Multiple Choice
Which anatomical term refers to a movement that increases the angle between two body parts?
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8. Joints
Joint Movements
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Which type of movement is not possible between the lumbar vertebrae?
A
Extension
B
Flexion
C
Rotation
D
Lateral flexion
Verified step by step guidance1
Understand the anatomy of the lumbar vertebrae: The lumbar vertebrae are located in the lower back and are larger and stronger than other vertebrae to support the weight of the upper body.
Identify the types of movements possible in the lumbar region: The lumbar vertebrae allow for flexion (bending forward), extension (bending backward), and lateral flexion (bending sideways).
Consider the structure of the lumbar vertebrae: The orientation of the facet joints in the lumbar region primarily allows for flexion and extension, with limited lateral flexion.
Analyze the restriction of rotational movement: Due to the orientation of the facet joints and the interlocking nature of the vertebrae, rotation is significantly restricted in the lumbar region compared to other parts of the spine.
Conclude why rotation is not possible: The lumbar vertebrae are designed to provide stability and support, which limits rotational movement to prevent injury and maintain structural integrity.
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