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

A

intertransversarii

6
Q

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

A

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