Deep back muscles

This tutorial covers the identification and functions of deep back muscles, including the splenius, erector spinae, transversal spinalis, and suboccipital muscles. It explains the differences between superficial and deep back muscles, focusing on their innervation and actions. The tutorial also highlights the importance of posture and proprioception in these muscle groups.

What are the primary differences between superficial and deep back muscles?

Discuss the significance of the term 'intrinsic back muscles' in relation to deep back muscles.

Explain the term 'paraspinal muscles' and its relation to deep back muscles.

Describe the actions of the splenius muscles when contracting bilaterally.

What are the three main groups of erector spinae muscles?

What is the significance of the erector spinae muscles in maintaining posture?

What are the actions of the erector spinae muscles when they contract unilaterally?

How do the actions of the transversal spinalis muscles contribute to posture?

What role do the suboccipital muscles play in relation to the vertebral artery?

Identify the innervation source for the deep back muscles.