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Questions and Answers
What is the function of the Transverse Ligament of the Atlas?
What is the function of the Transverse Ligament of the Atlas?
Where is the Transverse Ligament of the Atlas firmly attached on either side?
Where is the Transverse Ligament of the Atlas firmly attached on either side?
What is another name for the Transverse Ligament of the Atlas?
What is another name for the Transverse Ligament of the Atlas?
Where is the Tectorial membrane situated?
Where is the Tectorial membrane situated?
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What is the function of Alar ligaments?
What is the function of Alar ligaments?
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What does the ligamentum nuchae connect according to the text?
What does the ligamentum nuchae connect according to the text?
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What does the Tectorial membrane appear to be a prolongation upward of?
What does the Tectorial membrane appear to be a prolongation upward of?
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What is unique about how Alar ligaments pass?
What is unique about how Alar ligaments pass?
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Which part is covered by Tectorial membrane?
Which part is covered by Tectorial membrane?
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What is inserted into the medial sides of the condyles of the occipital bone according to text?
What is inserted into the medial sides of the condyles of the occipital bone according to text?
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Study Notes
Intervertebral Joints
- Each vertebra interacts with adjacent vertebrae via intervertebral discs, creating two main types of articulation.
- The junctions between vertebrae function as amphiarthrodial joints and are structurally categorized as cartilaginous symphysis joints.
- Despite the slight individual movement between vertebrae, the collective movement across the vertebral column allows for a significant range of motion.
Anterior Longitudinal Ligament (ALL)
- The ALL is a robust ligament that runs along the anterior aspect of vertebral bodies from the occipital bone to the sacrum.
- This ligament serves to limit backward bending and supports the anterior curvature of the lumbar region.
Thoracic Cage Joints
- Each rib articulates with two vertebral bodies and one transverse process. For example, the 7th rib connects with T7, T6, and the transverse process of T7.
Sternocostal and Costochondral Joints
- The cartilaginous connections of true ribs to the sternum are primarily synovial joints, with the exception of the first rib, which has a synchondrosis articulation.
- Broad, thin membranous bands called anterior and posterior radiate sternocostal ligaments connect the cartilages of the ribs to the sternum.
- Sternocostal joints permit slight gliding movements.
- Costochondral joints involve the lateral end of costal cartilage fitting into depressions at the sternal ends of ribs, classified as synchondrosis, making them structurally synarthrosis.
Joint Movement
- The combined actions of the sternocostal, costotransverse, and costovertebral joints facilitate rib motion in an upward and lateral direction, referred to as "bucket handle" motion.
- The sternocostal joints alone generate a superior motion of the sternum, known as "pump handle" motion.
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Description
This quiz covers the anatomy of the joints of the vertebral column and thoracic cage, as discussed in Dr. Karyn Lumsden's lecture. Topics include intervertebral joints and articulations of the vertebrae. The content is based on Moore's Clinically Oriented Anatomy, 9th edition.
