10 Questions
What are the three main types of motion of the spine discussed in the text?
Flexion, extension, lateral bends
What is the role of the Rotatores and Intertransversarii muscles in the spine?
Stabilizers, extensors, and rotators
Why is the Longissimus Lumborum muscle important in the spine?
It has the largest cross-sectional area with high moment arms in anterior and posterior motion
What is the purpose of the Ligamentum Flavum in the spine?
Help maintain upright posture, prevent hyperflexion, restrict motion in multiple planes
What is the main purpose of the Posterior Longitudinal Ligament in the vertebral column?
Prevent hyperflexion
How does the Supraspinous Ligament contribute to lumbar stability?
Helps restrict flexion
What is the composition of the Annulus Fibrosus in the intervertebral disc?
Mostly type 1 collagen
Which muscle helps create a rounding effect during trunk flexion and assists in lateral flexion?
External oblique and Internal oblique
What role does the Psoas muscle play in hip flexion and lumbar stability?
Acts as a hip flexor and helps control lumbar spine stability
During which stage of embryonic development does the spine form, leaving the notochord only in the nucleus pulposus of the intervertebral disc?
Around 5-10 weeks
Test your knowledge on the core muscles and their functions in the human body, including their role in trunk flexion, lateral flexion, and hip flexion. Learn about muscles such as the transverse abdominis, obliques, psoas, and quadratus lumborum.
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